CYM6EL electronic adjustable plastic case residual current circuit breakerSuitable for circuits with AC 50Hz (or 60Hz), rated insulation voltage of 800V, rated working voltage of 400V, and rated working current up to 630A (800A) for infrequent switching and motor starting. Circuit breakers have overload, short circuit, and undervoltage protection functions, which can protect the circuit and power equipment from damage; At the same time, it can provide indirect contact protection for people and also provide protection against fire hazards caused by long-term grounding faults that can be detected by the overcurrent protection department. When other protective devices fail, the NAM1L residual current circuit breaker with a rated residual operating current of 30mA can directly provide additional protection. Circuit breakers are divided into two types based on their rated ultimate short-circuit breaking capacity: M-type (higher breaking capacity) and H-type (high breaking capacity four pole without H-type). This circuit breaker has the characteristics of small size, high breaking capacity, short flying fox, and anti vibration. Circuit breakers can be installed vertically or horizontally. Circuit breakers have the function of isolation