Where standard breakers fall short, our Residual Current Circuit Breaker (RCCB) provides the critical defense. We manufacture these life-saving devices to continuously monitor current balance, detecting and isolating dangerous leakage currents that pose a direct risk of electric shock and fire.

Residual Current Circuit Breaker

The residual current circuit breaker mainly has the following functions:

Function	Description
Protection Against Earth Faults	Detects and interrupts residual (leakage) currents to prevent electric shock and fires caused by earth faults.
Overcurrent Protection	Provides protection against overcurrent conditions, such as short circuits and overloads, by breaking the circuit.
Automatic Trip	Automatically trips when a predefined threshold of residual current is detected, ensuring immediate disconnection from the power source.
Manual Reset	Requires manual resetting after a trip, ensuring that the fault is addressed before re-energizing the circuit.
Multi-Pole Configuration	Available in multiple pole configurations (e.g., 1P+N, 2P) to cater to different circuit protection needs.
Sensitivity Levels	Offers various sensitivity levels (e.g., 30mA, 100mA, 300mA) to accommodate different applications and risk levels.
Compliance with Standards	Designed and tested according to international standards (e.g., IEC/EN 61009) to ensure reliability and safety.

Residual current circuit breakers not only accurately detect residual current in a circuit (such as leakage current caused by human electric shock or insulation damage) and quickly disconnect the circuit to prevent electric shock injuries, but they also simultaneously respond to circuit overloads by rapidly disconnecting when the current exceeds the rated range, preventing overheating, equipment damage, or fire. This single device provides dual critical protection, creating a double safety barrier for power distribution systems. They adhere to stringent high-reliability standards and adhere to the international IEC 61008 standard during their development and production. Inquire

Residual Current Circuit Breaker

Features of Residual current circuit breaker

Residual current circuit breakers (RCCBs) accurately monitor residual current in electrical circuits, tripping and interrupting the circuit within milliseconds to effectively prevent electric shock and electrical fire hazards. Widely used in residential, commercial, and industrial settings for circuit isolation and leakage protection ·Global Market Adaptability: Supports OEM/ODM services and exports to regions like South America, South Asia, and the Middle East

FAQ

How does a residual current circuit breaker (RCCB) work?
>

It works by monitoring the current difference between the live wire and neutral wire. Under normal conditions, the two currents are equal. When leakage occurs, part of the current flows to the ground, creating a current difference. The RCCB detects this difference and triggers the tripping mechanism to cut off the power immediately.
What is a residual current circuit breaker (RCCB) and what is its main function?
>

A residual current circuit breaker (RCCB) is an electrical protection device. Its main function is to detect the residual current (leakage current) in the circuit and quickly cut off the power supply, thereby preventing electric shock accidents and fire hazards caused by leakage.