• 1920x300 nybjtp

What is a Residual Current Breaker with overcurrent protection?

What is the Meaning of RCBO?

The RCBO meaning is residual current circuit breaker with overcurrent protection. These devices are designed to ensure the safe operation of electrical circuits, triggering disconnection whenever an imbalance is detected. As a core electrical safety device, a Residual Circuit Breaker With Overload Protection (RCBO) is widely used in homes and light commercial spaces to avoid electric shocks, fires, and equipment damage caused by circuit faults.

Zhejiang C&J Electrical co., ltd. launches the CJRO5-80 RCBO—a high-quality Residual Circuit Breaker With Overload Protection that meets the IEC61009-1 standard. This device offers flexible configurations: 2P and 4P pole options, breaking capacities of 6kA and 10kA, and a current range of 6-80A, fitting various circuit needs of different scenarios.

With an exquisite, compact design (only 36mm wide), the CJRO5-80 RCBO is perfect for 35mm guide rail installation in household distribution boxes, which can effectively save valuable space in the electrical setup. It also boasts outstanding durability: up to 20,000 mechanical operations and 10,000 electrical operations, ensuring long-term stable and reliable performance for users.

As a professional Residual Circuit Breaker With Overload Protection, it integrates multiple practical safety functions: residual current (leakage) protection, short-circuit protection, overload protection, and corresponding tripping features. Additionally, it is equipped with an overload trip window indicator for easy status checking, and a locking function—when power cutoff is not allowed or fault overload occurs, the leakage protector will lock automatically to prevent potential safety accidents.

The combined terminals of the CJRO5-80 RCBO simplify the wiring process, supporting cables with a cross-sectional area of 1-35mm². Meanwhile, the red-green safety indicator windows provide clear fault prompts, greatly enhancing the usability of the device. For users seeking a reliable Residual Circuit Breaker With Overload Protection, the CJRO5-80 from Zhejiang C&J Electrical co., ltd. is undoubtedly an ideal choice to build safer electrical systems.


Post time: Dec-03-2025