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Summary of Contents for WEG UBW225
- Page 1 Motors | Automation | Energy | Transmission & Distribution | Coatings WEG Molded Case Circuit Breakers UBW225 User’s Manual...
- Page 2 WEG is not liable for 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.
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Page 3: Installation
To install the circuit breaker perform the following steps: Note: the UBW225 circuit breakers are factory sealed. UL 489 requires that internal accessories be installed at the factory. Where local codes and standards permit and UL listing is not required, internal accessories can be field installed. - Page 4 CAUTION Do not exceed connector/bus capacity in WEG power line. b. If circuit breaker includes factory installed internal accessories, make sure accessory wiring can be reached when the circuit breaker is mounted. c. Position circuit breaker on mounting surface.
- Page 5 Note: 1) Package of three. Metric wire range Torque value N.m AWG wire range Torque value, Lb.-In. 2.5-6 3.96 #14-#10 4.52 16-25 5.09 #6-#4 35-95 5.65 #3-4/0 Table 2: terminal torque values for slotted head WEG Molded Case Circuit Breakers - User’s Manual...
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Page 6: Manual Operation
The PUSH-TO-TRIP button checks the tripping function and is used to periodically exercise the operating mechanism. 4. INSPECTION AND FIELD TESTING UBW225 molded case circuit breakers are designed to provide years of almost maintenance-free operation. The following procedure describes how to inspect and test a circuit breaker in service. -
Page 7: Field Testing
Exposure to certain types of chemicals can cause deterioration of electrical connections. 4.2. FIELD TESTING Any field testing should be done in accordance with applicable NEMA Standards. WEG Molded Case Circuit Breakers - User’s Manual... - Page 8 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.
- Page 9 NOTES WEG Molded Case Circuit Breakers - User’s Manual...
- Page 10 NOTES WEG Molded Case Circuit Breakers - User’s Manual...
- Page 11 NOTES WEG Molded Case Circuit Breakers - User’s Manual...
- Page 12 Changzhou – Jiangsu Phone: +86 519 88067692 info-cn@weg.net For those countries where there is not a WEG own operation, find our local distributor at www.weg.net. WEG Group - Automation Business Unit Jaraguá do Sul - SC - Brazil 55 (47) 3276-4000 Phone: + automacao@weg.net...
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