Siemens UL489 Quick Start Manual
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Also See for UL489:
- Operating instructions manual (352 pages) ,
- Instruction sheet (12 pages) ,
- Application manual (96 pages)
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UL489 and UL1066 WL Circuit Breaker Quick Start Guide
Congratulations on your purchase of the Siemens WL Air Circuit Breaker. This breaker combines
compact design, modularity, safety features, highest reliability/maintainability, innovative options,
and most advanced technology in the marketplace. This Quick Start Guide summarizes the
steps required to unpack, install, and operate your new circuit breaker. Many of these breakers
will already be installed in low voltage switchgear, switchboards, motor control centers, or other
electrical apparatus so only purchasers of loose breakers will be required to read the entire guide.
NOTICE This quick start guide does not purport to cover all details or variations in equipment, nor
to provide for every possible contingency to be met in connection with installation or operation.
Should further information be desired or should particular problems arise which are not covered
sufficiently for the Purchaser's purposes, please refer to the Operating Instructions supplied with
the circuit breaker, if this does not aid in resolution then the matter should be referred to the local
Siemens Sales Support Office. The contents of this quick start guide shall not become part of or
modify any prior or existing agreement, commitment or relationship. The sales contract contains
the entire obligations 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.
WARNING
Hazardous voltage!
Will cause death, serious personal injury, or
equipment/property damage.
Disconnect incoming power before working on this equipment.
Only qualified personnel should work on this equipment, after
becoming thoroughly familiar with all warnings, safety notices,
and maintenance procedures.
The successful and safe operation of this equipment is
dependant on proper handling, installation, operation, and
maintenance.
For the purpose of this quick start guide, a "qualified person" is
one who is familiar with the installation, construction and
operation of the equipment and the hazards involved. In
addition, he or she has the following qualifications:
a) Is trained and authorized to energize,
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Summary of Contents for Siemens UL489
- Page 1 Siemens Sales Support Office. The contents of this quick start guide shall not become part of or modify any prior or existing agreement, commitment or relationship. The sales contract contains the entire obligations of Siemens.
- Page 2 WL Circuit Breaker 1. Arc chute 15. Draw-out unit transport shaft 2. Carrying handle (one each side) 16. Position indicator 3. Identification tags 17. Table for ground-fault protection 4. Motor disconnect switch (option) or 18. Safety lock for racking handle (option) “Electrical Closed”...
- Page 3 WL Circuit Breaker Guide Frame 1. Arc chute cover (option) 2. Hole for crane hook 3. Arc vent openings 4. Shutter (option) 5. Locking device shutter (option) 6. Mutual mechanical circuit breaker interlocking (option) 7. Locking device guide rail 8. Locking device against moving from the disconnected position (option) 9.
- Page 4 Operating Instructions included with the circuit breaker. Please contact the local Siemens Sales Support Office if a manual was not supplied.
- Page 5 into the test position and then the connected position. If the circuit breaker cannot be racked in, make sure that the secondary terminals are aligned properly and that the shutters are opening correctly (if supplied). Insert the racking handle back into the circuit breaker by pushing the racking handle release button (2) to the left and stowing the handle back into the slot horizontally.
- Page 6 Requirement for “Ready to Close” or “OK” UL489 and UL1066 WL Low Voltage Air Circuit Breakers In order to close the WL circuit breaker, the OK indicator must be present as shown here. The circuit breaker will not close without this condition being met. Check the following items if this can not be achieved.
- Page 7 CubicleBUS Module Status Indicators and Operation Device LED Internal fault in the CubicleBUS module CubicleBUS module is in test mode Module is in operation CubicleBUS LED Connection exists to a different CubicleBUS module No other CubicleBUS module has been detected All other LEDs On the input module, this indicates an ON (high) signal at the corresponding input.
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Page 8: Digital Input Module
Zone Selective Interlocking (ZSI) Module The ZSI module provides the complete range of selectivity with the short delay time of t = 50 ms, irrespective of the number of fault zones and the location of the short circuit in the power distribution system. - Page 9 Configurable Digital Output Module The configurable digital output module can be adjusted via: the BDA or BDA Plus units the PROFIBUS-DP/MODBUS communications interface Switch ES Power software WLConfig software Digital output module With the digital module, up to 6 binary signals can be transmitted Terminal assignment 1 –...
- Page 10 WL Electronic Trip Unit Status Indicators and Features Trip Unit LED Indicators ACTIVE (FLASHING) – Trip unit is active ALARM – Overcurrent alarm COMM. – Communication active (another CubicleBUS module was recognized and communication started) EXTEND – Extended protective function has tripped TRIP L, TRIP N, TRIP S, TRIP I –...
- Page 11 ETU 727 BASIC TRIP UNIT Adjustable long-time protection with delay fixed at 10s Adjustable short-time protection and delay Fixed instantaneous protection Adjustable ground fault protection and delay, trip only ETU745 STANDARD TRIP UNIT Adjustable long-time protection and selectable I T and I T delay Adjustable short-time protection and delay Adjustable instantaneous protection...
- Page 12 WL Circuit Breaker COM15 and COM16 Commissioning Procedure 1. Verify that the COM15/16 module is mounted properly at the top of the breaker so that the microswitches on the bottom of the module are activated when the breaker is drawn in and out of the guide frame (only applies to draw-out breakers).