The RTM9-125 Molded Case Circuit Breaker (hereinafter referred to as the "circuit breaker") is mainly suitable for AC circuits with a frequency of 50/60Hz, a rated working voltage of 230V/400V, and a rated current of up to 125A and below.
It provides overload, short-circuit, and isolation protection, and can also be used for infrequent switching of electrical devices and lighting circuits under normal conditions.