Circuit Breaker Trip Units, MD Series, Thermal Magnetic Trip
Siemens MD Series circuit breaker trip units are designed for protecting electrical appliances and are used in conjunction with branch circuit protection while connected with external devices. These Sentron Series trip units feature a thermal-magnetic, non-interchangeable trip overriding mild overloads while instantly reacting to severe current spikes for maximum current limiting protection. They are suitable for use with Siemens MD & HMD molded case circuit breakers for maximum efficiency. These trip units feature a 3 pole design with MD-T type frame for added versatility and are voltage rated at 600V. MD Series trip units are available in current ratings ranging between 500A & 800A on Raptor Supplies.