How do I fix Frame Circuit Breaker Overcurrent Protection on a Sigenergy?

Reduce load power on the affected circuit Then: Verify all AC connections are secure and not damaged

Sigenergy

3018

Frame Circuit Breaker Overcurrent Protection

Frame circuit breaker protection activated. ID1=Grid-side, ID2=Engine-side, ID3=Backup side.

Common causes

Excessive load on circuitShort circuit in wiringBreaker feedback contact fault

What to check

STEP 1

Reduce load power on the affected circuit

STEP 2

Verify all AC connections are secure and not damaged

Escalate if

Fault reappears after reducing load or checking connections — breaker may need replacement

Need full interactive diagnosis?

Faultpath walks you through decision trees, fault codes, and commissioning — built for solar & battery engineers.