How do I fix RCD Current Surge (3P, 8x51) on a SolarEdge?

Follow the isolation fault procedure, string by string isolation with megger testing. Then: Check DC connectors and isolators for moisture.

SolarEdge

RCD Current Surge

RCD Current Surge (3P, 8x51)

Sudden surge in residual current on a three phase inverter.

Common causes

Moisture ingressTransient insulation fault

What to check

STEP 1

Follow the isolation fault procedure, string by string isolation with megger testing.

STEP 2

Check DC connectors and isolators for moisture.

Escalate if

Persists after string testing

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