Siemens UL 489 User manual

Low Voltage Insulated Case Circuit Breaker
UL489 Circuit Breaker
DANGER
Hazardous voltage.
Will cause death, serious personal injury, or equipment damage.
Turn off and lock out all power supplying this equipment before working on this device.
3ZX1812-0WL20-1AN2923 99994 174
Operating Instructions Catalog No.: CBIM-01001-0119

NOTE
These instructions do not purport to cover all details or variations in equipment, or to provide for every possible contingency to be met in 
connection with installation, operation or maintenance. Should further information be desired or should particular problems arise, which are
not covered sufficiently for the purchaser’s purposes, the matter should be referred to the local Siemens sales office. The contents of this
instruction manual shall not become part of or modify any prior or existing agreement, commitment or relationship. The sales contract contains
the entire obligation of Siemens. The warranty contained in the contract between the parties is the sole warranty of Siemens. Any statements
contained herein do not create new warranties or modify the existing warranty.

TRADEMARKS
Unless otherwise noted, all names identified by ® are registered trademarks of Siemens AG or Siemens Industry, Inc. The remaining 
trademarks in this publication may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Symbols
Visual examination
Hook
Slotted-type screwdriver
Cruciform screwdriver
Philips (PH), PoziDriv (PZ)
Torx screwdriver (T)
Hex socket screwdriver
Open end wrench
Tightening torque
Cable tie
Add in writing
First step of action sequence
10 Nm 89 lb-in
1

I
1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Circuit Breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Cradle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
2 Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Circuit breaker frame accessory label . . . . . . . . . . . . . . . 2-1
Circuit breaker frame type label . . . . . . . . . . . . . . . . . . . . 2-1
Frame designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Trip unit designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Rating Plug label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Cradle type label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
3 Standard specifications . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
4 Packing and Lifting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Lifting with a crane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Lifting with a Lifting Bar Assembly . . . . . . . . . . . . . . . . . . 4-3
Lifting bar assembly (3-pole) . . . . . . . . . . . . . . . . . . . . 4-3
Lifting the circuit breaker . . . . . . . . . . . . . . . . . . . . . . . 4-4
5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Mounting position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Mounting on horizontal surface - 
Mounting tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Cubicle and ventilation . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Main terminal connections . . . . . . . . . . . . . . . . . . . . . . . 5-10
Cradle connections . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
Horizontal connections for fixed mount breakers . . . . 5-10
Vertical connections for fixed mount circuit breakers . 5-11
Front connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17
Wire connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24
Bus connections to the cradle . . . . . . . . . . . . . . . . . . . . 5-26
Secondary wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-27
Breaker Secondary Disconnects . . . . . . . . . . . . . . . . 5-28
Cradle Secondary Disconnect Blocks . . . . . . . . . . . . 5-29
Secondary disconnect terminal blocks . . . . . . . . . . . . 5-30
Wiring in cradle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-32
Catalog numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-33
6 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Preparation of draw-out circuit breaker . . . . . . . . . . . . . . 6-1
Inserting the circuit breaker into the cradle . . . . . . . . . 6-1
Positions of the circuit breaker in the cradle . . . . . . . . . 6-2
Unlocking the racking handle /
withdrawing the racking handle . . . . . . . . . . . . . . . . . . 6-3
Racking circuit breaker into connected position . . . . . . 6-3
Inserting racking handle . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Charge the closing spring . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Check list for commissioning . . . . . . . . . . . . . . . . . . . . . . 6-6
Closing the circuit breaker . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Opening the circuit breaker . . . . . . . . . . . . . . . . . . . . . . . 6-7
Tripping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Reclosing a circuit breaker tripped by the trip unit . . . . . . 6-9
Removing from service . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
7 Frame sizes / dimension drawings . . . . . . . . . . . . . . . . 7-1
Frame size I, fixed-mounted version . . . . . . . . . . . . . . . . .7-1
Frame size II, fixed-mounted version . . . . . . . . . . . . . . . . 7-6
Frame size II, 3000 A . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
Frame size III, fixed-mounted version . . . . . . . . . . . . . . . 7-10
Door cut-outs, fixed-mounted circuit breaker . . . . . . . . .7-14
Frame size I, draw-out version . . . . . . . . . . . . . . . . . . . . 7-16
Frame size II, draw-out version . . . . . . . . . . . . . . . . . . . . 7-21
Frame size III, draw-out version . . . . . . . . . . . . . . . . . . . 7-25
Door cut-outs for draw-out circuit breakers . . . . . . . . . . .7-28
Frame size II / III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-29
External sensor for neutral conductor . . . . . . . . . . . . . . . 7-30
Further dimension drawings . . . . . . . . . . . . . . . . . . . . . .7-32
8 Circuit diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Terminal assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Auxiliary switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Shunt Trip, Undervoltage Trip / Electrical closing lockout . 8-4
Closing Coil / Electrical CLOSE . . . . . . . . . . . . . . . . . . . . 8-5
Motor-operated mechanism . . . . . . . . . . . . . . . . . . . . . . . 8-6
Remote Bell Alarm Reset . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
Trip unit circuitry for ETU745-776 . . . . . . . . . . . . . . . . . . .8-7
With Breaker Status Sensor (BSS) 
and metering module . . . . . . . . . . . . . . . . . . . . . . . . . . .8-7
Metering module only . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8
Breaker Status Sensor (BSS) only . . . . . . . . . . . . . . . . 8-9
9 Electronic components . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
Trip units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
Overview of function . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
Trip unit ETU745 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2
Trip unit ETU776 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7
Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-9
Protective functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11
ETU displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-17
Rating Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-43
Ground-fault protection modules . . . . . . . . . . . . . . . . . 9-44
Replace the trip unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-49
Internal trip unit self-test on
the overcurrent tripping function . . . . . . . . . . . . . . . . .9-51
Sealing and locking device . . . . . . . . . . . . . . . . . . . . . 9-53
CubicleBUS Modules . . . . . . . . . . . . . . . . . . . . . . . . . . .9-54
System architecture . . . . . . . . . . . . . . . . . . . . . . . . . . 9-54
Internal modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-55
External CublicleBUS modules . . . . . . . . . . . . . . . . .9-83
External sensor for neutral conductor . . . . . . . . . . . . . 9-97
External voltage supply . . . . . . . . . . . . . . . . . . . . . . . . . .9-98
Handheld test device . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-99
View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-99
Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-99
Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-100
Voltage supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-100
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-100
Finishing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-103
Catalog numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-103
Contents

II
10 Reset the reclosing lockout and the Bell Alarm . . . . 10-1
Resetting the Bell Alarm . . . . . . . . . . . . . . . . . . . . . . . . 10-1
Resetting the Bell Alarm with reclosing lockout (optional) 10-2
Field Installation of a reclosing lockout . . . . . . . . . . . . . 10-3
Removing the automatic reset mechanism . . . . . . . . 10-4
Installing the remote Bell Alarm reset . . . . . . . . . . . . . . 10-5
Mounting remote reset coil and cut-off switch . . . . . . 10-5
Connecting wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-6
Function test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-7
Updating the options label . . . . . . . . . . . . . . . . . . . . . 10-7
11 Shunt Trip / Closing Coil / Undervoltage release . . . 11-1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1
Installing shunt trips, closing coils, and undervoltage devices
11-2
Installing optional signaling switches on shunt trips, closing
coils, and undervoltage devices . . . . . . . . . . . . . . . . . . . 11-3
Setting delay times on undervoltage release . . . . . . . . . 11-3
Field Installation of a cut-off switch for shunt
trips and closing coils . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-4
Mechanical function test . . . . . . . . . . . . . . . . . . . . . . . . 11-6
Connecting wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-6
Final tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-7
Electrical function test . . . . . . . . . . . . . . . . . . . . . . . . . . 11-7
Updating the options label . . . . . . . . . . . . . . . . . . . . . . . 11-9
12 Auxiliary and control switches . . . . . . . . . . . . . . . . . . 12-1
Installing internal auxiliary switches S1 - S4 . . . . . . . . . 12-2
Installing the "Ready-to-close" switch S20 . . . . . . . . . . . 12-3
Trip Signaling Switches . . . . . . . . . . . . . . . . . . . . . . . . . 12-4
Trip Signaling Switches S13, S24, and S26 . . . . . . . . 12-5
Control switches - Connecting wires . . . . . . . . . . . . . . . 12-6
Communication switches . . . . . . . . . . . . . . . . . . . . . . . . 12-6
Connecting secondary wiring . . . . . . . . . . . . . . . . . . . . . 12-6
Updating the options label . . . . . . . . . . . . . . . . . . . . . . . 12-6
Mechanism Operated Contacts (MOC) . . . . . . . . . . . . . 12-7
MOC Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-8
MOC Installation Instructions . . . . . . . . . . . . . . . . . . . 12-8
Order numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-13
Combination of MOC and
mutual mechanical interlocking module . . . . . . . . . . 12-14
Mounting of MOC and mutual mechanical
interlocking module on the cradle . . . . . . . . . . . . . . 12-14
13 Motor-operated mechanism . . . . . . . . . . . . . . . . . . . . 13-1
Installing the motor operator . . . . . . . . . . . . . . . . . . . . . 13-1
Optional motor disconnect switch on the front panel . . . 13-3
Updating the options label . . . . . . . . . . . . . . . . . . . . . . . 13-4
14 Indicators and operating elements . . . . . . . . . . . . . . . 14-1
Limiting Access to OPEN/CLOSE Buttons . . . . . . . . . . . 14-1
EMERGENCY OPEN button . . . . . . . . . . . . . . . . . . . . . 14-3
Operations counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-4
15 Locking devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-1
Key Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-1
Breaker mounted key lock . . . . . . . . . . . . . . . . . . . . . . 15-2
Cradle mounted key lock . . . . . . . . . . . . . . . . . . . . . . . 15-4
Installing racking handle key lock . . . . . . . . . . . . . . . . 15-9
Installing a Bell Alarm cover key lock . . . . . . . . . . . . 15-14
Padlocking provisions . . . . . . . . . . . . . . . . . . . . . . . . . . 15-15
Padlock locking the breaker OPEN . . . . . . . . . . . . . . 15-16
Optional: Intalling padlocks . . . . . . . . . . . . . . . . . . . . 15-18
Padlock Locking device for guide rails . . . . . . . . . . . 15-19
Padlock Locking device for racking handle . . . . . . . . 15-19
Padlock Locking device for spring charging lever . . . 15-19
CLOSE/OPEN padlock kit . . . . . . . . . . . . . . . . . . . . . 15-21
16 Sealing covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16-1
17 Mechanical interlocks . . . . . . . . . . . . . . . . . . . . . . . . . . 17-1
Field installation of CLOSE / OPEN buttons blocking device
17-2
Cubicle door interlock . . . . . . . . . . . . . . . . . . . . . . . . . . .17-3
Installing the interlock mechanism to the cradle . . . . . 17-4
Cubicle door interlock drill pattern . . . . . . . . . . . . . . . .17-8
Installing catch on the cubicle door . . . . . . . . . . . . . . 17-10
Function check . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17-10
Interlock to prevent racking with cubicle door open . . . 17-11
Coding between circuit breaker and cradle . . . . . . . . . .17-12
18 Additional options for the cradle . . . . . . . . . . . . . . . . .18-1
Shutter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18-1
Field installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18-2
Catalog numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-4
Truck Operated Contacts - TOC (Cradle Accessory) . . .18-5
19 Mechanical circuit breaker interlocking . . . . . . . . . . . 19-1
Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-1
General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-2
Mechanical interlocking two sources (open transition) 19-3
Mechanical interlocking two
sources with a tie circuit breaker (open transition) . . . 19-4
Mechanical interlocking feeder circuit breakers
(single load, open transition) . . . . . . . . . . . . . . . . . . . .19-5
Mechanical interlocking three sources
(open transition to standby system) . . . . . . . . . . . . . . . 19-6
Mechanical interlocking source and tie circuit breaker
(open transition to standby system) . . . . . . . . . . . . . . . 19-7
Installing interlocking module . . . . . . . . . . . . . . . . . . . . . 19-8
Installing intermediate shaft and coupling . . . . . . . . . . 19-8
Fitting interlocking module . . . . . . . . . . . . . . . . . . . . .19-11
Mounting the Bowden cables . . . . . . . . . . . . . . . . . .19-12
Function check . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19-14
20 Phase barriers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-1
21 Arc chute covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21-1
Field installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21-1
Catalog numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21-4
22 Door sealing frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-1

III
23 Plexiglas breaker cover . . . . . . . . . . . . . . . . . . . . . . . . 23-1
24 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1
Preparation for maintenance . . . . . . . . . . . . . . . . . . . . . 24-2
Opening the circuit breaker and
discharging the closing spring . . . . . . . . . . . . . . . . . . 24-2
Removing the circuit breaker from the cradle . . . . . . . 24-3
Changing front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-4
Removing front panel . . . . . . . . . . . . . . . . . . . . . . . . . 24-4
Reinstalling the front panel . . . . . . . . . . . . . . . . . . . . . 24-4
Checking arc chutes . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-5
Removing arc chutes . . . . . . . . . . . . . . . . . . . . . . . . . 24-6
Visual inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-6
Installing arc chutes . . . . . . . . . . . . . . . . . . . . . . . . . . 24-7
Inspection of arc chute covers . . . . . . . . . . . . . . . . . . . . 24-8
Checking contact erosion . . . . . . . . . . . . . . . . . . . . . . . . 24-9
Exchanging the primary disconnects . . . . . . . . . . . . . . 24-11
Exchanging the finger cluster . . . . . . . . . . . . . . . . . . 24-11
Catalog numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-13
Exchanging the stab tip . . . . . . . . . . . . . . . . . . . . . . .24-14
Catalog numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-15
Cleaning and greasing the circuit breaker . . . . . . . . . . .24-16
Cleaning and greasing the cradle . . . . . . . . . . . . . . . . . 24-16
25 Primary injection testing . . . . . . . . . . . . . . . . . . . . . . .25-1
General Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-2
Primary Injection Phase Current Testing . . . . . . . . . . . . . 25-4
Primary Injection Ground Fault Current Testing . . . . . . . 25-5
Achieving Correct External Neutral Sensor Polarity . . . .25-7
26 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26-1
Low-voltage circuit breakers disposal . . . . . . . . . . . . . . . 26-1
27 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-1
28 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-1
29 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29-1
30 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30-1

1 – 1
1 Overview
1.1 Circuit Breaker
(1) Arc chute (page 24-5)
(2) Carrying handle
(3) Identification tags
(4) Motor disconnect switch (option) (page 13-3)
(5) Circuit breaker type label (page 2-1)
(6) Spring charge indicator (page 6-7)
(7) Mechanical "CLOSE" button
(8) Rated current value
(9) Racking pictogram
(10) Make-break operations counter (option)
(11) Spring charging lever (page 6-4)
(12) Racking handle
(13) Racking shaft
(14) Options label (page 2-1)
(15) Grounding terminal
(16) Position indicator (page 6-2)
(17) Table for ground-fault protection (page 9-12)
(18) Key lock for racking handle
(19) Mechanical release of racking handle (option)
(20) Trip unit (page 9-1)
(21) Rating Plug
(22) "OPEN" button or 
"EMERGENCY OPEN" mushroom pushbutton (option)
(23) "Ready-to-close" indicator (page 6-7)
(24) Circuit breaker OPEN / CLOSED indicator (page 6-7)
(25) Tripped indicator (reset button) (page 6-9)
(26) Locking device "lock OPEN" (option)
(27) Front panel
(28) Secondary Disconnects

1 – 2
1.1 Cradle
(with optional accessories)
(1) Arc chute cover (option)
(2) Hole for crane hook
(3) Arc vent openings
(4) Shutter (option)
(5) Locking device shutter (standard for shutters)
(6) Mutual mechanical circuit breaker interlocking (option)
(7) Locking provision for guide rail
(8) Door interlock (option)
(9) Locking device in OPEN position (option)
(10) Cradle mounted locking device against closing the circuit breaker in disconnect position (option)
(11) Shutter operating device
(12) Rejection feature
(13) Option-related coding
(14) Secondary disconnects
(9)
(13)
(11)
(5)
(12)
(8)
(14)
(1)
(10) (7)
(4)
(6)
(7)
(3)

2 – 1
2 Labels
2.1 Circuit breaker frame accessory label
(with terminal designations)
2.2 Circuit breaker frame type label
A Circuit breaker
B Non-automatic switch
(1) UL-Mark (for circuit switch applied by a white sticker, within the shown frame)
(2) Maximum rated current
(3) Rated operating voltages
(4) Rated frequency
(5) Rated short-circuit breaking capacity
(6) Necessary overcurrent protection
(7) Enclosure size
(8) Installation space
(9) Main connections
(10) Switch mark
Siemens Industry, Inc
Grand Prairie, TX 75050, USA
Charging Motor
Remote Close Coil
X5-2 (+)
X5-1 (-)
X6-7 (+)
X6-8 (-)
240
250
VAC
VDC
120
125
VAC
VDC
240
250
VAC
VDC
120
125
VAC
VDC
VAC
VDC
120
125
VAC
VDC
1st Shunt Trip
UVR
2nd Shunt Trip
Remote Reset
X6-13 (-)
X6-14 (+)
X5-11 (-)
X5-12 (+)
X9-1 (-)
X9-2 (+)
X8-13 (-)
X8-14 (+)
Ready to Close Switch
X6-5
X6-6
240 VAC
4A
240 VAC
1st Shunt Trip Switch
X9-7
X9-8
240 VAC
240 VAC
UVR Switch
Open Fuse Switch
X9-10
X9-11
X9-5
X9-6
52a 1st Aux. SW. 52b
X6-3
X6-4
X6-11
X6-12
X6-1
X6-2
X6-9
X6-10
X5-5
X5-6
X5-9
X5-10
X5-3
X5-4
X5-7
X5-8
52a 2nd Aux. SW. 52b
240 VAC ,
Bell Alarm
240 VAC
5A
5A
X9-13
X9-14X9-12
3A
3A
10 A / 125 VDC , 0.5 A / 24 VDC , 3A
0131
Made in Czech Republic / Assembled in USA
RESET TRIPPED
(BELL ALARM SHOWN TRIPPED)
(8)
(7)
(4)
(6)
(10)
(1)
(2)
(5)
(9)
(3)
ID-No.
Amps Max.
Volts Max
Frequency 50/60 Hz
Interrupting Rating
480 V
Suitable for continous operation
at 100% of rating only if used
in a minimum cubicle space
Max RMS Symmetrical
600 AC
600V
22 (Width) by 22,5 (Hight) by
Use insulating liner on top of
cubicle, above arc chutes.
31910220089
3000 A
100 kA
85 kA
19,5 (Depth) inches.
For Use With Bus Connection Only.
0132_ul
0132-2_ul
ID-No.
Suitable for continous operation
at 100% of rating only if used
in a minimum cubicle space
(Width) by (Hight) by
(Depth) inches.
Molded Case Switch
11FZ
This switch is suitable for use
on a circuit capable of
delivering not more than
Amps Max.
Volts Max
Frequency 50/60 Hz
600 AC
, rms symm. 600 VAC
when protected by branch
circuit type fuses or Ckt. Bkr.
LISTED
with the same ampere rating.
3-pole unit
, rms symm. 480 VAC
A
B

2 – 2
2.3 Frame designation
(1) Type of circuit breaker (WL)
(2) Siemens interrupting class
(3) Frame size
(4) Draw-out or fixed mounted circuit breaker
(5) No. of poles
(6) Maximum rated continuous current
2.4 Trip unit designation
(1) Type
(2) Catalog number
(3) Can be used in the following types of circuit breakers
(4) Regulatory approvals on a separate label
WLS2D316
(1) (2) (3) (4) (5) (6)
N450101000001
WLN., WLS., WLH., WLL., WLF., WLM.
0132-01
(1)
(2)
(3)
(4)

2 – 3
2.5 Rating Plug label
(1) Catalog number
(2) Rated current of the circuit breaker
(3) Regulatory approvals on a separate label
2.6 Cradle type label
(1) Catalog number
(2) Rated current and voltage of the cradle
(3) UL listing mark
(4) Circuit breakers that can be used with this cradle
(5) Sales order, production order, cradle identification number
A second type label is attached to the baseplate inside the cradle or on one of its side walls.
(1)
(2)
(3)
(1)
(2)
(3)
(4)
(5)

3 – 1
3 Standard specifications
Qualified Personnel
For the purpose of this instruction manual and these product labels, a "qualified person"is one who is familiar with the
installation, construction and operation of the equipment and the hazards involved and who, in addition, has the following 
qualifications:
a) Is trained and authorized to energize, de-energize, clear, ground and tag circuits and equipment in accordance with
established safety practices.
b) Is trained in the proper care and use of protective equipment in accordance with established safety practices.
c) Is trained in rendering first aid.
The circuit breakers are suited for operation in enclosed spaces not subject to operating conditions aggravated by dust, corrosive vapors or
gases. Circuit breakers to be installed in dusty or damp locations must be appropriately enclosed.
The circuit breaker frame and the trip units are in conformity with the standards:
-UL489
- NAVAL use according UL 489 Suppl. SB
- CSA C22.2 No. 5-02
The cradles are in conformity with the standards:
-UL489
- CSA C22.2 No. 5-02
The accessories are in conformity with the standards:
-UL489
- CSA C22.2 No. 5-02
The molded case switches are in conformity with the standards:
-UL489
- CSA C22.2 No. 5-02
-
DANGER
Hazardous voltage.
Will cause death, serious personal injury, or equipment/property damage.
Turn off and lock out all power supplying this equipment before working on this device.
Only qualified personnel should work on this equipment, after becoming thoroughly familiar with all warnings, safety
notices, and maintenance procedures contained herein and on the devices.
The successful and safe operation of this equipment is dependent on proper handling, installation, operation and 
maintenance.

4 – 1
4 Packing and Lifting
4.1 Unpacking
Unpack the circuit breaker and inspect it for damage.
If the circuit breaker or cradle is to be installed at a later date:
they may only be stored and redispatched in the original packing.
4.2 Weights
NOTICE
Equipment Damage.
Placing the circuit breaker on its rear side may cause damage to the finger cluster assemblies.
When handling circuit breakers, do not place them on their rear side.
Frame Size
Weight
Fixed-mounted
circuit breaker Draw-out circuit breaker Cradle Circuit breaker + Cradle
I 800 A / 1200 A 86 lb 137 lb 108 lb Only lift separately
II 800 A / 1200 A 124 lb 159 lb 112 lb Only lift separately
II 1600 A 124 lb 159 lb 112 lb Only lift separately
II 2000 A 130 lb 177 lb 128 lb Only lift separately
II 2500 A / 3000 A 141 lb 209 lb 152 lb Only lift separately
II C-class 148 lb 220 lb 163 lb Only lift separately
III 181 lb 260 lb 306 lb Only lift separately
III C-class 200 lb 278 lb 306 lb Only lift separately

4 – 2
4.3 Lifting with a crane
DANGER
Heavy Equipment.
Improper lifting will cause death, serious personal injury, or equipment/property damage.

Never lift a circuit breaker or cradle above personnel. Follow instructions for use of lifting bar assembly. Use OSHA/NIOSH
approved crane equipment and personal protection equipment for lifting/moving the circuit breakers and cradles.
Circuit Breaker Cradle
max. ½“ rope
NOTICE
Lifting a frame size III cradle with a breaker inside may result in distortion of the cradle.
Remove the frame size III breaker from the cradle before lifting.
>3ft

4 – 3
4.4 Lifting with a Lifting Bar Assembly
4.4.1 Lifting bar assembly (3-pole)
(1) Locking position for circuit breaker in frame size II
(2) Locking position for circuit breaker in frame size III
(3) Receptacle for circuit breaker carrying handle FS II / III
(4) Receptacle for circuit breaker carrying handle
DANGER
Heavy Equipment.
Improper lifting will cause death, serious personal injury, or equipment/property damage.

Never lift a circuit breaker or cradle above personnel. Follow instructions for use of lifting bar assembly. Use OSHA/NIOSH
approved crane equipment and personal protection equipment for lifting/moving the circuit breakers and cradles.
NOTE
Always lock the lifting bar assembly symmetrically on both sides.
0610_nu
(1) (2)
(3)
(4)

4 – 4
4.4.2 Lifting the circuit breaker
Catalog No
Lifting beam for circuit breaker and cradle WLLFT
Portable hoist for use with the lifting beam WLHOIST
0610-1_nu
1
2
2
0614_1
3
3
4

5 – 1
5 Installation
DANGER
Hazardous voltage.
Will cause death, serious personal injury, or equipment damage.
Turn off and lock out all power supplying this equipment before working on this device.
DANGER
Heavy Equipment.
Improper lifting will cause death, serious personal injury, or equipment/property damage.
Never lift a circuit breaker, fuse carriage, or cradle above personnel. Follow instructions for use of lifting bar assembly.
Use OSHA/NIOSH approved crane equipment and personal protection equipment for lifting/moving the circuit breakers
and cradles.
WARNING
High speed moving parts.
Can cause serious personal injury.
Discharge the closing spring before inspection and before carrying out any work on the circuit breaker.

5 – 2
5.1 Mounting
5.1.1 Mounting position
WARNING
Heavy Equipment
Can cause serious personal injury.
Use care when racking the breaker into the disconnect position. When a draw-out circuit breaker is mounted tilting toward
the front side, it is possible that the circuit breaker may slide out on the rails.

30°

30°

30°

30°

5 – 3
5.1.2 Mounting on horizontal surface - 
Mounting tolerances
The circuit breaker must be mounted on a rigid, level surface, capable of supporting the weight of the breaker, cradle, and associated busbar
components. The maximum amount of offset in the mounting plane is 3/64“ (1mm).
Fixed-mounted breaker
(1) Mounting points
Cradles for draw-out breaker
NOTICE
Damage to finger clusters.
Improperly aligned bussing at the terminal connections may affect the position of the bus stabs. Misaligned bus stabs may
result in damage to the finger clusters during circuit breaker rack-in.
Do not distort the cradle terminal connections when connecting to the main bus.
 h max 3/64” (1mm)
(1)
0139
3/64” (1mm)

5 – 4
(1) Fixed-mounted circuit breaker with 4 captive nuts for:
FS I / II: bolts M8 + washers kit catalog no. WLMETRC
FS III: bolts M10 + washers kit catalog no. WLMETRC3
Alternatively with bolts, washers and nuts:
FS I / II: 5/16“ / M8
FS III: 3/8“ / M10
(2) Cradle with 4 holes for:
FS I: countersunk head screws M6 or 1/4“ + belleville washer + nuts

FS II / III: screws M8 or 5/16“ + belleville washer + nuts
(1)
(2)
(2)

5 – 5
5.1.3 Cubicle and ventilation
(1) Upper ventilation opening
(2) Insulating liner use NEMA GPO-3, min. 0.094“ thick or comparable material
(3) Lower ventilation opening
1) Cubicle height given for use with insulating liner on cubicle top or cradle equipped with standard cover
2) Cubicle height given for use with insulating liner on cubicle top or cradle equipped with optional cover
3) Provided by cradle holes
Frame
size
Frame
rating
(A)
Interrupting
Class
Minimal cubicle dimensions Insulating liner
dimensions Cubicle ventilation
Width W1
(inch)
Height H
(inch)
Depth D1
(inch)
Width W2
(inch)
Depth D2
(inch)
Top
(square
inch)
Bottom
(square
inch)
I800 S,H,L 22 151) 19.5 18.5 10.5
not required
1200
II
800
S, L, C 22 22.51) 19.5 18.5 10.5
1200
1600
2000
2500
3000 55 551)
III
4000 L32 22.52) 19.5 28.5 10.5 48
(2“ by 24“) 883)
5000
4000 C32 30 19.5 28.5 10.5 48
(2“ by 24“) 883)
5000
(1)
(2)
(3)