Our factory is proud to produce the CJBL-63 4P Residual Current Circuit Breaker With Overload Protection. The product name speaks for itself as it offers both residual current and overload protection which is essential in any electrical system. Our circuit breaker is designed with 4 poles to provide maximum protection to your electrical devices. The CJBL-63 is durable, reliable and easy to install. We are committed to producing high-quality products that meet the needs of our customers. Our engineers and designers work hard to ensure that every product leaving our factory is of the highest quality. Trust us to provide you with the best protection for your electrical system.