The Eaton MRCM-40 4 003 is a 40A, four-pole residual current circuit breaker (RCCB) with 30 mA sensitivity. It protects electrical circuits from earth leakage by interrupting power when leakage current exceeds 30 mA. The 4P design supports multi-wire, three-phase installations requiring neutral protection, aligning with Eaton's RCCB lineup.
