Molded case circuit breaker a molded case circuit breaker automatically interrupts the current flowing through it when the current exceeds the trip rating of the breaker.
automatic molded case air circuit breaker
CM3 molded case circuit breaker (MCCB) with thermal overload alarm but non-release function was introduced. It integrates part function of thermal overload relay and function of MCCB.
"FTa61O-WG and 620-WG controllers feature molded case, thermal magnetic trip circuit breakers. Toggle operators protrude through the inner door for ease of operation."