Electric Switch Mechanisms - Magnetrol International

Installation and Operating Manual 

Electric Switch 

Mechanisms 

Series 

B, C, D, F, 

O, Q, S, U, W, 

and X 

with 

Aluminum, 

Carbon Steel, 

or 

Cast Iron 

Housings

Read this Manual Before Installing 

This manual provides information on Electric Switch 

Mechanisms. It is important that all instructions are read 

carefully and followed in sequence. Detailed instructions 

are included in the Installation section of this manual. 

Conventions Used in this Manual 

Certain conventions are used in this manual to convey 

specific types of information. General technical material, 

support data, and safety information are presented in 

narrative form. The following styles are used for notes, 

cautions, and warnings. 

NOTES 

Notes contain information that augments or clarifies 

an operating step. Notes do not normally contain 

actions. They follow the procedural steps to which 

they refer. 

Cautions 

Cautions alert the technician to special conditions that 

could injure personnel, damage equipment, or reduce 

a component’s mechanical integrity. Cautions are also 

used to alert the technician to unsafe practices or the 

need for special protective equipment or specific 

materials. In this manual, a caution indicates a 

potentially hazardous situation which, if not avoided, 

may result in minor or moderate injury. 

WARNINGS 

Warnings identify potentially dangerous situations or 

serious hazards. In this manual, a warning indicates an 

imminently hazardous situation which, if not avoided, 

could result in serious injury or death. 

WARNING! Explosion hazard. Do not connect or 

disconnect equipment unless power has been switched off 

or the area is known to be non-hazardous. 

Low Voltage Directive 

For use in Installation Category II, Pollution Degree 2. If 

equipment is used in a manner not specified by manufacturer, 

protection provided by equipment may be 

impaired. 

Notice of Copyright and Limitations 

Magnetrol & Magnetrol logotype are registered trademarks 

of Magnetrol International. Copyright © 2012 

Magnetrol International. All rights reserved. 

Performance specifications are effective with date of issue 

and are subject to change without notice. 

Magnetrol reserves the right to make changes to the 

products described in this manual at any time without 

notice. Magnetrol makes no warranty with respect to the 

accuracy of the information in this manual. 

Warranty 

All Magnetrol mechanical level and flow controls are warranted 

free of defects in materials or workmanship for five 

full years from the date of original factory shipment. 

If returned within the warranty period; and, upon factory 

inspection of the control, the cause of the claim is 

determined to be covered under the warranty; then, 

Magnetrol will repair or replace the control at no cost to 

the purchaser (or owner) other than transportation. 

Magnetrol shall not be liable for misapplication, labor 

claims, direct or consequential damage or expense arising 

from the installation or use of equipment. There are no 

other warranties expressed or implied, except special 

written warranties covering some Magnetrol products. 

Quality Assurance 

The quality assurance system in place at Magnetrol 

guarantees the highest level of quality throughout the 

company. Magnetrol is committed to providing full 

customer satisfaction both in quality products and 

quality service. 

The Magnetrol quality assurance 

system is registered to ISO 9001 

affirming its commitment to known 

international quality standards 

providing the strongest assurance of 

product/service quality available.

Table of Contents 

Electric Switch Mechanisms 

1.0 Reference Information.....................................................4 

1.1 Principle of Operation ..............................................4 

1.2 Operating Cycle........................................................4 

1.3 Description ...............................................................5 

1.3.1 Dry contact switches B, C, D, O, Q, S and U ...5 

1.3.2 Hermetically sealed switches F, W and X........5 

2.0 Installation.......................................................................6 

2.1 Replacing Switch Mechanism....................................6 

2.2 Replacing Dry Contact Switches...............................7 

2.2.1 Series B, C, D, F, O, Q, S, U, W and X.........7 

2.3 Vibration Service Adjustment ...................................8 

3.0 Wiring .............................................................................9 

3.1 SPDT Terminal Connections....................................9 

3.1.1 Single float with one switch or 

single stage displacer.......................................9 

3.1.2 Single float with two switches or 

dual stage displacer.........................................9 

3.1.3 Single float with three switches or 

three stage displacer......................................10 

3.2 DPDT Terminal Connections.................................11 

3.2.1 Single float with one switch or 

single stage displacer.....................................11 

3.2.2 Single float with two switches or 

dual stage displacer.......................................11 

3.2.3 Three stage displacer ....................................12 

4.0 Preventative Maintenance..............................................13 

4.1 Inspect Switch Mechanisms.....................................13 

5.0 Switch Specifications .....................................................14 

6.0 Replacement Switch Mechanisms.................................15 

6.0.1 Magnet strength ...........................................15 

6.1 Yellow Dot Magnet Replacement Mechanisms........15 

6.1.1 Series B, C, D, F, O, Q, S, U, W and X.......15 

6.2 Red Dot Magnet Replacement Mechanisms............16 

6.2.1 Series B, C, F, U, W and X ..........................16 

7.0 Switch Housing Replacement Assemblies .....................17 

7.0.1 Aluminum housings .....................................17 

7.0.2 Cast iron housings........................................18 

7.0.3 Carbon steel housings...................................18 

7.1 Replacement Housing Kits......................................19 

7.1.1 Referred by eighth, ninth and tenth digit.....19 

7.1.2 Referred by description ................................19 

7.1.3 ATEX...........................................................19 

7.2 Replacement Gaskets and Hardware .......................20 

8.0 Manual Reset Option....................................................20 

8.1 Parts Breakdown and Identification.........................20 

8.2 Field Installation Instructions..................................21 

9.0 Switch and Housing Model Codes................................22 

9.1 Type 4, 4X, 7, 9 and Group B Enclosure Codes .....22 

9.2 ATEX Enclosure Codes...........................................31

5 

Process 

Liquid 

4 

Rising Level 

Figure 1 

Rising Level 

1 

3 

2 

Pivot 

Return 

Spring 

Process 

Liquid 

Falling Level 

Figure 2 

Falling Level 

1.0 Reference Information 

1.1 Principle of Operation 

Figures 1 & 2 illustrate the simple, reliable operating principle 

of a float level switch. Switching action is obtained 

through the use of a magnetic sleeve (4) and a float (3), 

displacer or flow sensing element and a switching mechanism 

(2). These two basic component assemblies are separated 

by a non-magnetic, pressure tight enclosing tube (5). 

The switch (2) and magnet (1) are assembled to a mechanism 

with a swinging arm which operates on precision 

stainless steel pivots. 

1.2 Operating Cycle 

As level of a liquid in a vessel rises (Figure 1), the float 

rides on the liquid surface moving the magnetic sleeve 

upward in the enclosing tube and into the field of the 

switch mechanism magnet. As a result, the magnet is 

drawn in tightly to the enclosing tube moving the switch 

adjusting screw and allowing the activating arm of the 

snap switch to move, making or breaking the electrical 

circuit. As the liquid level recedes (Figure 2), the float and 

magnetic sleeve moves downward until the switch magnet 

releases and is drawn outward, away from the enclosing 

tube by a tension spring. This in turn allows the activating 

arm of the snap switch to move, thus reversing 

switch action. 

Switch mechanisms may include a single switch or multiple 

switches, depending on operational requirements and 

switching action desired. 

4 42-683 Electric Switch Mechanisms

Figure 3 

Series B, C, D, O and Q Dry 

Contact Switches 

Figure 4 

Series S 

Snap Switch 

Figure 5 

Series F 

Hermetically Sealed Switch 

42-683 Electric Switch Mechanisms 

1.3 Description 

Magnetrol level controls are available with a range of different 

switch mechanisms—each designed for specific service 

conditions. A brief description of the individual switch 

mechanisms and their applications are given below. 

1.3.1 Dry Contact Switches B, C, D, O, Q, S and U 

• Series B switches are general purpose with a maximum 

liquid temperature rating of +250° F (+121° C), see 

Figure 3. 

• Series C switches are general purpose with a maximum 

liquid temperature rating of +450° F (+232° C), see 

Figure 3. 

• Series D switches are designed for DC current applications 

with a maximum liquid temperature rating of 

+250° F (+121° C), see Figure 3. 

• Series O switches are general purpose with a maximum 

liquid temperature rating of +300° F (+149° C), used only 

in model C10 and C15 units, see Figure 3. 

• Series Q switches are general purpose with a maximum 

liquid temperature rating of +250° F (+121° C), used only 

in model C10 and C15 units, see Figure 3. 

• Series S switches are general purpose with a maximum liquid 

temperature rating of +550° F (+288° C), or designed 

for DC current applications with a maximum liquid temperature 

of +250° F (+121° C), used only in model B40 

units, see Figure 4. 

• Series U switches have gold alloy contacts and are suitable 

for applications with a maximum liquid temperature of 

+250° F (+121° C). 

1.3.2 Hermetically Sealed Switches F, W and X 

Hermetically sealed switches are for use in special applications 

where hermetically sealed contacts are required. 

• Series F switches are well suited for use in process temperatures 

up to +750° F (+399° C), see Figure 5. 

• Series W switches are suitable for applications with a 

maximum liquid temperature of +450° F (+232° C). 

• Series X switches have gold-plated contacts and are suitable 

for applications with a maximum liquid temperature of 

+450° F (+232° C). 

NOTE: See bulletin 42-694 for series HS & H1 hermetically 

sealed switches. 

5

Figure 6 

Mounting Screw 

Figure 7 

Baffle Plate Screw 

Baffle Plate Screw 

2.0 Installation 

2.1 Replacing Switch Mechanism 

Caution: Before attempting to remove a switch mechanism, be certain 

to pull disconnect switch or otherwise assure that 

electrical circuit through control is de-energized. 

1. Disconnect wiring from supply side of terminal block 

on switch mechanism. Note and record lead wire 

terminal locations. 

2. Loosen screw in split mounting clamp until mechanism 

slides freely on enclosing tube, refer to Figure 6. 

3. Remove small round head screw securing lower switch 

mechanism to baffle plate, refer to Figure 7. 

4. Slide switch mechanism off of enclosing tube. If mechanism 

is to be reused, ensure that it is placed on a clean surface, 

free of metallic particles that may be attracted to the 

switch magnet. 

5. Loosen mounting screw so that switch frame will fit over 

e-tube. Install switch mechanism by sliding it over the 

enclosing tube. Slide mechanism down until the bottom of 

the frame and terminal block are resting on the baffle 

plate. The baffle plate should be resting on the hub of the 

housing base. 

6. Install and tighten baffle plate screw so that the switch 

mechanism may not be separated from the baffle plate. 

Tighten the mechanism mounting screw so that the mechanism 

is firmly clamped to the enclosing tube. 

7. Swing magnet assembly in and out by hand, checking 

carefully for any signs of binding. 

8. Reattached supply-side wiring to the terminal block and 

check switch function by varying liquid level in the vessel. 


Figure 8 

Dry Contact Switch Mechanism 


Adjusting 

Screw 

Mounting 

Screws 

2.2 Replacing Dry Contact Switches 

2.2.1 Series B, C, D, F, O, Q, S, U, W and X 

1. Disconnect control from power supply. 

2. Disconnect switch leads from terminal block. Note and 

record terminal connections of switch to be replaced. 

3. Remove two mounting screws holding existing switch, 

refer to Figure 8. 

4. Remove existing switch and install replacement switch in 

the same position, tightening mounting screws securely. 

NOTE: For proper operation of the replacement switch, it must actuate 

in the middle portion of the pivoted magnet’s swing. 

5. Check switch action and adjust as follows: 

a. Slowly rotate the pivoted magnet by hand, back and 

forth through its angle of swing, listening closely for the 

actuating click of the switch in each direction. 

b. Check to see if there is equal overtravel of magnet in its 

swing after the switch click in either direction. 

c. If switch actuation is not correct, change adjustment of 

actuating screw using a 1 ⁄16" hexagon key wrench, refer to 

Figure 8. 

NOTE: If a single switch is being replaced on a DPDT mechanism, 

lever of second switch must be depressed and held to allow 

for the audible adjustment of new switch, as described above. 

d. With new switch in adjustment, release lever of second 

switch and perform fine-tuning of both switches to 

provide simultaneous actuation (clicks). 

6. Reconnect power supply and test switch action by varying 

liquid level in the vessel or by “gently blowing down” 

float chamber. 

7

Vessel 

Baffle plate 

Direction of 

vibration 

Baffle plate 

Direction of vibration 

Incorrect 

Correct 

Swing of magnet 

Figure 9 

Rotation of Switch 

Mechanism in Vibration 

Frame mounting screw 

2.3 Vibration Service Adjustment 

Level controls are frequently used in applications where 

vibration is encountered, such as on scrubbers or compressors. 

Switch mechanisms may require repositioning to 

prevent unwanted magnet movement. This position is 

usually best at right angles to the direction of vibration. 

The direction of vibration may be determined by the 

arrangement of connections to the vessel or the vessels 

mounting method. Accordingly, the vibration will tend to 

be in one direction only. 

Upon determining the vibration direction, switch mechanism(s) 

may be rotated from an incorrect position (as 

shown in Figure 9, illustration is shown as looking at a 

control from above), to a correct position as follows: 

Caution: Before attempting to remove a switch mechanism, be certain 

to pull disconnect switch or otherwise assure that 

electrical circuit through control is de-energized. 

1. Disconnect control from power supply. 

2. Loosen screw in split mounting clamp until mechanism 

turns freely on enclosing tube, refer to Figure 6 on page 6. 

3. Rotate entire mechanism and bottom baffle plate together 

to the correct position. 

Caution: Be certain power supply wires retain some slack at new 

position. Do not pull wires taut. 

NOTE: Amount of rotation required will vary with each installation and 

may not be as much as shown in illustration. 

4. Check action of switch magnet at new position. When 

magnet vibrates from side to side, instead of front to back, 

correct position has been attained. 

5. Tighten clamp screw on switch mechanism. 

6. Reconnect power supply, and test switch action under 

operating conditions. 


Load 

Close on Low Level (NC) 

Common (C) 

Close on High Level (NO) 

Load 

Figure 10 

Single Float with One Switch 

or Single Stage Displacer 


4 

5 

6 

Internal 

Circuit 

3.0 Wiring 

Circuits shown are for direct-acting level switches and are 

reversed in side mounting float-in-tank models, which 

utilize a reversing float pivot. 

NOTE: See bulletin 42-694 for wiring diagrams for “HS” Series 

hermetically sealed switches. 

3.1 SPDT Terminal Connections 

3.1.1 Single float with one switch or single stage displacer 

1. Rising level closes contacts 5 & 6, see Figure 10. 

2. Falling level closes contacts 4 & 5. 

3. Wiring Diagram is reversed (high level actuation becomes 

low level actuation, etc.) when this switch mechanism is 

used on side mounted float switches employing a reversing 

pivot (Models B40, T52, T62, T63, etc.). 

3.1.2 Single float with two switches or dual stage displacer 

1. Rising level closes contacts 5 & 6 and 2 & 3, see Figure 11. 

2. Falling level closes contacts 4 & 5 and 1 & 2. 

3. Wiring diagram is reversed (high level actuation becomes 

low level actuation, etc.) when this switch mechanism is 

used on side mounted float switches employing a reversing 

pivot (Models B40, T52, T62, T63, etc.). 

4. On units with tandem floats, the top float operates the 

bottom mechanism while the bottom float actuates the 

top mechanism. 

Upper stage operates 

upper switch mechanism 

Load 

Load 


Common (C) 


Lower stage operates 

lower switch mechanism 

Load 


Common (C) 


Load 

1 

2 

3 

4 

5 

6 

Assem. 

A 

Assem. 

B 

Figure 11 

Single Float with Two Switches 

or Dual Stage Displacer 

Internal 

Circuit 

Internal 

Circuit 

9

3.1.3 Single float with three switches or 

three stage displacer: 



3. Unit is shipped with switches positioned for proper 

function. Do not change switch spacing. 



Load 


Common (C) 


Load 

Middle stage operates 

middle switch mechanism 

Load 


Common (C) 


Load 



Load 


Common (C) 


Load 

10 42-683 Electric Switch Mechanisms 

4 

5 

6 

1 

2 

3 

4 

5 

6 

Assem. 

B 

Assem. 

A 

Assem. 

B 

Figure 12 

Single Float with Three Switches 

or Three Stage Displacer 

Internal 

Circuit 

Internal 

Circuit 

Internal 

Circuit

Load 

Load 

Internal Circuit 

(Left Switch) 

Close on high level (NO) 

Common (C) 

Close on low level (NC) 


4 

5 

6 

Figure 13 

Single Float with One Switch 

or Single Stage Displacer 

1 

2 

3 


(Right Switch) 


Common (C) 


3.2 DPDT Terminal Connections 

3.2.1 Single float with one switch or single stage displacer 

1. Rising level closes contacts 5 & 6 and 2 & 3, see Figure13. 


3. Double pole action is obtained by simultaneous operation 

of the right and left side single pole double throw switches. 

4. Wiring diagram is reversed (close on high becomes close 

on low, etc.) when this switch mechanism is used on side 

mounted float switches employing a reversing pivot. 

(Models B40, T52, T62, T63, etc.) 

3.2.2 Single float with two switches or dual stage displacer 




of the right and left side single pole switches. 

4. Wiring diagram is reversed (close on high becomes close 

on low, etc.) when this switch mechanism is used on side 

mounted float switches employing a reversing pivot. 

(Models B40, T52, T62, T63, etc.) 

5. On units with tandem floats, the top float operates the 

bottom mechanism while the bottom float actuates the 

top mechanism. 

Load 

Load 

Lower stage operates lower switch mechanism 

Load 

Load 




Common (C) 


Upper stage operates upper switch mechanism 

Load 

Load 




Common (C) 


4 

5 

6 

4 

5 

6 

1 

2 

3 

1 

2 

3 




Common (C) 





Common (C) 


Figure 14 

Single Float with Two Switches or Dual Stage Displacer 

Load 

Load 

Load 

Load 

11

3.2.3 Three Stage Displacer 

Load 

Load 




of the right and left side single pole switches. 

Load 

Load 

Load 

Load 






Common (C) 


Middle stage operates 

middle switch mechanism 




Common (C) 







Common (C) 





4 

5 

6 

4 

5 

6 

4 

5 

6 

Figure 15 

Three Stage Displacer 

1 

2 

3 

1 

2 

3 

1 

2 

3 


Common (C) 





Common (C) 





Common (C) 


Load 

Load 

Load 

Load 

Load 

Load


4.0 Preventative Maintenance 

Inspect switch mechanisms, terminals and connections 

regularly. Proof test interval to be determined by application 

requirements (required reliablity, operating conditions, 

site requirements, etc.). 

4.1 Inspect Switch Mechanisms, Terminals 

and Connections 

1. Dry contact switches should be inspected for excessive 

wear on actuating lever or misalignment of adjustment 

screw at point of contact between screw and lever. Such 

wear can cause false switch actuating levels. 

2. DO NOT operate your control with defective or maladjusted 

switch mechanisms. 

3. Level controls may sometimes be exposed to excessive 

heat or moisture. Under such conditions, insulation on 

electrical wiring may become brittle, eventually breaking 

or peeling away. The resulting “bare” wires can cause 

short circuits. 

NOTE: Check wiring carefully and replace at the first sign of brittle 

insulation. 

4. Vibration may sometimes cause terminal screws to loosen. 

Check all terminal connections to be certain that screws 

are tight. 

NOTE: Spare switches should be kept on hand at all times. 

13

5.0 Switch Specifications 

RATING 

SWITCH SWITCH PROCESS 

SERIES TYPE TEMP. RANGE➀ LOAD Volts AC Volts DC 

° F (° C) 120 240 480 24 120 240 

-40 to +250 Non-Inductive Amp 15.00 15.00 15.00 6.00 0.50 0.25 

B Snap (-40 to +121) Inductive Amp 15.00 15.00 15.00 5.00 0.05 0.03 

1 1 Horsepower 

⁄8 ⁄4 — — — — 

-40 to +450 

Non-Inductive Amp 15.00 15.00 15.00 10.00 1.00 0.50 

C Snap 

(-40 to +232) 

Inductive Amp 15.00 15.00 15.00 5.00 0.50 — 


⁄10 ⁄6 — — — — 

D Snap 

F 

(followed Hermetic 

by letter) 

F 

(followed Hermetic 

by number) 

Non-Inductive Amp 10.00 — — 10.00 10.00 1.50 min. 

3.00 max. 

Inductive Amp 3.80 — — — 2.20 — 

Horsepower 1 

⁄8 — — — 1 

⁄8 — 

Resistive Amp 2.50 — — 4.00 ➁ 0.30 — 

Inductive Amp 2.50 — — 2.00 ➁ 0.10 — 

Resistive Amp 1.00 — — 15.00 ➁ — — 

Inductive Amp 1.00 — — 10.00 ➁ — — 

-40 to +450 Non-Inductive Amp 15.00 15.00 15.00 — 1.00 0.50 

O Snap (-40 to +232) Inductive Amp 

Horsepower 

15.00 

1 

⁄10 

15.00 

1 

⁄6 

15.00 

— 

— 

— 

— 

— 

— 

— 

-40 to +250 Non-Inductive Amp 15.00 15.00 15.00 6.00 0.50 0.25 

Q Snap (-40 to +121) Inductive Amp 15.00 15.00 15.00 5.00 0.05 0.30 


⁄8 ⁄4 — — — — 

SA 

SD 

SK 

SN 

-40 to +250 

(-40 to +121) 

-50 to +750 

(-46 to +399) 

-50 to +250 

(-46 to +121) 

-40 to +550 Non-Inductive Amp 15.00 15.00 15.00 — 1.00 0.50 

Snap (-40 to +288) Inductive Amp 

Horsepower 

15.00 

1 

⁄10 

15.00 

1 

⁄6 

15.00 

— 

— 

— 

0.50 

— 

— 

— 

SB 

SE 

SL Snap 

-40 to +250 

(-40 to +121) 

Non-Inductive Amp 

Inductive Amp 

10.00 

3.80 

— 

— 

— 

— 

10.00 

— 

10.00 

2.20 

1.50 min. 

3.00 max. 

— 

SO Horsepower 1 

⁄8 — — — 1 

⁄8 — 

(X) B 

(x=gold 

contacts) 

(X) F 

(x=gold 

contacts) 

(X) HS 

(x=gold 

contacts) 

U 

W 

X 

Snap 

Gold 

Contacts 

Hermetic 

Snap Gold 

Contacts 

Hermetic 

Snap Gold 

Contacts 

Snap Gold 

Contacts 

Hermetic 

Snap 

Hermetic 

Snap Gold 

Contacts 

-40 to +250 

(-40 to +121) 

-50 to +750 

(-46 to +399) 

-50 to +550 

(-46 to +288) ➂ 

-40 to +250 

(-40 to +121) 

-50 to +450 

(-46 to +232) 

-50 to +450 

(-46 to +232) 

Non-inductive 

Inductive 

Non-inductive 

Inductive 

Non-inductive 

Inductive 

Non-inductive Amp 

Inductive Amp 

Horsepower 


Inductive Amp 

Horsepower 


Inductive Amp 

Horsepower 

➀ Process temperatures based on +100° F (+38° C) ambient temperature. 

➁ 28 VDC 

➂ On steam applications, temperature down-rated to +400° F (+204° C) at +100° F (+38° C) ambient. 


1.00 

1.00 

— 

— 

1.00 

— 

1.00 

— 

— 

1.00 

— 

— 

0.50 

0.15 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

1.00 

0.80 

— 

0.50 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

1.00 

0.25 

2.00 

1.00 

— 

— 

— 

3.00 ➁ 

— 

— 

0.50 

— 

— 

— 

— 

— 

— 

— 

— 

1.00 

1.00 

— 

0.50 

— 

— 

0.50 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

0.50 

— 

—

6.1 Yellow Dot Magnet Replacement Mechanisms 

6.1.1 Series B, C, D, F, O, Q, S, U, W & X – Yellow 

Switch 

8th & 9th 

10th Digit 

E, F, Y, M, W, Q, B, S, K 


Series Contacts Quantity 

Digit Bottom Mech Middle Mech Top Mech Only 

B 

SPDT 

1 

2 

3 

BA, BK 

BB, BL 

BC, BM 

089-7401-104 

N/A 

089-7401-103 

N/A 

089-7401-104 089-7101-020 

DPDT 

1 

2 

BD, BN 

BE, BO 

089-7401-122 N/A 

N/A 

089-7401-122 

C 

SPDT 

1 

2 

3 

CA, CK 

CB, CL 

CC, CM 

089-7401-110 

N/A 

089-7401-109 

N/A 

089-7401-110 089-7101-022 

DPDT 

1 

2 

CD, CN 

CE, CO 

089-7401-125 N/A 

089-7401-125 

D 

SPDT 

1 

2 

3 

DA, DK 

DB, DL 

DC, DM 

089-7401-106 

N/A 

089-7401-105 

N/A 

089-7401-106 089-7101-024 

DPDT 

1 

2 

DD, DN 

DE, DO 

089-7401-123 N/A 

N/A 

089-7401-123 

F 

SPDT 

DPDT 

1 

2 

1 

2 

FA, FK 

FB, FL 

FD, FN 

FE, FO 

089-7401-095 

089-7401-098 

N/A 

N/A 

N/A 

089-7401-096 

N/A 

089-7401-098 

089-7101-041 

O 

SPDT 

DPDT 

3 

3 

OC, OM 

OE, OK 

089-7401-110 

089-7401-125 

089-7401-109 

089-7401-125 

089-7401-110 

089-7401-125 

089-7101-022 

Q 

SPDT 

DPDT 

3 

3 

QC, QM 

QE, QK 

089-7401-104 

089-7401-122 

089-7401-103 

089-7401-122 

089-7401-104 

089-7401-122 

089-7101-020 

S 

SPDT 

DPDT 

1 

1 

SA, SK 

SD, SN 

089-7401-126 

089-7401-128 

N/A 089-7101-022 

S (DC volt) 

SPDT 

DPDT 

1 

1 

SB, SL 

SE, SO 

089-7401-129 

089-7401-127 

N/A 089-7101-024 

Continued on next page. 


6.0 Replacement Switch Mechanisms 

6.0.1 Magnet strength 

Switch mechanisms are provided with different strength magnets 

as determined by the characteristics of the level switch. A 

red, red/yellow or yellow dot is visible on each magnet. When 

ordering replacement switch mechanisms, be certain to determine 

the color dot on the magnet. For these types of switches, 

the tenth digit of the model number identifies the magnet 

used on the control. The correct magnet dot color may be 

chosen by finding the tenth digit of your model number at 

the top of the chart. Any model numbers preceded with an 

“X” are specially modified controls. Contact the factory for 

replacement part numbers. 

15

6.1.1 Series B, C, D, F, O, Q, S, U, W & X – Yellow (cont.) 



U 

W 

X 

10th Digit 


8th & 9th 

G, H, R, D, V, P, A, T, J 

Series Contacts Quantity Digits Bottom Mech Middle Mech Top Mech 

B 

SPDT 

1 

2 

3 

BA, BK 

BB, BL 

BC, BM 

089-7401-102 

N/A 

089-7401-101 

N/A 

089-7401-102 

DPDT 

1 

2 

BD, BN 

BE, BO 

089-7401-121 N/A 

N/A 

089-7401-121 

C 

SPDT 

1 

2 

3 

CA, CK 

CB, CL 

CC, CM 

089-7401-108 

N/A 

089-7401-107 

N/A 

089-7401-108 

F 

U 

SPDT 

DPDT 

SPDT 

DPDT 

SPDT 

DPDT 

6.2 Red Dot Magnet Replacement Mechanisms 

6.2.1 Series B, C, F, U, W & X – Red, Red/Yellow 

DPDT 

SPDT 

DPDT 

SPDT 

DPDT 

8th & 9th 

Digits 

10th Digit 

E, F, Y, M, W, Q, B, S, K 

Bottom Mech Middle Mech Top Mech 

1 UA, UK, UU 047-5534-001 N/A N/A 

2 UB, UL, UV 047-5534-001 047-5535-001 N/A 

3 UC, UM, UW 047-5534-001 047-5535-001 047-5534-001 

1 UD, UN, UX 047-6520-001 N/A N/A 

2 UE, UO, UY 047-6520-001 047-6520-001 N/A 

1 WA, WK, WU 089-7410-004 N/A N/A 

2 WB, WL, WV 089-7410-004 089-7410-003 N/A 

3 WC, WM, WW 089-7410-004 089-7410-003 089-7410-004 

1 WD, WN, WX 089-7410-005 N/A N/A 

2 WE, WO, WY 089-7410-005 089-7410-005 N/A 

1 XA, XK, XU 089-7412-004 N/A N/A 

2 XB, XL, XV 089-7412-004 089-7412-003 N/A 

3 XC, XM, XW 089-7412-004 089-7412-003 089-7412-004 

1 XD, XN, XX 089-7412-005 N/A N/A 

2 XE, XO, XY, X4 089-7412-005 089-7412-005 N/A 

1 CD, CN 

N/A 

089-7401-124 N/A 

2 CE, CO 089-7401-124 

1 

2 

FA, FK 

FB, FL 

089-7401-093 

N/A 

089-7401-094 

1 

2 

FD, FN 

FE, FO 

089-7401-097 

N/A 

N/A 

089-7401-097 

1 UA, UK, UU 047-5533-001 N/A N/A 

2 UB, UL, UV 047-5533-001 047-5536-001 N/A 

3 UC, UM, UW 047-5533-001 047-5536-001 047-5533-001 

1 UD, UN, UX 047-6519-001 N/A N/A 

2 UE, UO, UY 047-6519-001 047-6519-001 N/A 

Switch Only 

037-4630-001 

037-9101-001 

037-9102-001 


089-7101-020 

089-7101-022 

089-7101-041 

037-4630-001 

Continued on next page. 


6.2.1 Series B, C, F, U, W & X – Red, Red/Yellow (cont.) 



W 

X 

Switch Assembly 

Patent Label 

Lockwasher 

Ground Screw 

Housing Base 

Breather Drain 

(optional) 

SPDT 

DPDT 

SPDT 

DPDT 

Figure 16 

Aluminum Housing Assembly 


Enclosing Tube Assembly 

Set Screw 

Set Screw 

O-ring 

Enclosing Tube Assembly 

Baffle Plate 

7.0 Switch Housing Replacement 

Assemblies 

Housing Cover 

Gasket 

Pipe Plug 

8th & 9th 

Digits 

When ordering replacement parts for an existing 

Magnetrol instrument, please specify: 

1. Model and serial numbers of control. 

2. Description and part number of replacement kit. 

The proper replacement switch housing kit and parts can 

be determined by the last three characters of the model 

number. In section 6.1.1 on page 18, locate the eighth and 

ninth digits of your model number at the left side of the 

chart. Follow the appropriate row across the page while 

locating the tenth digit of your model number at the top 

of the chart. In section 6.1.2 on page 18, the chart lists the 

replacement housing kits according to description. 

7.0.1 Aluminum Housings 

10th Digit 

G, H, R, D, V, P, A, T, J 

Bottom Mech Middle Mech Top Mech 

1 WA, WK, WU 089-7410-002 N/A N/A 

2 WB, WL, WV 089-7410-002 089-7410-001 N/A 

3 WC, WM, WW 089-7410-002 089-7410-001 089-7410-002 

1 N/A 

2 N/A 

N/A 

1 XA, XK, XU 089-7412-002 N/A N/A 

2 XB, XL, XV 089-7412-002 089-7412-001 N/A 

3 XC, XM, XW 089-7412-002 089-7412-001 089-7412-002 

1 N/A 

2 N/A 

N/A 


089-7411-001 

089-7413-001 

Die cast aluminum TYPE 4X housing replacements are 

available for general purpose or weatherproof installations. 

Explosion proof TYPE 4X/7/9 and Class I, Div 1, 

Group B housing replacements are available for hazardous 

atmosphere locations. Die cast aluminum housings are finished 

with a baked-on polyester powder coat paint. 

NOTE: Consult your local representative on applications to meet 

other codes or approvals not covered in this bulletin. 

17

Figure 18 

Carbon Steel Housing Assembly 

7.0.2 Cast Iron Housings 

Cast Iron TYPE 7/9 housing replacements are available for 

hazardous atmosphere locations. Both Class I, Div. 1, 

Groups C&D and Group B versions are available. The 

grey iron cover and base are finished with a baked-on polyester 

powder coat paint. 


NEMA and other codes not covered in this bulletin. 

Figure 17 

Cast Iron Housing Assembly 

7.0.3 Carbon Steel Housings 

Carbon steel TYPE 4X switch housings are available for 

general purpose and weatherproof installations. The housing 

base is cast from aluminum while the cover is made 

from cold rolled steel. The housings are finished with a 

baked-on polyester powder coat paint. 


other codes or approvals not covered in this bulletin. 


7.1 Replacement Housing Kits ➀ 

7.1.1 Referenced by eighth, ninth and tenth digit 

Eighth Digit Ninth Digit 

B, C, D, 

F, G, H, I, S 

Cover 

Height 

Short 

Tall 

X-Tall 

O, Q 

➀ Housing kits include o-rings and hardware. Baffle plate not included. 

➁ Cover kit only. Housing base must be ordered separately by P/N 089-6505-003. 

7.1.2 Referenced by description 

Housing Material TYPE 1 TYPE 4X TYPE 4X/7/9 TYPE 7/9 Group B 

Lexan Cover Kit 089-6522-001➁ 


TYPE 4X/7/9 

with drain 

TYPE 7/9 

with drain 

CS cover, aluminum base 089-6511-003➁ 089-6509-003➁ N/A 

N/A 

N/A 

N/A 

Cast aluminum 

089-6582-023 089-6582-023 089-6582-032 089-6582-028 

N/A 

Cast Iron N/A 089-6582-002 N/A 089-6582-003 

CS cover, aluminum base 089-6512-003➁ 089-6510-003➁ N/A 

N/A 

N/A 

N/A 

Cast aluminum 

089-6582-024 089-6582-024 089-6582-033 089-6582-029 

N/A 

Cast Iron N/A 089-6582-005 089-6582-008 N/A 089-6582-006 

CS cover, aluminum base 

089-6528-003 N/A 

Cast aluminum N/A 089-6582-025 089-6582-025 

Cast Iron N/A 089-6578-001 

7.1.3 ATEX Housing Replacements 

Housing 

Material 

Cast Alum 

Cast Iron 

Tenth Digit 

E, G, Y, R P, Q S, T F, H, D, M A, B J, K, G V, W 

A, B, C, D, E 089-6509-003➁ 089-6582-023 N/A 089-6510-003➁ 089-6582-024 N/A N/A 

K, L, M, N, O 089-6582-002 089-6582-023 089-6582-032 089-6582-005 089-6582-024 089-6582-033 089-6582-008 

U, V, W, X, Y 089-6582-003 089-6582-028 

089-6582-006 089-6582-029 

A, B, C, D, E 

N/A 089-6528-003 089-6582-025 

N/A N/A 

K, L, M, N, O 089-6578-001 089-6582-025 

Part Description 

N/A 

N/A N/A 

N/A N/A N/A 

Short Tall 

XP IS XP IS 

Cover 089-6582-035 089-6582-036 089-6582-037 089-6582-038 

Base w/ 1" NPT conduit entry 089-6582-041 089-6582-043 089-6582-041 089-6582-043 

Base w/ M20 × 1.5 conduit entry 089-6582-040 089-6582-042 089-6582-040 089-6582-042 

Cover 

Base w/ 3 ⁄4" NPT conduit entry 

Base w/ M20 × 1.5 conduit entry 

C/F 

19

7.2 Replacement Gaskets and Hardware 

Housing Material 

8.0 Manual Reset Option 

8.1 Parts Breakdown and Identification 

Part No. 089-6507-001, on Boiler Controls Equipped 

with Manual Reset (*denotes included in kit) 

Round head screw* 

(Baffle Plate to Switch 

Mechanism) 

Enclosure 

Type 

Fastening screw (or nut) 

Clamp screw 

Reset actuating assembly* 

9th Digit 10th Digit 

CS cover, aluminum base Type 4, 4X A, B, C, D, E D, E, F, H, R, Y, M, G 

Figure 19 

3/4" 

O-ring 

012-2201-116 

Switch cover 

1 ⁄4" Drilled hole 


7 ⁄8" 

Cover 

Gasket 

Baffle 

Plate➂ 

Switch assembly 

Baffle plate assembly* 

Nameplate and 

serial number 

Reset plunger* 

Cover 

Hardware 

012-1318-001 036-5303-001 089-6508-001 

Cast Iron Type 7/9, 4X/7/9 K, L, M, N, O D, R, Y, M 012-2201-249 036-5303-001 

Cast Iron Group B K, L, M, N, O V, W 012-2201-222 005-6603-135 

Cast Aluminum 

Type 4X A, B, C, D, E A, B, P, Q 

Type 4X/7/9, 7/9 K, L, M, N, O A, B, P, Q 

Group B K, L, M, N, O J, K, S, T 

ATEX XP A, B, C, D, E, F, G C, 9 

ATEX IS A, B, C, D, E S, T 

012-2201-253 005-6657-001 

Cast Iron ATEX XP U, V, W, Y, 7 5, 7 N/A 012-1301-005 036-5303-001 

➂ For models with manual reset options, see page 23 for parts. 

N/A


8.2 Field Installation Instructions 

Caution: Before attempting work on any level control, be certain to 

pull disconnect switch or otherwise assure that electrical 

circuit through control is de-energized. 

1. Remove switch cover by loosening fastening screw (or nut). 

2. Drill a 1 ⁄4" diameter hole in cover at 7 ⁄8" up from bottom 

edge, as shown. 

3. Disconnect wiring from supply side of terminal strip on 

switch mechanisms. 

NOTE: Measure location of switch mechanism(s) on enclosing tube 

and record for reference use during reassembly. (Measure 

from top of enclosing tube to top of mounting clamp on switch 

mechanism[s]). 

4. Loosen screw in split mounting clamp of switch mechanism(s) 

until assembly moves freely on enclosing tube. 

5. Remove small round head screw securing baffle plate to 

switch mechanism. 

6. Carefully lift off switch mechanism(s) and baffle plate. 

Place on a clean surface, free of any metal particles that 

may be attracted onto the magnet(s). 

7. Install a new baffle plate assembly, with manual reset 

mechanism, and carefully replace switch mechanism(s) in 

reverse of steps 3 through 6 above. 

8. Replace switch cover, lining up drilled hole with hole in 

reset actuating mechanism. Do not tighten cover fastening 

screw (or nut) at this point. 

9. Thread reset plunger into actuating mechanism through 

drilled hole in switch cover and thumb tighten securely. 

Reposition switch cover as necessary to be certain it does 

not bind reset plunger. 

10. Tighten fastening screw (or nut) on switch cover and 

check action of plunger to see that it moves freely. 

11. Vary level in float chamber to test operation of manual 

reset mechanism. 

NOTE: Boiler level controls should not start firing equipment when 

boiler water level has returned to normal (safe point) until reset 

plunger has been manually depressed. If control starts firing 

equipment, magnet stop arm on switch mechanism must be 

bent out on switch frame 1 ⁄32" allowing magnet to swing further 

from enclosing tube arm and into the field of the reset magnet. 

Caution: If it is necessary to reposition manual reset plunger, entire 

switch mechanism(s) must be loosened and rotated on 

enclosing tube to desired position (refer to step 4). Do not 

attempt to position plunger by twisting switch cover or 

damage to switch mechanism(s) will result. 

21

9.0 Switch and Housing Model Codes 


Type 

The following charts identify the switch and housing model codes used with the buoyancy products. The 

eighth, ninth and tenth digit combinations may be used to identify the type and number of switches, 

number of contacts, switch magnet strength as well as housing type, size and options. The switch and 

housing codes in bold are currently valid and available in combination with various buoyancy products. 

The unbolded codes are no longer valid and should be replaced by the appropriate valid code. Mercury 

switches are no longer available. All mercury switch mechanisms should be replaced by dry contact 

mechanisms with the appropriate process temperature rating. See switch specifications, page 13. 

example model number: 

Housing 

Height 

& Options 


Contacts 

Set 

Points 

Magnet 

Dot Color 

B K A 

9.1 Type 4, 4X, 7, 9 and Group B Enclosure Codes 

Type 4 

Carbon 

Steel 

Type 4X 

Carbon 

Steel 

Type 7/9 

Cast Iron 

Type 4X 

Cast Alum 

1" NPT 

Type 4X 

Cast Alum 

M20 × 1.5 

Type 4X/7/9 

Cast Alum 

Group B 

Cast Iron 

Type 4X/7/9 

Group B 

Cast Alum 

Short 

1 

Yellow 

Red 

Yellow 

AAE 

AAG 

AAF 

AAY 

AAR 

AAM 

AKY 

AKR 

AKM 

AAQ 

AAP 

AAB 

A2Q 

A2P 

A2B 

AKQ 

AKP 

AKB 

— 

— 

AKW 

AKS 

AKT 

AKK 

Tall 

SPDT 

2 

Red 

Yellow 

Red 

AAH 

ABF 

ABH 

AAD 

ABM 

ABD 

AKD 

ALM 

ALD 

AAA 

ABB 

ABA 

A2A 

A4B 

A4A 

AKA 

ALB 

ALA 

AKV 

ALW 

ALV 

AKJ 

ALK 

ALJ 

3 

Yellow 

Red 

ACF 

ACH 

ACM 

ACD 

AMM 

AMD 

ACB 

ACA 

A6B 

A6A 

AMB 

AMA 

AMW 

AMV 

AMK 

AMJ 

Short 

Tall 

DPDT 

1 

2 

Yellow 

Red 

Yellow 

Red 

Yellow 

Red 

ADE 

ADG 

ADF 

ADH 

AEF 

AEH 

ADY 

ADR 

ADM 

ADD 

AEM 

AED 

ANY 

ANR 

ANM 

AND 

AOM 

AOD 

ADQ 

ADP 

ADB 

ADA 

AEB 

AEA 

A8Q 

A8P 

A8B 

A8A 

A1B 

A1A 

ANQ 

ANP 

ANB 

ANA 

AOB 

AOA 

— 

— 

ANW 

ANV 

AOW 

AOV 

ANS 

ANT 

ANK 

ANJ 

AOK 

AOJ 

Short w/ 

Yellow — — AUY — — AUQ — — 

Drain 

1 

Red 

Yellow 

— 

— 

— 

— 

AUR 

AUM 

— 

— 

— 

— 

AUP 

AUB 

— 

— 

— 

— 

Tall w/ 

Drain 

SPDT 

2 

Red 

Yellow 

Red 

— 

— 

— 

— 

— 

— 

AUD 

AVM 

AVD 

— 

— 

— 

— 

— 

— 

AUA 

AVB 

AVA 

— 

— 

— 

— 

— 

— 

Mercury 

3 

Yellow 

Red 

— 

— 

— 

— 

AWM 

AWD 

— 

— 

— 

— 

AWB 

AWA 

— 

— 

— 

— 

Short w/ 

Yellow — — AXY — — AXQ — — 

Drain 

Tall w/ 

DPDT 

1 

Red 

Yellow 

Red 

— 

— 

— 

— 

— 

— 

AXR 

AXM 

AXD 

— 

— 

— 

— 

— 

— 

AXP 

AXB 

AXA 

— 

— 

— 

— 

— 

— 

Drain 

2 

Yellow 

Red 

— 

— 

— 

— 

AYM 

AYD 

— 

— 

— 

— 

AYB 

AYA 

— 

— 

— 

— 

Short w/ 

Yellow AFE AFY APY AFQ — APQ — — 

Heater 

1 

Red 

Yellow 

AFG 

AFF 

AFR 

AFM 

APR 

APM 

AFP 

AFB 

— 

— 

APP 

APB 

— 

— 

— 

— 

Tall w/ 

Heater 

SPDT 

2 

Red 

Yellow 

Red 

AFH 

AGF 

AGH 

AFD 

AGM 

AGD 

APD 

AQM 

AQD 

AFA 

AGB 

AGA 

— 

— 

— 

APA 

AQB 

AQA 

— 

— 

— 

— 

— 

— 

3 

Yellow 

Red 

AHF 

AHH 

AHM 

AHD 

ARM 

ARD 

AHB 

AHA 

— 

— 

ARB 

ARA 

— 

— 

— 

— 

Short w/ 

Yellow AIE AIY ASY AIQ — ASQ — — 

Heater 

Tall w/ 

DPDT 

1 

Red 

Yellow 

Red 

AIG 

AIF 

AIH 

AIR 

AIM 

AID 

ASR 

ASM 

ASD 

AIP 

AIB 

AIA 

— 

— 

— 

ASP 

ASB 

ASA 

— 

— 

— 

— 

— 

— 

Heater 

2 

Yellow 

Red 

AJF 

AJH 

AJM 

AJD 

ATM 

ATD 

AJB 

AJA 

— 

— 

ATB 

ATA 

— 

— 

— 

— 

The switch and housing codes in bold are currently valid and available. Those not in bold are no longer valid. 




Type 

Housing 

Height 

& Options 


Contacts 


Set 

Points 

Magnet 

Dot Color 

Type 4 

Carbon 

Steel 

Type 4X 

Carbon 

Steel 

Type 7/9 

Cast Iron 

Type 4X 

Cast Alum 

1" NPT 

Type 4X 

Cast Alum 

M20 × 1.5 

Type 4X/7/9 

Cast Alum 

Group B 

Cast Iron 

Type 4X/7/9 

Group B 

Cast Alum 

Short 

1 

Yellow 

Red 

Yellow 

BAE 

BAG 

BAF 

BAY 

BAR 

BAM 

BKY 

BKR 

BKM 

BAQ 

BAP 

BAB 

B2Q 

B2P 

B2B 

BKQ 

BKP 

BKB 

— 

— 

BKW 

BKS 

BKT 

BKK 

Tall 

SPDT 

2 

Red 

Yellow 

Red 

BAH 

BBF 

BBH 

BAD 

BBM 

BBD 

BKD 

BLM 

BLD 

BAA 

BBB 

BBA 

B2A 

B4B 

B4A 

BKA 

BLB 

BLA 

BKV 

BLW 

BLV 

BKJ 

BLK 

BLJ 

3 

Yellow 

Red 

BCF 

BCH 

BCM 

BCD 

BMM 

BMD 

BCB 

BCA 

B6B 

B6A 

BMB 

BMA 

BMW 

BMV 

BMK 

BMJ 

Short 

Tall 

DPDT 

1 

2 

Yellow 

Red 

Yellow 

Red 

Yellow 

Red 

BDE 

BDG 

BDF 

BDH 

BEF 

BEH 

BDY 

BDR 

BDM 

BDD 

BEM 

BED 

BNY 

BNR 

BNM 

BND 

BOM 

BOD 

BDQ 

BDP 

BDB 

BDA 

BEB 

BEA 

B8Q 

B8P 

B8B 

B8A 

B1B 

B1A 

BNQ 

BNP 

BNB 

BNA 

BOB 

BOA 

— 

— 

BNW 

BNV 

BOW 

BOV 

BNS 

BNT 

BNK 

BNJ 

BOK 

BOJ 

Short w/ 

Yellow — — BUY — — BUQ — — 

Drain 

1 

Red 

Yellow 

— 

— 

— 

— 

BUR 

BUM 

— 

— 

— 

— 

BUP 

BUB 

— 

— 

— 

— 

Tall w/ 

Drain 

SPDT 

2 

Red 

Yellow 

Red 

— 

— 

— 

— 

— 

— 

BUD 

BVM 

BVD 

— 

— 

— 

— 

— 

— 

BUA 

BVB 

BVA 

— 

— 

— 

— 

— 

— 

3 

Yellow 

Red 

— 

— 

— 

— 

BWM 

BWD 

— 

— 

— 

— 

BWB 

BWA 

— 

— 

— 

— 

Short w/ 

Yellow — — BXY — — BXQ — — 

Drain 

Tall w/ 

DPDT 

1 

Red 

Yellow 

Red 

— 

— 

— 

— 

— 

— 

BXR 

BXM 

BXD 

— 

— 

— 

— 

— 

— 

BXP 

BXB 

BXA 

— 

— 

— 

— 

— 

— 

Dry Contact 

Drain 

Short w/ 

2 

Yellow 

Red 

Yellow 

— 

— 

BFE 

— 

— 

BFY 

BYM 

BYD 

BPY 

— 

— 

BFQ 

— 

— 

— 

BYB 

BYA 

BPQ 

— 

— 

— 

— 

— 

— 

Heater 

1 

Red 

Yellow 

BFG 

BFF 

BFR 

BFM 

BPR 

BPM 

BFP 

BFB 

— 

— 

BPP 

BPB 

— 

— 

— 

— 

Tall w/ 

Heater 

SPDT 

2 

Red 

Yellow 

Red 

BFH 

BGF 

BGH 

BFD 

BGM 

BGD 

BPD 

BQM 

BQD 

BFA 

BGB 

BGA 

— 

— 

— 

BPA 

BQB 

BQA 

— 

— 

— 

— 

— 

— 

3 

Yellow 

Red 

BHF 

BHH 

BHM 

BHD 

BRM 

BRD 

BHB 

BHA 

— 

— 

BRB 

BRA 

— 

— 

— 

— 

Short w/ 

Yellow BIE BIY BSY BIQ — BSQ — — 

Heater 

Tall w/ 

DPDT 

1 

Red 

Yellow 

Red 

BIG 

BIF 

BIH 

BIR 

BIM 

BID 

BSR 

BSM 

BSD 

BIP 

BIB 

BIA 

— 

— 

— 

BSP 

BSB 

BSA 

— 

— 

— 

— 

— 

— 

Heater 

2 

Yellow 

Red 

BJF 

BJH 

BJM 

BJD 

BTM 

BTD 

BJB 

BJA 

— 

— 

BTB 

BTA 

— 

— 

— 

— 

Short 

1 

Yellow 

Red 

Yellow 

CAE 

CAG 

CAF 

CAY 

CAR 

CAM 

CKY 

CKR 

CKM 

CAQ 

CAP 

CAB 

C2Q 

C2P 

C2B 

CKQ 

CKP 

CKB 

— 

— 

CKW 

CKS 

CKT 

CKK 

Tall 

SPDT 

2 

Red 

Yellow 

Red 

CAH 

CBF 

CBH 

CAD 

CBM 

CBD 

CKD 

CLM 

CLD 

CAA 

CBB 

CBA 

C2A 

C4B 

C4A 

CKA 

CLB 

CLA 

CKV 

CLW 

CLV 

CKJ 

CLK 

CLJ 

3 

Yellow 

Red 

CCF 

CCH 

CCM 

CCD 

CMM 

CMD 

CCB 

CCA 

C6B 

C6A 

CMB 

CMA 

CMW 

CMV 

CMK 

CMJ 

Short 

Tall 

DPDT 

1 

2 

Yellow 

Red 

Yellow 

Red 

Yellow 

Red 

CDE 

CDG 

CDF 

CDH 

CEF 

CEH 

CDY 

CDR 

CDM 

CDD 

CEM 

CED 

CNY 

CNR 

CNM 

CND 

COM 

COD 

CDQ 

CDP 

CDB 

CDA 

CEB 

CEA 

C8Q 

C8P 

C8B 

C8A 

C1B 

C1A 

CNQ 

CNP 

CNB 

CNA 

COB 

COA 

— 

— 

CNW 

CNV 

COW 

COV 

CNS 

CNT 

CNK 

CNJ 

COK 

COJ 


23



Type 

Dry Contact 

DC Voltage 

Dry Contact 

Housing 

Height 

& Options 

Short w/ 

Drain 

Tall w/ 

Drain 

Short w/ 

Drain 

Tall w/ 

Drain 

Short w/ 

Heater 

Tall w/ 

Heater 

Short w/ 

Heater 

Tall w/ 

Heater 

Short 

Tall 

Short 

Tall 

Short w/ 

Drain 

Tall w/ 

Drain 

Short w/ 

Drain 

Tall w/ 

Drain 

Short w/ 

Heater 

Tall w/ 

Heater 


Contacts 

SPDT 

DPDT 

SPDT 

DPDT 

SPDT 

DPDT 

SPDT 

DPDT 

SPDT 

Set 

Points 

Magnet 

Dot Color 

Type 4 

Carbon 

Steel 

Type 4X 

Carbon 

Steel 

Type 7/9 

Cast Iron 

Type 4X 

Cast Alum 

1" NPT 

Type 4X 

Cast Alum 

M20 × 1.5 

Type 4X/7/9 

Cast Alum 

Group B 

Cast Iron 

Type 4X/7/9 

Group B 

Cast Alum 

Yellow — — CUY — — CUQ — — 

1 

Red 

Yellow 

— 

— 

— 

— 

CUR 

CUM 

— 

— 

— 

— 

CUP 

CUB 

— 

— 

— 

— 

Red — — CUD — — CUA — — 

2 

Yellow 

Red 

— 

— 

— 

— 

CVM 

CVD 

— 

— 

— 

— 

CVB 

CVA 

— 

— 

— 

— 

3 

Yellow 

Red 

— 

— 

— 

— 

CWM 

CWD 

— 

— 

— 

— 

CWB 

CWA 

— 

— 

— 

— 

Yellow — — CXY — — CXQ — — 

1 

Red 

Yellow 

— 

— 

— 

— 

CXR 

CXM 

— 

— 

— 

— 

CXP 

CXB 

— 

— 

— 

— 

Red — — CXD — — CXA — — 

2 

Yellow 

Red 

— 

— 

— 

— 

CYM 

CYD 

— 

— 

— 

— 

CYB 

CYA 

— 

— 

— 

— 

Yellow CFE CFY — CFQ — — — — 

1 

Red 

Yellow 

CFG 

CFF 

CFR 

CFM 

— 

— 

CFP 

CFB 

— 

— 

— 

— 

— 

— 

— 

— 

Red CFH CFD — CFA — — — — 

2 

Yellow 

Red 

CGF 

CGH 

CGM 

CGD 

— 

— 

CGB 

CGA 

— 

— 

— 

— 

— 

— 

— 

— 

3 

Yellow 

Red 

CHF 

CHH 

CHM 

CHD 

— 

— 

CHB 

CHA 

— 

— 

— 

— 

— 

— 

— 

— 

Yellow CIE CIY — CIQ — — — — 

1 

Red 

Yellow 

CIG 

CIF 

CIR 

CIM 

— 

— 

CIP 

CIB 

— 

— 

— 

— 

— 

— 

— 

— 

Red CIH CID — CIA — — — — 

2 

Yellow 

Red 

CJF 

CJH 

CJM 

CJD 

— 

— 

CJB 

CJA 

— 

— 

— 

— 

— 

— 

— 

— 

1 

Yellow 

Yellow 

DAE 

DAF 

DAY 

DAM 

DKY 

DKM 

DAQ 

DAB 

D2Q 

D2B 

DKQ 

DKB 

— 

DKW 

DKS 

DKK 

2 Yellow DBF DBM DLM DBB D4B DLB DLW DLK 

3 Yellow DCF DCM DMM DCB D6B DMB DMW DMK 

1 

Yellow 

Yellow 

DDE 

DDF 

DDY 

DDM 

DNY 

DNM 

DDQ 

DDB 

D8Q 

D8B 

DNQ 

DNB 

— 

DNW 

DNS 

DNK 

2 Yellow DEF DEM DOM DEB D1B DOB DOW DOK 

1 

Yellow — — DUY — — DUQ — — 

Yellow — — DUM — — DUB — — 

2 Yellow — — DVM — — DVB — — 

3 Yellow — — DWM — — DWB — — 

1 

Yellow — — DXY — — DXQ — — 

Yellow — — DXM — — DXB — — 

2 Yellow — — DYM — — DYB — — 

1 

Yellow DFE DFY DPY DFQ — DPQ — — 

Yellow DFF DFM DPM DFB — DPB — — 

2 Yellow DGF DGM DQM DGB — DQB — — 

3 Yellow DHF DHM DRM DHB — DRB — — 

Short w/ 

Heater 

Tall w/ 

DPDT 

1 

Yellow 

Yellow 

DIE 

DIF 

DIY 

DIM 

DSY 

DSM 

DIQ 

DIB 

— 

— 

DSQ 

DSB 

— 

— 

— 

— 

Heater 

2 Yellow DJF DJM DTM DJB — DTB — — 





Type 

Housing 

Height 

& Options 


Contacts 


Set 

Points 

Magnet 

Dot Color 

Type 4 

Carbon 

Steel 

Type 4X 

Carbon 

Steel 

Type 7/9 

Cast Iron 

Type 4X 

Cast Alum 

1" NPT 

Type 4X 

Cast Alum 

M20 × 1.5 

Type 4X/7/9 

Cast Alum 

Group B 

Cast Iron 

Type 4X/7/9 

Group B 

Cast Alum 

Short 

1 

Yellow 

Red 

Yellow 

EAE 

EAG 

EAF 

EAY 

EAR 

EAM 

EKY 

EKR 

EKM 

EAQ 

EAP 

EAB 

— 

— 

— 

EKQ 

EKP 

EKB 

— 

— 

EKW 

EKS 

EKT 

EKK 

Tall 

SPDT 

2 

Red 

Yellow 

Red 

EAH 

EBF 

EBH 

EAD 

EBM 

EBD 

EKD 

ELM 

ELD 

EAA 

EBB 

EBA 

— 

— 

— 

EKA 

ELB 

ELA 

EKV 

ELW 

ELV 

EKJ 

ELK 

ELJ 

3 

Yellow 

Red 

ECF 

ECH 

ECM 

ECD 

EMM 

EMD 

ECB 

ECA 

— 

— 

EMB 

EMA 

EMW 

EMV 

EMK 

EMJ 

Short 

Tall 

DPDT 

1 

2 

Yellow 

Red 

Yellow 

Red 

Yellow 

Red 

EDE 

EDG 

EDF 

EDH 

EEF 

EEH 

EDY 

EDR 

EDM 

EDD 

EEM 

EED 

ENY 

ENR 

ENM 

END 

EOM 

EOD 

EDQ 

EDP 

EDB 

EDA 

EEB 

EEA 

— 

— 

— 

— 

— 

— 

ENQ 

ENP 

ENB 

ENA 

EOB 

EOA 

— 

— 

ENW 

ENV 

EOW 

EOV 

ENS 

ENT 

ENK 

ENJ 

EOK 

EOJ 

Short w/ 

Yellow — — EUY — — EUQ — — 

Drain 

1 

Red 

Yellow 

— 

— 

— 

— 

EUR 

EUM 

— 

— 

— 

— 

EUP 

EUB 

— 

— 

— 

— 

Vibration 

Resistant 

Mercury 

Tall w/ 

Drain 

Short w/ 

SPDT 

2 

3 

Red 

Yellow 

Red 

Yellow 

Red 

Yellow 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

EUD 

EVM 

EVD 

EWM 

EWD 

EXY 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

EUA 

EVB 

EVA 

EWB 

EWA 

EXQ 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

Drain 

Tall w/ 

DPDT 

1 

Red 

Yellow 

Red 

— 

— 

— 

— 

— 

— 

EXR 

EXM 

EXD 

— 

— 

— 

— 

— 

— 

EXP 

EXB 

EXA 

— 

— 

— 

— 

— 

— 

Drain 

2 

Yellow 

Red 

— 

— 

— 

— 

EYM 

EYD 

— 

— 

— 

— 

EYB 

EYA 

— 

— 

— 

— 

Short w/ 

Yellow EFE EFY EPY EFQ — EPQ — — 

Heater 

1 

Red 

Yellow 

EFG 

EFF 

EFR 

EFM 

EPR 

EPM 

EFP 

EFB 

— 

— 

EPP 

EPB 

— 

— 

— 

— 

Tall w/ 

Heater 

SPDT 

2 

Red 

Yellow 

Red 

EFH 

EGF 

EGH 

EFD 

EGM 

EGD 

EPD 

EQM 

EQD 

EFA 

EGB 

EGA 

— 

— 

— 

EPA 

EQB 

EQA 

— 

— 

— 

— 

— 

— 

3 

Yellow 

Red 

EHF 

EHH 

EHM 

EHD 

ERM 

ERD 

EHB 

EHA 

— 

— 

ERB 

ERA 

— 

— 

— 

— 

Short w/ 

Yellow EIE EIY ESY EIQ — ESQ — — 

Heater 

Tall w/ 

DPDT 

1 

Red 

Yellow 

Red 

EIG 

EIF 

EIH 

EIR 

EIM 

EID 

ESR 

ESM 

ESD 

EIP 

EIB 

EIA 

— 

— 

— 

ESP 

ESB 

ESA 

— 

— 

— 

— 

— 

— 

Heater 

2 

Yellow 

Red 

EJF 

EJH 

EJM 

EJD 

ETM 

ETD 

EJB 

EJA 

— 

— 

ETB 

ETA 

— 

— 

— 

— 

Herm. Sealed 

Short 

Tall 

SPDT 

1 

2 

Yellow 

Red 

Yellow 

Red 

Yellow 

Red 

FAE 

FAG 

FAF 

FAH 

FBF 

FBH 

FAY 

FAR 

FAM 

FAD 

FBM 

FBD 

FKY 

FKR 

FKM 

FKD 

FLM 

FLD 

FAQ 

FAP 

FAB 

FAA 

FBB 

FBA 

F2Q 

F2P 

FCB 

FCA 

FFB 

FFA 

FKQ 

FKP 

FKB 

FKA 

FLB 

FLA 

— 

— 

FKW 

FKV 

FLW 

FLV 

FKS 

FKT 

FKK 

FKJ 

FLK 

FLJ 

Dry Contact 

Short 

Tall 

DPDT 

1 

2 

Yellow 

Red 

Yellow 

Red 

Yellow 

Red 

FDE 

FDG 

FDF 

FDH 

FEF 

FEH 

FDY 

FDR 

FDM 

FDD 

FEM 

FED 

FNY 

FNR 

FNM 

FND 

FOM 

FOD 

FDQ 

FDP 

FDB 

FDA 

FEB 

FEA 

F8Q 

F8P 

FGB 

FGA 

FHB 

FHA 

FNQ 

FNP 

FNB 

FNA 

FOB 

FOA 

— 

— 

FNW 

FNV 

FOW 

FOV 

FNS 

FNT 

FNK 

FNJ 

FOK 

FOJ 


25



Type 

Housing 

Height 

& Options 


Contacts 

Set 

Points 

Magnet 

Dot Color 

Type 4 

Carbon 

Steel 

Type 4X 

Carbon 

Steel 

Type 7/9 

Cast Iron 

Type 4X 

Cast Alum 

1" NPT 

Type 4X 

Cast Alum 

M20 × 1.5 

Type 4X/7/9 

Cast Alum 

Group B 

Cast Iron 

Type 4X/7/9 

Group B 

Cast Alum 

Dual Magnet 

Dry Contact 

Tall 

Tall w/ 

SPDT 

DPDT 

SPDT 

1 

Yellow 

Red 

Yellow 

Red 

Yellow 

Red 

GAF 

GAH 

GDF 

GDH 

— 

— 

GAM 

GAD 

GDM 

GDD 

— 

— 

GKM 

GKD 

GNM 

GND 

GUM 

GUD 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

GKW 

GKV 

GNW 

GNV 

— 

— 

— 

— 

— 

— 

— 

— 

Drain 

DPDT 

Yellow 

Red 

— 

— 

— 

— 

GXM 

GXD 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

Dual Magnet 

Dry Contact 

Tall 

Tall w/ 

SPDT 

DPDT 

SPDT 

1 

Yellow 

Red 

Yellow 

Red 

Yellow 

Red 

HAF 

HAH 

HDF 

HDH 

— 

— 

HAM 

HAD 

HDM 

HDD 

— 

— 

HKM 

HKD 

HNM 

HND 

HUM 

HUD 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

HKW 

HKV 

HNW 

HNV 

— 

— 

— 

— 

— 

— 

— 

— 

Drain 

DPDT 

Yellow 

Red 

— 

— 

— 

— 

HXM 

HXD 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

DC Voltage 

Dual Magnet 

Dry Contact 

Tall 

Tall w/ 

SPDT 

DPDT 

SPDT 

1 

Yellow 

Red 

Yellow 

Red 

Yellow 

Red 

IAF 

IAH 

IDF 

IDH 

— 

— 

IAM 

IAD 

IDM 

IDD 

— 

— 

IKM 

IKD 

INM 

IND 

IUM 

IUD 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

IKW 

IKV 

INW 

INV 

— 

— 

— 

— 

— 

— 

— 

— 

Drain 

DPDT 

Yellow 

Red 

— 

— 

— 

— 

IXM 

IXD 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

High Temp 

Mercury 

for B40 

Tall 

SPDT 

DPDT 

SPDT 

DPDT 

1 Yellow 

LAF 

LDF 

LBF 

LEF 

LAM 

LDM 

LBM 

LEM 

LKM 

LNM 

LLM 

LOM 

LAB 

LDB 

LBB 

LEB 

L2B 

L8B 

— 

— 

LKB 

LNB 

LLB 

LOB 

LKW 

LNW 

LLW 

LOW 

LKK 

LNK 

LLK 

LOK 

Short 

1 

Yellow 

Red 

Yellow 

MAE 

MAG 

MAF 

MAY 

MAR 

MAM 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

Red MAH MAD — — — — — — 

High Temp 

Mercury 

with 

Tall 

SPDT 

2 

Yellow 

Red 

R/B 

MBF 

MBH 

— 

MBM 

MBD 

MBE 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

Manual Reset* 

Yellow MCF MCM — — — — — — 

*All Housing 

on manual 

reset switches 

3 Red 

R/B/B 

MCH 

— 

MCD 

MCE 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

Type/NEMA 1 

only. Short 

Tall 

DPDT 

1 

2 

Yellow 

Red 

Yellow 

Red 

Yellow 

Red 

MDE 

MDG 

MDF 

MDH 

MEF 

MEH 

MDY 

MDR 

MDM 

MDD 

MEM 

MED 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

Mercury 

for 

C10/C15 

X-Tall 

X-Tall w/ 

Heater 

X-Tall w/ 

SPDT 

DPDT 

SPDT 

DPDT 

SPDT 

3 Yellow 

NCF 

NEF 

NHF 

NJF 

— 

NCM 

NEM 

NHM 

NJM 

— 

NMM 

NKM 

NRM 

NLM 

NWM 

NCB 

NEB 

NHB 

NJB 

— 

— 

— 

— 

— 

— 

NMB 

NKB 

NRB 

NLB 

NWB 

NMI 

NKI 

— 

— 

— 

NMN 

NKN 

— 

— 

— 

Drain DPDT — — NNM — — NNB — — 

Dry Contact 

for 

C10/C15 

X-Tall 

X-Tall w/ 

Heater 

X-Tall w/ 

SPDT 

DPDT 

SPDT 

DPDT 

SPDT 

3 Yellow 

OCF 

OEF 

OHF 

OJF 

— 

OCM 

OEM 

OHM 

OJM 

— 

OMM 

OKM 

ORM 

OLM 

OWM 

OCB 

OEB 

OHB 

OJB 

— 

— 

— 

— 

— 

— 

OMB 

OKB 

ORB 

OLB 

OWB 

OMI 

OKI 

— 

— 

— 

OMN 

OKN 

— 

— 

— 

Drain DPDT — — ONM — — ONB — — 





Type 

Housing 

Height 

& Options 


Contacts 


Set 

Points 

Magnet 

Dot Color 

Type 4 

Carbon 

Steel 

Type 4X 

Carbon 

Steel 

Type 7/9 

Cast Iron 

Type 4X 

Cast Alum 

1" NPT 

Type 4X 

Cast Alum 

M20 × 1.5 

Type 4X/7/9 

Cast Alum 

Group B 

Cast Iron 

Type 4X/7/9 

Group B 

Cast Alum 

Dry Contact 

for 

C10/C15 

X-Tall 

X-Tall w/ 

Heater 

X-Tall w/ 

SPDT 

DPDT 

SPDT 

DPDT 

SPDT 

3 Yellow 

QCF 

QEF 

QHF 

QJF 

— 

QCM 

QEM 

QHM 

QJM 

— 

QMM 

QKM 

QRM 

QLM 

QWM 

QCB 

QEB 

QHB 

QJB 

— 

— 

— 

— 

— 

— 

QMB 

QKB 

QRB 

QLB 

QWB 

QMI 

QKI 

— 

— 

— 

QMN 

QKN 

— 

— 

— 

Drain DPDT — — QNM — — QNB — — 

Dry Contact 

SPDT 

SAF SAM SKM SAB S2B SKB SKW SKK 

for B40 

DC Dry Contact 

Tall 

DPDT 

SPDT 

1 Yellow 

SDF 

SBF 

SDM 

SBM 

SNM 

SLM 

SDB 

SBB 

S8B 

S2R 

SNB 

SLB 

SNW 

SLW 

SNK 

SLK 

for B40 

DPDT SEF SEM SOM SEB S8R SOB SOW SOK 

Vibration 

Resistant 

Mercury 

For 

C10/C15 

X-Tall 

X-Tall w/ 

Heater 

X-Tall w/ 

Drain 

SPDT 

DPDT 

SPDT 

DPDT 

SPDT 

DPDT 

3 Yellow 

TCF 

TEF 

THF 

TJF 

— 

— 

TCM 

TEM 

THM 

TJM 

— 

— 

TMM 

TKM 

TRM 

TLM 

TWM 

TNM 

TCB 

TEB 

THB 

TJB 

— 

— 

— 

— 

— 

— 

— 

— 

TMB 

TKB 

TRB 

TLB 

TWB 

TNB 

TMI 

TKI 

— 

— 

— 

— 

TMN 

TKN 

— 

— 

— 

— 

Short 

1 

Yellow 

Red 

Yellow 

UAE 

UAG 

UAF 

UAY 

UAR 

UAM 

UKY 

UKR 

UKM 

UAQ 

UAP 

UAB 

U2Q 

U2P 

U2B 

UKQ 

UKP 

UKB 

— 

— 

UKW 

— 

— 

— 

Tall 

SPDT 

2 

Red 

Yellow 

Red 

UAH 

UBF 

UBH 

UAD 

UBM 

UBD 

UKD 

ULM 

ULD 

UAA 

UBB 

UBA 

U2A 

U4B 

U4A 

UKA 

ULB 

ULA 

— 

ULW 

— 

— 

— 

— 

3 

Yellow 

Red 

UCF 

UCH 

UCM 

UCD 

UMM 

UMD 

UCB 

UCA 

U6B 

U6A 

UMB 

UMA 

UMW 

— 

— 

— 

Dry 

Contact 

Short 

Tall 

DPDT 

1 

2 

Yellow 

Red 

Yellow 

Red 

Yellow 

Red 

UDE 

UDG 

UDF 

UDH 

UEF 

UEH 

UDY 

UDR 

UDM 

UDD 

UEM 

UED 

UNY 

UNR 

UNM 

UND 

UOM 

UOD 

UDQ 

UDP 

UDB 

UDA 

UEB 

UEA 

U8Q 

U8P 

U8B 

U8A 

U1B 

U1A 

UNQ 

UNP 

UNB 

UNA 

UOB 

UOA 

— 

— 

UNW 

— 

UOW 

— 

— 

— 

— 

— 

— 

— 

w/Gold Alloy 

Contacts 

Short w/ 

Drain 

1 

Yellow 

Red 

Yellow 

— 

— 

— 

— 

— 

— 

— 

— 

UUM 

— 

— 

— 

— 

— 

— 

UUQ 

— 

UUB 

— 

— 

— 

— 

— 

— 

Tall w/ 

Drain 

SPDT 

2 

Red 

Yellow 

Red 

— 

— 

— 

— 

— 

— 

UUD 

UVM 

UVD 

— 

— 

— 

— 

— 

— 

— 

UVB 

— 

— 

— 

— 

— 

— 

— 

3 

Yellow 

Red 

— 

— 

— 

— 

UWM 

UWD 

— 

— 

— 

— 

UWB 

— 

— 

— 

— 

— 

Short w/ 

Yellow — — — — — UXQ — — 

Drain 

Tall w/ 

DPDT 

1 

Red 

Yellow 

Red 

— 

— 

— 

— 

— 

— 

— 

UXM 

UXD 

— 

— 

— 

— 

— 

— 

— 

UXB 

— 

— 

— 

— 

— 

— 

— 

Drain 

2 

Yellow 

Red 

— 

— 

— 

— 

UYM 

UYD 

— 

— 

— 

— 

UYB 

— 

— 

— 

— 

— 

Short 

1 

Yellow 

Red 

Yellow 

WAE 

WAG 

WAF 

WAY 

WAR 

WAM 

WKY 

WKR 

WKM 

WAQ 

WAP 

WAB 

W2Q 

W2P 

W2B 

WKQ 

WKP 

WKB 

— 

— 

WKW 

WKS 

WKT 

WKK 

Hermetically 

Sealed 

Tall 

SPDT 

2 

Red 

Yellow 

Red 

WAH 

WBF 

WBH 

WAD 

WBM 

WBD 

WKD 

WLM 

WLD 

WAA 

WBB 

WBA 

W2A 

W4B 

W4A 

WKA 

WLB 

WLA 

— 

WLW 

— 

— 

WLK 

— 

Dry Contact 

3 

Yellow 

Red 

WCF 

WCH 

WCM 

WCD 

WMM 

WMD 

WCB 

WCA 

W6B 

W6A 

WMB 

WMA 

WMW 

— 

WMK 

— 

Short 

Tall 

DPDT 

1 

2 

Yellow 

Yellow 

Yellow 

WDE 

WDF 

WEF 

WDY 

WDM 

WEM 

WNY 

WNM 

WOM 

WDQ 

WDB 

WEB 

W8Q 

W8B 

W1B 

WNQ 

WNB 

WOB 

— 

WNW 

WOW 

WNS 

WNK 

WOK 


27



Type 

Hermetically 

Sealed 

Dry Contact 

Hermetically 

Sealed 

Dry Contact 

w/Gold 

Housing 

Height 

& Options 

Short w/ 

Drain 

Tall w/ 

Drain 

Short w/ 

Drain 

Tall w/ 

Drain 

Short 

Tall 

Short 

Tall 

Short w/ 

Drain 

Tall w/ 

Drain 


Contacts 

SPDT 

DPDT 

SPDT 

DPDT 

SPDT 

Set 

Points 

1 

2 

3 

Magnet 

Dot Color 

Type 4 

Carbon 

Steel 

Type 4X 

Carbon 

Steel 

Type 7/9 

Cast Iron 

Type 4X 

Cast Alum 

1" NPT 

Type 4X 

Cast Alum 

M20 × 1.5 

Type 4X/7/9 

Cast Alum 

Group B 

Cast Iron 

Type 4X/7/9 

Group B 

Cast Alum 

Yellow — — — — — WUQ — — 

Red — — — — — WUP — — 

Yellow — — WUM — — WUB — — 

Red — — WUD — — WUA — — 

Yellow — — WVM — — WVB — — 

Red — — WVD — — WVA — — 

Yellow — — WWM — — WWB — — 

Red — — WWD — — WWA — — 

1 

Yellow 

— 

— 

— 

— 

— 

WXM 

— 

— 

— 

— 

WXQ 

WXB 

— 

— 

— 

— 

2 — — WYM — — — — — 

Yellow XAE XAY XKY XAQ X2Q XKQ — XKS 

1 

Red 

Yellow 

XAG 

XAF 

XAR 

XAM 

XKR 

XKM 

XAP 

XAB 

X2P 

X2B 

XKP 

XKB 

— 

XKW 

XKT 

XKK 

Red XAH XAD XKD XAA X2A XKA — — 

2 

Yellow 

Red 

XBF 

XBH 

XBM 

XBD 

XLM 

XLD 

XBB 

XBA 

X4B 

X4A 

XLB 

XLA 

XLW 

— 

XLK 

— 

3 

Yellow 

Red 

XCF 

XCH 

XCM 

XCD 

XMM 

XMD 

XCB 

XCA 

X6B 

X6A 

XMB 

XMA 

XMW 

— 

XMK 

— 

1 

Yellow 

XDE 

XDF 

XDY 

XDM 

XNY 

XNM 

XDQ 

XDB 

X8Q 

X8B 

XNQ 

XNB 

— 

XNW 

XNS 

XNK 

2 XEF XEM XOM XEB X1B XOB XOW XOK 

Yellow — — — — — XUQ — — 

1 

Red 

Yellow 

— 

— 

— 

— 

— 

XUM 

— 

— 

— 

— 

XUP 

XUB 

— 

— 

— 

— 

Red — — XUD — — XUA — — 

2 

Yellow 

Red 

— 

— 

— 

— 

XVM 

XVD 

— 

— 

— 

— 

XVB 

XVA 

— 

— 

— 

— 

3 

Yellow 

Red 

— 

— 

— 

— 

XWM 

XWD 

— 

— 

— 

— 

XWB 

XWA 

— 

— 

— 

— 

Short w/ 

Drain 

Tall w/ 

DPDT 

1 

Yellow 

— 

— 

— 

— 

— 

XXM 

— 

— 

— 

— 

XXQ 

XXB 

— 

— 

— 

— 

Drain 

2 — — XYM — — X4B — — 

Short 

1 

Yellow 

Red 

Yellow 

2AE 

2AG 

2AF 

2AY 

2AR 

2AM 

2KY 

2KR 

2KM 

2AQ 

2AP 

2AB 

22Q 

22P 

22B 

2KQ 

2KP 

2KB 

— 

— 

2KW 

2KS 

2KT 

2KK 

Red 2AH 2AD 2KD 2AA 22A 2KA 2KV 2KJ 

High Temp 

Vibration 

Tall 

SPDT 

2 

Yellow 

Red 

R/B 

Yellow 

2BF 

2BH 

— 

2CF 

2BM 

2BD 

— 

2CM 

2LM 

2LD 

— 

2MM 

2BB 

2BA 

2BE 

2CB 

24B 

24A 

24E 

26B 

2LB 

2LA 

2LE 

2MB 

2LW 

2LV 

— 

2MW 

2LK 

2LJ 

2LG 

2MK 

Resistant 

3 Red 2CH 2CD 2MD 2CA 26A 2MA 2MV 2MJ 

Mercury 

R/B/B — — — 2CE 26E 2ME — 2MG 

Short 

Tall 

DPDT 

1 

2 

Yellow 

Red 

Yellow 

Red 

Yellow 

Red 

2DE 

2DG 

2DF 

2DH 

2EF 

2EH 

2DY 

2DR 

2DM 

2DD 

2EM 

2ED 

2NY 

2NR 

2NM 

2ND 

2OM 

2OD 

2DQ 

2DP 

2DB 

2DA 

2EB 

2EA 

28Q 

28P 

28B 

28A 

21B 

21A 

2NQ 

2NP 

2NB 

2NA 

2OB 

2OA 

— 

— 

2NW 

2NV 

2OW 

2OV 

2NS 

2NT 

2NK 

2NJ 

2OK 

2OJ 





Type 

Housing 

Height 

& Options 

Short w/ 

Drain 


Contacts 


Set 

Points 

Magnet 

Dot Color 

Type 4 

Carbon 

Steel 

Type 4X 

Carbon 

Steel 

Type 7/9 

Cast Iron 

Type 4X 

Cast Alum 

1" NPT 

Type 4X 

Cast Alum 

M20 × 1.5 

Type 4X/7/9 

Cast Alum 

Group B 

Cast Iron 

Type 4X/7/9 

Group B 

Cast Alum 

Yellow — — 2UY — — 2UQ — — 

1 

Red 

Yellow 

— 

— 

— 

— 

2UR 

2UM 

— 

— 

— 

— 

2UP 

2UB 

— 

— 

— 

— 

Red — — 2UD — — 2UA — — 

Tall w/ 

SPDT 

2 

Yellow 

Red 

— 

— 

— 

— 

2VM 

2VD 

— 

— 

— 

— 

2VB 

2VA 

— 

— 

— 

— 

Drain 

R/B — — — — — 2VE — — 

Yellow — — 2WM — — 2WB — — 

3 Red — — 2WD — — 2WA — — 

R/B/B — — — — — 2WE — — 

Short w/ 

Yellow — — 2XY — — 2XQ — — 

Drain 

Tall w/ 

DPDT 

1 

Red 

Yellow 

Red 

— 

— 

— 

— 

— 

— 

2XR 

2XM 

2XD 

— 

— 

— 

— 

— 

— 

2XP 

2XB 

2XA 

— 

— 

— 

— 

— 

— 

High Temp 

Vibration 

Drain 

2 

Yellow 

Red 

— 

— 

— 

— 

2YM 

2YD 

— 

— 

— 

— 

2YB 

2YA 

— 

— 

— 

— 

Resistant 

Mercury 

Short w/ 

Heater 

1 

Yellow 

Red 

Yellow 

2FE 

2FG 

2FF 

2FY 

2FR 

2FM 

2PY 

2PR 

2PM 

2FQ 

2FP 

2FB 

— 

— 

— 

2PQ 

2PP 

2PB 

— 

— 

— 

— 

— 

— 

Red 2FH 2FD 2PD 2FA — 2PA — — 

Tall w/ 

SPDT 

2 

Yellow 

Red 

2GF 

2GH 

2GM 

2GD 

2QM 

2QD 

2GB 

2GA 

— 

— 

2QB 

2QA 

— 

— 

— 

— 

Heater 

R/B — — — — — 2QE — — 

Yellow 2HF 2HM 2RM 2HB — 2RB — — 

3 Red 2HH 2HD 2RD 2HA — 2RA — — 

R/B/B — — — — — 2RE — — 

Short w/ 

Yellow 2IE 2IY 2SY 2IQ — 2SQ — — 

Heater 

Tall w/ 

DPDT 

1 

Red 

Yellow 

Red 

2IG 

2IF 

2IH 

2IR 

2IM 

2ID 

2SR 

2SM 

2SD 

2IP 

2IB 

2IA 

— 

— 

— 

2SP 

2SB 

2SA 

— 

— 

— 

— 

— 

— 

Heater 

2 

Yellow 

Red 

2JF 

2JH 

2JM 

2JD 

2TM 

2TD 

2JB 

2JA 

— 

— 

2TB 

2TA 

— 

— 

— 

— 

Short 

1 

Yellow 

Red 

Yellow 

3AE 

3AG 

3AF 

3AY 

3AR 

3AM 

3KY 

3KR 

3KM 

3AQ 

3AP 

3AB 

32Q 

32P 

32B 

3KQ 

3KP 

3KB 

— 

— 

3KW 

3KS 

3KT 

3KK 

Red 3AH 3AD 3KD 3AA 32A 3KA 3KV 3KJ 

Tall 

SPDT 

2 

Yellow 

Red 

R/B 

3BF 

3BH 

— 

3BM 

3BD 

— 

3LM 

3LD 

— 

3BB 

3BA 

3BE 

34B 

34A 

34E 

3LB 

3LA 

3LE 

3LW 

3LV 

— 

3LK 

3LJ 

3LG 

High Temp 

Yellow 3CF 3CM 3MM 3CB 36B 3MB 3MW 3MK 

Mercury 

3 Red 3CH 3CD 3MD 3CA 36A 3MA 3MV 3MJ 

R/B/B — — — 3CE 36E 3ME — 3MG 

Short 

Tall 

DPDT 

1 

2 

Yellow 

Red 

Yellow 

Red 

Yellow 

Red 

3DE 

3DG 

3DF 

3DH 

3EF 

3EH 

3DY 

3DR 

3DM 

3DD 

3EM 

3ED 

3NY 

3NR 

3NM 

3ND 

3OM 

3OD 

3DQ 

3DP 

3DB 

3DA 

3EB 

3EA 

38Q 

38P 

38B 

38A 

31B 

31A 

3NQ 

3NP 

3NB 

3NA 

3OB 

3OA 

— 

— 

3NW 

3NV 

3OW 

3OV 

3NS 

3NT 

3NK 

3NJ 

3OK 

3OJ 


29



Type 

Housing 

Height 

& Options 

Short w/ 

Drain 


Contacts 

Set 

Points 

Magnet 

Dot Color 

Type 4 

Carbon 

Steel 

Type 4X 

Carbon 

Steel 

Type 7/9 

Cast Iron 

Type 4X 

Cast Alum 

1" NPT 

Type 4X 

Cast Alum 

M20 × 1.5 

Type 4X/7/9 

Cast Alum 

Group B 

Cast Iron 

Type 4X/7/9 

Group B 

Cast Alum 

Yellow — — 3UY — — 3UQ — — 

1 

Red 

Yellow 

— 

— 

— 

— 

3UR 

3UM 

— 

— 

— 

— 

3UP 

3UB 

— 

— 

— 

— 

Red — — 3UD — — 3UA — — 

Tall w/ 

SPDT 

2 

Yellow 

Red 

— 

— 

— 

— 

3VM 

3VD 

— 

— 

— 

— 

3VB 

3VA 

— 

— 

— 

— 

Drain 

R/B — — — — — 3VE — — 

Yellow — — 3WM — — 3WB — — 

3 Red — — 3WD — — 3WA — — 

R/B/B — — — — — 3WE — — 

Short w/ 

Yellow — — 3XY — — 3XQ — — 

Drain 

Tall w/ 

DPDT 

1 

Red 

Yellow 

Red 

— 

— 

— 

— 

— 

— 

3XR 

3XM 

3XD 

— 

— 

— 

— 

— 

— 

3XP 

3XB 

3XA 

— 

— 

— 

— 

— 

— 

High Temp 

Drain 

2 

Yellow 

Red 

— 

— 

— 

— 

3YM 

3YD 

— 

— 

— 

— 

3YB 

3YA 

— 

— 

— 

— 

Mercury Short w/ 

Yellow 3FE 3FY 3PY 3FQ — 3PQ — — 

Heater 

1 

Red 

Yellow 

3FG 

3FF 

3FR 

3FM 

3PR 

3PM 

3FP 

3FB 

— 

— 

3PP 

3PB 

— 

— 

— 

— 

Red 3FH 3FD 3PD 3FA — 3PA — — 

Tall w/ 

SPDT 

2 

Yellow 

Red 

3GF 

3GH 

3GM 

3GD 

3QM 

3QD 

3GB 

3GA 

— 

— 

3QB 

3QA 

— 

— 

— 

— 

Heater 

R/B — — — — — 3QE — — 

Yellow 3HF 3HM 3RM 3HB — 3RB — — 

3 Red 3HH 3HD 3RD 3HA — 3RA — — 

R/B/B — — — — — 3RE — — 

Short w/ 

Yellow 3IE 3IY 3SY 3IQ — 3SQ — — 

Heater 

Tall w/ 

DPDT 

1 

Red 

Yellow 

Red 

3IG 

3IF 

3IH 

3IR 

3IM 

3ID 

3SR 

3SM 

3SD 

3IP 

3IB 

3IA 

— 

— 

— 

3SP 

3SB 

3SA 

— 

— 

— 

— 

— 

— 

Heater 

2 

Yellow 

Red 

3JF 

3JH 

3JM 

3JD 

3TM 

3TD 

3JB 

3JA 

— 

— 

3TB 

3TA 

— 

— 

— 

— 



9.2 ATEX Enclosure Codes 


Type 

Housing 

Height 

& Options 


Contacts 


Set 

Points 

Magnet 

Dot Color 

ATEX XP 

Cast Iron 

3/4" NPT 

ATEX XP 

Cast Iron 

M20 × 1.5 

ATEX XP 

Cast Alum 

1" NPT 

ATEX XP 

Cast Alum 

M20 × 1.5 

ATEX IS 

Cast Alum 

1" NPT 

ATEX IS 

Cast Alum 

M20 × 1.5 

Short 

1 

Yellow 

Red 

Yellow 

— 

— 

AU5 

— 

— 

AK5 

AA9 

AAC 

AC9 

AH9 

AHC 

AK9 

— 

— 

— 

— 

— 

— 

Tall 

SPDT 

2 

Red 

Yellow 

Red 

AU7 

AV5 

AV7 

AK7 

AL5 

AL7 

ACC 

AD9 

ADC 

AKC 

AL9 

ALC 

— 

— 

— 

— 

— 

— 

Mercury 

3 

Yellow 

Red 

A75 

A77 

A65 

A67 

AE9 

AEC 

AM9 

AMC 

— 

— 

— 

— 

Short 

Tall 

DPDT 

1 

2 

Yellow 

Red 

Yellow 

Red 

Yellow 

Red 

— 

— 

AW5 

AW7 

AY5 

AY7 

— 

— 

AD5 

AD7 

AO5 

AO7 

AB9 

ABC 

AF9 

AFC 

AG9 

AGC 

AJ9 

AJC 

AN9 

ANC 

AP9 

APC 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

Short 

1 

Yellow 

Red 

Yellow 

— 

— 

BU5 

— 

— 

BK5 

BA9 

BAC 

BC9 

BH9 

BHC 

BK9 

— 

— 

— 

— 

— 

— 

Tall 

SPDT 

2 

Red 

Yellow 

Red 

BU7 

BV5 

BV7 

BK7 

BL5 

BL7 

BCC 

BD9 

BDC 

BKC 

BL9 

BLC 

— 

— 

— 

— 

— 

— 

Dry Contact 

3 

Yellow 

Red 

B75 

B77 

B65 

B67 

BE9 

BEC 

BM9 

BMC 

— 

— 

— 

— 

Short 

Tall 

DPDT 

1 

2 

Yellow 

Red 

Yellow 

Red 

Yellow 

Red 

— 

— 

BW5 

BW7 

BY5 

BY7 

— 

— 

BD5 

BD7 

BO5 

BO7 

BB9 

BBC 

BF9 

BFC 

BG9 

BGC 

BJ9 

BJC 

BN9 

BNC 

BP9 

BPC 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

Short 

1 

Yellow 

Red 

Yellow 

— 

— 

CU5 

— 

— 

CK5 

CA9 

CAC 

CC9 

CH9 

CHC 

CK9 

CAS 

CAL 

CAT 

C2S 

C2L 

C2T 

Tall 

SPDT 

2 

Red 

Yellow 

Red 

CU7 

CV5 

CV7 

CK7 

CL5 

CL7 

CCC 

CD9 

CDC 

CKC 

CL9 

CLC 

CAX 

CBT 

CBX 

C2X 

C4T 

C4X 

Dry Contact 

3 

Yellow 

Red 

C75 

C77 

C65 

C67 

CE9 

CEC 

CM9 

CMC 

— 

— 

— 

— 

Short 

Tall 

DPDT 

1 

2 

Yellow 

Red 

Yellow 

Red 

Yellow 

Red 

— 

— 

CW5 

CW7 

CY5 

CY7 

— 

— 

CD5 

CD7 

CO5 

CO7 

CB9 

CBC 

CF9 

CFC 

CG9 

CGC 

CJ9 

CJC 

CN9 

CNC 

CP9 

CPC 

CDS 

CDL 

CDT 

CDX 

CET 

CEX 

C8S 

C8L 

C8T 

C8X 

C1T 

C1X 

DC Voltage 

Dry Contact 

Short 

Tall 

Short 

Tall 

SPDT 

DPDT 

1 

2 

3 

1 

2 

Yellow 

Yellow 

Yellow 

Yellow 

Yellow 

Yellow 

Yellow 

— 

DU5 

DV5 

D75 

— 

DW5 

DY5 

— 

DK5 

DL5 

D65 

— 

DD5 

DO5 

DA9 

DC9 

DD9 

DE9 

DB9 

DF9 

DG9 

DH9 

DK9 

DL9 

DM9 

DJ9 

DN9 

DP9 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

Vibration 

Resistant 

Mercury 

Short 

Tall 

SPDT 

1 

2 

Yellow 

Red 

Yellow 

Red 

Yellow 

Red 

— 

— 

EU5 

EU7 

EV5 

EV7 

— 

— 

EK5 

EK7 

EL5 

EL7 

EA9 

EAC 

EC9 

ECC 

ED9 

EDC 

EH9 

EHC 

EK9 

EKC 

EL9 

ELC 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

3 

Yellow 

Red 

E75 

E77 

E65 

E67 

EE9 

EEC 

EM9 

EMC 

— 

— 

— 

— 


31



Type 

Housing 

Height 

& Options 


Contacts 

Set 

Points 

Magnet 

Dot Color 

ATEX XP 

Cast Iron 

3/4" NPT 

ATEX XP 

Cast Iron 

M20 × 1.5 

ATEX XP 

Cast Alum 

1" NPT 

ATEX XP 

Cast Alum 

M20 × 1.5 

ATEX IS 

Cast Alum 

1" NPT 

ATEX IS 

Cast Alum 

M20 × 1.5 

Vibration 

Resistant 

Mercury 

Short 

Tall 

DPDT 

1 

2 

Yellow 

Red 

Yellow 

Red 

Yellow 

Red 

— 

— 

EW5 

EW7 

EY5 

EY7 

— 

— 

ED5 

ED7 

EO5 

EO7 

EB9 

EBC 

EF9 

EFC 

EG9 

EGC 

EJ9 

EJC 

EN9 

ENC 

EP9 

EPC 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

Short 

1 

Yellow 

Red 

Yellow 

— 

— 

FU5 

— 

— 

FK5 

FA9 

FAC 

FC9 

FH9 

FHC 

FK9 

— 

— 

— 

— 

— 

— 

Tall 

SPDT 

2 

Red 

Yellow 

Red 

FU7 

FV5 

FV7 

FK7 

FL5 

FL7 

FCC 

FD9 

FDC 

FKC 

FL9 

FLC 

— 

— 

— 

— 

— 

— 

Herm. Sealed 

Dry Contact 

3 

Yellow 

Red 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

Short 

Tall 

DPDT 

1 

2 

Yellow 

Red 

Yellow 

Red 

Yellow 

Red 

— 

— 

FW5 

FW7 

FY5 

FY7 

— 

— 

FD5 

FD7 

FO5 

FO7 

FB9 

FBC 

FF9 

FFC 

FG9 

FGC 

FJ9 

FJC 

FN9 

FNC 

FP9 

FPC 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

High Temp 

Mercury 

for B40 

Tall 

SPDT 

DPDT 

SPDT 

DPDT 

1 Yellow 

— 

— 

— 

— 

— 

— 

— 

— 

LC9 

LF9 

LA9 

LB9 

LK9 

LN9 

LH9 

LJ9 

— 

— 

— 

— 

— 

— 

— 

— 

Dry Contact 

SPDT 

— — SA9 SH9 — — 

for B40 

DC Dry Contact 

Tall 

DPDT 

SPDT 

1 Yellow 

— 

— 

— 

— 

SB9 

SC9 

SJ9 

SK9 

— 

— 

— 

— 

for B40 

DPDT — — SF9 SN9 — — 

Short 

1 

Yellow 

Red 

Yellow 

— 

— 

UU5 

— 

— 

UK5 

UA9 

UAC 

UC9 

UH9 

UHC 

UK9 

UAS 

UAL 

UAT 

U2S 

U2L 

U2T 

Dry 

Tall 

SPDT 

2 

Red 

Yellow 

Red 

UU7 

UV5 

UV7 

UK7 

UL5 

UL7 

UCC 

UD9 

UDC 

UKC 

UL9 

ULC 

UAX 

UBT 

UBX 

U2X 

U4T 

U4X 

Contact 

w/Gold Alloy 

3 

Yellow 

Red 

U75 

U77 

U65 

U67 

UE9 

UEC 

UM9 

UMC 

UCT 

UCX 

ULT 

ULX 

Contacts 

Short 

Tall 

DPDT 

1 

2 

Yellow 

Red 

Yellow 

Red 

Yellow 

Red 

— 

— 

UW5 

UW7 

UY5 

UY7 

— 

— 

UD5 

UD7 

UO5 

UO7 

UB9 

UBC 

UF9 

UFC 

UG9 

UGC 

UJ9 

UJC 

UN9 

UNC 

UP9 

UPC 

UDS 

UDL 

UDT 

UDX 

UET 

UEX 

U8S 

U8L 

U8T 

U8X 

U1T 

U1X 





Type 

Housing 

Height 

& Options 


Contacts 


Set 

Points 

Magnet 

Dot Color 

ATEX XP 

Cast Iron 

3/4" NPT 

ATEX XP 

Cast Iron 

M20 × 1.5 

ATEX XP 

Cast Alum 

1" NPT 

ATEX XP 

Cast Alum 

M20 × 1.5 

ATEX IS 

Cast Alum 

1" NPT 

ATEX IS 

Cast Alum 

M20 × 1.5 

Short 

1 

Yellow 

Red 

Yellow 

— 

— 

WU5 

— 

— 

WK5 

WA9 

WAC 

WC9 

WH9 

WHC 

WK9 

WAS 

WAL 

WAT 

W2S 

W2L 

W2T 

Herm. Sealed 

Dry Contact 

Tall 

SPDT 

2 

3 

Red 

Yellow 

Red 

Yellow 

Red 

WU7 

WV5 

WV7 

W75 

W77 

WK7 

WL5 

WL7 

W65 

W67 

WCC 

WD9 

WDC 

WE9 

WEC 

WKC 

WL9 

WLC 

WM9 

WMC 

WAX 

WBT 

WBX 

— 

— 

W2X 

W4T 

W4X 

— 

— 

Short 

Tall 

DPDT 

1 

2 

Yellow 

Yellow 

Yellow 

— 

WW5 

WY5 

— 

WD5 

WO5 

WB9 

WF9 

WG9 

WJ9 

WN9 

WP9 

WDS 

WDT 

WET 

W8S 

W8T 

W1T 

Short 

1 

Yellow 

Red 

Yellow 

— 

— 

XU5 

— 

— 

XK5 

XA9 

XAC 

XC9 

XH9 

XHC 

XK9 

XAS 

XAL 

XAT 

X2S 

X2L 

X2T 

Herm. Sealed 

Dry Contact 

Tall 

SPDT 

2 

Red 

Yellow 

Red 

XU7 

XV5 

XV7 

XK7 

XL5 

XL7 

XCC 

XD9 

XDC 

XKC 

XL9 

XLC 

XAX 

XBT 

XBX 

X2X 

X4T 

X4X 

w/ Gold 

3 

Yellow 

Red 

X75 

X77 

X65 

X67 

XE9 

XEC 

XM9 

XMC 

— 

— 

— 

— 

Short 

Tall 

DPDT 

1 

2 

Yellow 

Yellow 

Yellow 

— 

XW5 

XY5 

— 

XD5 

XO5 

XB9 

XF9 

XG9 

XJ9 

XN9 

XP9 

XDS 

XDT 

XET 

X8S 

X8T 

X1T 

Short 

1 

Yellow 

Red 

Yellow 

— 

— 

2U5 

— 

— 

2K5 

2A9 

2AC 

2C9 

2H9 

2HC 

2K9 

— 

— 

— 

— 

— 

— 

Red 2U7 2K7 2CC 2KC — — 

High Temp 

Tall 

SPDT 

2 

Yellow 

Red 

R/B 

2V5 

— 

2V7 

2L5 

— 

2L7 

2D9 

2DC 

2DE 

2L9 

2LC 

29E 

— 

— 

— 

— 

— 

— 

Vibration 

Yellow 275 265 2E9 2M9 — — 

Resistant 

3 Red — — 2EC 2MC — — 

Mercury 

R/B/B 277 267 2EE 28E — — 

Short 

Tall 

DPDT 

1 

2 

Yellow 

Red 

Yellow 

Red 

Yellow 

Red 

— 

— 

2W5 

2W7 

2Y5 

2Y7 

— 

— 

2D5 

2D7 

2O5 

2O7 

2B9 

2BC 

2F9 

2FC 

2G9 

2GC 

2J9 

2JC 

2N9 

2NC 

2P9 

2PC 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

Short 

1 

Yellow 

Red 

Yellow 

— 

— 

3U5 

— 

— 

3K5 

3A9 

3AC 

3C9 

3H9 

3HC 

3K9 

— 

— 

— 

— 

— 

— 

Red 3U7 3K7 3CC 3KC — — 

Tall 

SPDT 

2 

Yellow 

Red 

R/B 

3V5 

— 

3V7 

3L5 

— 

3L7 

3D9 

3DC 

3DE 

3L9 

3LC 

39E 

— 

— 

— 

— 

— 

— 

High Temp 

Yellow 375 365 3E9 3M9 — — 

Mercury 

3 Red — — 3EC 3MC — — 

R/B/B 377 367 3EE 38E — — 

Short 

Tall 

DPDT 

1 

2 

Yellow 

Red 

Yellow 

Red 

Yellow 

Red 

— 

— 

3W5 

3W7 

3Y5 

3Y7 

— 

— 

3D5 

3D7 

3O5 

3O7 

3B9 

3BC 

3F9 

3FC 

3G9 

3GC 

3J9 

3JC 

3N9 

3NC 

3P9 

3PC 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 


33

NOTES 


NOTES 


35

Service Policy 

Owners of Magnetrol may request the return of a control 

or any part of a control for complete rebuilding or replacement. 

They will be rebuilt or replaced promptly. Controls 

returned under our service policy must be returned by 

Prepaid transportation. Magnetrol will repair or replace 

the control at no cost to the purchaser (or owner) other 

than transportation if: 

1. Returned within the warranty period; and 

2. The factory inspection finds the cause of the claim 

to be covered under the warranty. 

If the trouble is the result of conditions beyond our control; 

or, is NOT covered by the warranty, there will be 

charges for labor and the parts required to rebuild or 

replace the equipment. 

In some cases it may be expedient to ship replacement 

parts; or, in extreme cases a complete new control, to 

replace the original equipment before it is returned. If 

this is desired, notify the factory of both the model and 

serial numbers of the control to be replaced. In such 

cases, credit for the materials returned will be determined 

on the basis of the applicability of our warranty. 

No claims for misapplication, labor, direct or consequential 

damage will be allowed. 

ASSURED QUALITY & SERVICE COST LESS 

5300 Belmont Road • Downers Grove, Illinois 60515-4499 • 630-969-4000 • Fax 630-969-9489 • www.magnetrol.com 

145 Jardin Drive, Units 1 & 2 • Concord, Ontario Canada L4K 1X7 • 905-738-9600 • Fax 905-738-1306 

Heikensstraat 6 • B 9240 Zele, Belgium • 052 45.11.11 • Fax 052 45.09.93 

Regent Business Ctr., Jubilee Rd. • Burgess Hill, Sussex RH15 9TL U.K. • 01444-871313 • Fax 01444-871317 

Copyright © 2012 Magnetrol International, Incorporated. All rights reserved. Printed in the USA. 

Return Material Procedure 

So that we may efficiently process any materials that are 

returned, it is essential that a “Return Material 

Authorization” (RMA) number be obtained from the 

factory, prior to the material’s return. This is available 

through your Magnetrol local representative or 

by contacting the factory. Please supply the following 

information: 

1. Company Name 

2. Description of Material 

3. Serial Number 

4. Reason for Return 

5. Application 

Any unit that was used in a process must be properly 

cleaned in accordance with OSHA standards, before it is 

returned to the factory. 

A Material Safety Data Sheet (MSDS) must accompany 

material that was used in any media. 

All shipments returned to the factory must be by prepaid 

transportation. 

All replacements will be shipped F.O.B. factory. 

BULLETIN: 42-683.16 

EFFECTIVE: July 2012 

SUPERSEDES: June 2011

Electric Switch Mechanisms - Magnetrol International

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