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Motors | Automation | Energy | Transmission & Distribution | Coatings

User’s Manual

WEG Molded Case Circuit

Breakers

UBW2500

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Summary of Contents for UBW2500

Page 1: ...Motors Automation Energy Transmission Distribution Coatings User s Manual WEG Molded Case Circuit Breakers UBW2500 ...

Page 2: ...ned herein are based on WEG experience and judgment but should not be considered to be all inclusive or covering every application or circumstance which may arise If any questions arise contact WEG for further information or instructions 1 INTRODUCTION 1 1 GENERAL INFORMATION The UBW2500 circuit breakers Figure 1 have interchangeable electronic trip units rated 2500 A maximum Refer to Table 1 for ...

Page 3: ...it breaker perform the following steps Note if required internal accessory installation in any type of circuit breaker should be done before the circuit breakerismounted and connected Refer to individual accessory instruction leaflets 1 Make sure that the circuit breaker is suitable for the intended installation by comparing nameplate data with existing equipment ratings and system requirements In...

Page 4: ...og No LT1A UBW1600 or Securing hardware Securing hardware Figure 2 terminal installation Step 1 Install one rear connector Step 2 Install one set of heat sinks Step 3 Repeat steps one and two to adjacent poles Figure 3 2500 A rear connector instructions WARNING Voltages in energized equipment can cause death or severe personal injury Before mounting the circuit breaker in an electrical system make...

Page 5: ...e 14 500 368 30 4 pole 19 000 482 60 438 11 13 Dia 4 holes Use 375 M11 Dia Bolts for mounting circuit breaker Figure 4 circuit breaker mounting bolt drilling plans Circuit breaker handle Circuit breaker handle Circuit breaker handle 5 094 129 39 12 906 327 81 17 406 442 11 156 3 96 Radius if required 9 638 244 80 6 563 166 70 6 563 166 70 Figure 5 circuit breaker escutcheon dimensions for 4 pole c...

Page 6: ...ing plug must be installed before attempting to close the circuit breaker Manual operation of the circuit breaker is controlled by the circuit breaker handle and the PUSH TO TRIP button The circuit breaker handle has three positions two of which are shown on the cover with raised lettering to indicate ON and OFF On the handle ON OFF and trip are also shown by a color coded strip for each circuit b...

Page 7: ...of trip is known and the situation rectified 3 2 PUSH TO TRIP BUTTON The PUSH TO TRIP button checks the circuit breaker tripping function and may be used to periodically exercise the operating mechanism The button is designed to be operated by finger pressure 4 INSPECTION AND FIELD TESTING UBW2500 molded case circuit breakers are designed to provide years of almost maintenance free operation The f...

Page 8: ...eaker 3 With the circuit breaker in the ON position press the PUSH TO TRIP button to mechanically trip the circuit breaker Trip reset and switch circuit breaker ON several times If mechanism does not reset each time the circuit breaker is tripped replace the circuit breaker 4 Checkbase cover andoperatinghandleforcracks chipping anddiscoloration Circuit breakers should be replaced if cracks or seve...

Page 9: ... FOR A PARTICULAR PURPOSE OR MERCHANTABILITY OR WARRANTIES ARISING FROM COURSE OF DEALING OR USAGE OF TRADE ARE MADE REGARDING THE INFORMATION RECOMMENDATIONS AND DESCRIPTIONS CONTAINED HEREIN In no event will WEG be responsible to the purchaser or user in contract in tort including negligence strict liability or other wise for any special indirect incident al or consequential damage or loss whats...

Page 10: ...www weg net WEG Molded Case Circuit Breakers User s Manual 10 NOTES ...

Page 11: ...www weg net WEG Molded Case Circuit Breakers User s Manual 11 NOTES ...

Page 12: ... Phone 233 30 2766490 info zestghana com gh INDIA Bangalore Karnataka Phone 91 80 41282007 info in weg net Hosur Tamil Nadu Phone 91 4344 301577 info in weg net ITALY Cinisello Balsamo Milano Phone 39 2 61293535 info it weg net JAPAN Yokohama Kanagawa Phone 81 45 5503030 info jp weg net MALAYSIA Shah Alam Selangor Phone 60 3 78591626 info wattdrive com my MEXICO Huehuetoca Mexico Phone 52 55 53214...

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