Introduction:
- The 4P RCBO ZMB7LE-63 is an integrated residual current circuit breaker (RCBO) with overcurrent protection. Due to its multi-functional integration and fast response, the integrated residual current circuit breaker (RCBO) has become a core component of modern electrical system safety, especially suitable for scenarios with high requirements for reliability and installation efficiency.
- Our 4P RCBO integrates residual current protection, overload protection, and short-circuit protection into a single device, eliminating the need for separate residual current devices (RCDs) and circuit breakers (CBs).
This simplifies circuit design and makes it suitable for space-constrained scenarios (e.g., home distribution boxes, small control cabinets).
- Our 4P RCBO housing is made of A-grade flame-retardant material to prevent fire risks at high temperatures.
- In traditional solutions, the RCD and circuit breaker need to be commissioned separately, which may lead to inconsistent operating timing. RCBO’s integrated design, however, ensures synchronous response to residual current, overload, and short-circuit protection, thereby improving fault handling efficiency.







