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WEG Molded Case Circuit Breakers - User’s Manual

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Summary of Contents for UBW225

Page 1: ...Motors Automation Energy Transmission Distribution Coatings User s Manual WEG Molded Case Circuit Breakers UBW225 ...

Page 2: ...or the misapplication or misinstallation of its products The user is cautioned to observe all recommendations warnings and cautions relating to the safety of personnel and equipment as well as all general and local health and safety laws codes and procedures The recommendations and information contained herein are based on WEG experience and judgment but should not be considered to be all inclusiv...

Page 3: ... packages 1 Make sure that the circuit breaker is suitable for the installation by comparing nameplate data with system requirements Inspect the circuit breaker for completeness and check for damage before mounting WARNING Before mounting the circuit breaker in an electrical system make sure there is no voltage present where work is to be performed The voltages in energized equipment can cause inj...

Page 4: ...ighten screws firmly but do not exceed 28 pound inches 3 16 N m 3 Pole Circuit Breaker Handle 1 375 34 93 164 32 tap holes M4 x 0 7 Figure 2 circuit breaker mounting bolt drilling plans Circuit Breaker Handle Circuit Breaker Handle 1 325 33 66 594 15 09 250 6 35 2 313 58 75 R 2 906 73 81 188 4 78 mm Dia Hole for access to push to trip Line End Load End Figure 3 circuit breaker escutcheon dimension...

Page 5: ...interphase barrier by sliding barrier into dovetail grooves between terminals 8 After the circuit breaker is installed check all mounting hardware and terminal connecting hardware for correct torque loading Torque values for line load terminals are given in Tables 1 2 and 3 and on the circuit breaker nameplate Note see Section 5 for additional details for HFDDC Terminal catalog number Terminal bod...

Page 6: ...igure 4 ON OFF Reset Push to trip button Push to trip Handle International symbol OFF Handle position Indicator color Red ON White Trip Green OFF Trip Reset Figure 4 circuit breaker manual controls 3 1 CIRCUIT BREAKER RESET After tripping the circuit breaker is reset by moving the circuit breaker handle to the extreme OFF position Note in the event of a thermal trip the circuit breaker cannot be r...

Page 7: ...al linkages are not free replace circuit breaker 3 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 4 Check base cover and operating handle for cracks chipping and discoloration Circuit breakers should be replaced if cracks or severe ...

Page 8: ... the terms and conditions outlined in appropriate WEG selling policies or other contractual agreement between the parties This literature is not intended to and does not enlarge or add to any such contract The sole source governing the rights and remedies of any purchaser of this equipment is the contract between the purchaser and WEG NO WARRANTIES EXPRESSED OR IMPLIED INCLUDING WARRANTIES OF FITN...

Page 9: ...www weg net WEG Molded Case Circuit Breakers User s Manual 9 NOTES ...

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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