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Karen ChapmanAug 2, 2025
Why won't my Siemens Circuit breakers close?
- MmasseydavidAug 2, 2025
If your Siemens Circuit breaker fails to close, it could be due to several reasons. First, check if the secondary control circuit is de-energized or if the control circuit fuses are blown; if so, energize or replace them. Damage to wiring, terminals, or connectors can also prevent closing, so inspect and repair as needed. Other potential causes include a failure of the charging motor, a faulty motor cutoff switch, or issues with the anti-pump relay contacts or the close coil. Also, verify the auxiliary switch NC contacts and the spring charged switch NO contact. Finally, inspect the close latch position and the operating mechanism for mechanical failures. If a mechanical failure is suspected, contact the factory or an authorized service shop.
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