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Motor Protection Circuit Breakers
Hyundai Motor Protection Circuit Breakers (HMMS series), combines role of circuit breakers and bimetal-thermal relays. These breakers protect 3-phase motors against overload, phase failure, short circuit and too frequent activations.
They have thermal releases for protection motor winding (overload protection) and an electromagnetic release (short circuit protection). Their high breaking capacity permits exclusion of fuses in most of installations. HMMS series can be use also to protect low-voltage distribution lines, since it meets the requirements of the IEC 60947 and IEC60947-4-1 standards.