Rcd Rccb Residual Current Protection Circuit Breaker

China Suppliers CNKA offers low-price RCD and RCCB residual current protection circuit breakers. These devices are primarily used to detect leakage faults and protect individuals from fatal electric shocks. They feature overload and short circuit protection to safeguard circuits and motors from damage. Additionally, these breakers can serve as infrequent switching and starting devices for circuits.

CNKA rcd rccb residual current protection circuit breaker Parameter (Specification)

CNKA rcd rccb residual current protection circuit breaker Characteristic

1  The leakage protector is designed to prevent single-phase electric shock accidents. It provides effective protection if the load side contacts a phase (live) wire. However, it cannot protect if a person insulated from the ground touches both a phase and a neutral wire.

2  Although leakage protectors might not show their importance during normal operation, their preventive role is crucial. If the leakage protector activates, the cause should be carefully investigated rather than simply bypassing or removing it, as this is extremely dangerous and unacceptable.

CNKA rcd rccb residual current protection circuit breaker Details

CNKA rcd rccb residual current protection circuit breaker Dimensions

CNKA rcd rccb residual current protection circuit breaker FAQ

Q: What does RCBO mean?
A: CNKA's RCBO (Residual Current Breaker with Overcurrent) is a circuit breaker that provides leakage protection. It must adhere to international standard IEC 61009-1:2012 and national standard GB 16917.1-2003.

Q: What is residual current?
A: Residual current is the vector sum of the currents in each phase and the neutral line in a low-voltage distribution system when it is not zero. It typically occurs when current flows from a charged body to the ground through a person, causing an imbalance between the incoming and outgoing lines. This imbalance is known as residual current or leakage current.

Q: Where is RCCB used?
A: CNKA RCCB is used in conjunction with an MCB to protect against overcurrent and short circuits. It is installed such that both phase and neutral wires pass through it, providing effective protection against leakage currents of 30, 100, and 300mA, and is widely used to prevent electric shocks.