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Keith LeeAug 9, 2025
Why does my Siemens SENTRON 3VL1600 circuit breaker keep tripping due to overload?
- TTimothy HorneAug 9, 2025
If your Siemens Protection Device circuit breaker trips due to overload, it indicates the circuit breaker is working as intended. First, verify if the operating current exceeds the thermal tripping limit. Inspect the terminals for discoloration, as cables may loosen due to vibration or cold flow. High ambient temperatures can also cause tripping; consider derating the In or IR values if temperatures in enclosures are too high. Finally, if none of the above apply, inspect the overcurrent release for discoloration and ensure tightening torque values are correct.
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