Product Details

MCCB GM2-1250 electronic type

Model					GM2-1250
Number of poles					3	4
Control	Manual	Toggle			■
Connections	Fixed	Front connection			■
		Rear connection			■
Electrical characteristics as per IEC60947-2 and GB14048.2
Rated current(A)		In	50℃		1250
			65℃		1000
Rated insulation voltage(V)		Ui			750
Rated impulse withstand voltage(KV)		Uimp			8
Rated operational voltage(V)		Ue	AC 50/60Hz		690
Type of circuit breaker					N
Ultimate breaking capacity (KA rms)		Icu	AC 50/60Hz	400V	50
Service breaking capacity		Ics	%Icu		75%
Short-time withstand current (KA rms) V AC 50/60Hz		Icw	0.5s		25
			1s		17
Suitability for isolation					■
Utilization category					B
Max. demand current (C-O cycles)	Mechanical				50000
	Electrical		440V	In/2	5000
				In	4000
			690V	In/2	3000
				In	2000
Pollution degree					III
Protection
Interchangeable control units					Electronic type(STK5.0)
Overload protection	Long time	Ir(In×...)			■
Short-circuit protection	Short time	Isd (Ir×...)			■
	Instantaneous	Ii(In×...)			■
Control auxiliaries
Auxiliary switch					■
MX shunt and MN undervoltage winding					■