RCCB With Overload Protection, provides 1P+N to 4P full pole configuration, suitable for home, commercial and industrial power distribution. Provides dual protection of residual current and overload, adopts electronic tripping technology and compact design. Built-in zero-sequence transformer and thermal magnetic release, real-time monitoring of residual current/overload current, fast disconnection of faults within 0.1 seconds, and effective protection against electric shock, short circuit and overload. With 6kA/10kA breaking capacity, it provides electronic/electromagnetic tripping options, wide temperature operation, and IP20 protection. NZ47L adopts modular design, supports up to 125A, and is compatible with standard distribution boxes. It has passed CE certification, complies with IEC 61009 standards, and is widely used.