Home Products Circuit Protection MCB & MCCBM3 Series Moulded Case Circuit Breakers

M3 Series Moulded Case Circuit Breakers

M3 series MCCB is one of new products developed and manufactured by adopting international advanced technology. It is supplied with rated insutating voltage 690V and used for circuit of AC 50/60Hz, rated operating voltage AC 415V or below, rated opereating current from 16A to 630A. It is designed for protection of electric circuit, motors, transformers and other equipments. The products conforms to IEC60947-2 standard.

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Parameter

Type		M3-160X	M3-160	M3-250	M3-400	M3-630
Poles number		3	3	3	3	3
Rated current In(A)		20~160A	50~160A	100~250A	200~400A	315~400A
Rated operating voltage Ue(V) AC 50/60Hz		690	690	690	690	690
Rated insulation voltage Ui(V)		800	800	800	800	800
Rated impulse withstand voltage Uimp(KV)		8	8	8	8	8
Utilisation category		A	A	A	A	A
Rated ultimate short-circuit breaking capacityIcu(KA)	AC 220/240V	65	65	65	65	65
	AC 380/415V	40	40	40	40	40
	AC 690V	8	12	12	12	12
Rated short-circuit servicebreaking capacityIcs(KA)	AC 220/240V	65	65	65	65	65
	AC 380/415V	40	40	40	40	40
	AC 690V	4	6	6	6	6

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