background image

www.weg.net

WEG Molded Case Circuit Breakers - User’s Manual

8

5.  HFDDC

The instructions for installation, testing, maintenance, or repairherein are provided 
for the use of the product in general commercial applications and may not be 
appropriate for use in nuclear applica- tions. Additional instructions may be available 
upon specific request to replace, amend, or supplement these instructions to 
qualify them for use with the product in safety-related applications in a nuclear 
facility.
The information, recommendations, descriptions, and safety nota- tions in this 
document are based on WEG’s experience and judg- ment with respect to 
Retrofitting of Power Breakers. This instruction- al literature is published solely 
for information purposes and should not be considered all-inclusive. If further 
information is required, you should consult an authorized WEG sales representative.
The sale of the product shown in this literature is subject to 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 FITNESS 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 
otherwise for any special, indirect, incidental or conse- quential damage or loss 
whatsoever, including but not limited to damage or loss of use of equipment, plant 
or power system, cost of capital, loss of power, additional expenses in the use of 
existing power facilities, or claims against the purchaser or user by its customers 
resulting from the use of the information, recommendations and description 
contained herein.

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...

Reviews: