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HOME ⊙ Westinghouse ⊙ Westinghouse DS/DSL series low-voltage power circuit breakers
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Westinghouse DS/DSL series low-voltage power circuit breakers

F: | Au:FAN | DA:2025-11-13 | 665 Br: | 🔊 点击朗读正文 ❚❚ ▶ | Share:

DSL series current limiting element fuse 1. Short circuit current exceeds the breaking capacity of the circuit breaker; 2. Aging of current limiting components; 3. The trip unit did not operate. 1. Investigate the short circuit fault and reduce the short circuit current; 2. Replace the current limiting component (requires original factory accessories); 3. Calibrate the trip unit to ensure normal operation

Contact heating and discoloration: 1. Loose wiring; 2. Insufficient contact pressure; 3. Contact oxidation and erosion; 4. Overload operation: 1. Re tighten the wiring and apply conductive paste; 2. Replace the contact pressure spring; 3. Polish or replace the contacts; 4. Reduce load and avoid overload

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