Item Name: GTW88 series intelligent air circuit breaker

GTW88 Air circuit breaker is applicable for distribution network of AC 50Hz, rated voltage of 400V and 690V, and rated current of 630A -3200A, to distribute electric energy protection circuit and prevent power equipments from harm of overload, under-voltage, short circuit and single-phase earth etc. Provided with intelligent protecting function and precise selective protection, breaker can enhance the dependability of power supply and avoid unwanted power cut.

Standard: IEC 60947-2

Frame size Rated Current Inm(A)		2000	3200	4000	6300
Rated current In A		400, 630, 800,  1000, 1250,  1600, 2000	2000, 2500,  2900, 3200	3200, 3600,  4000	4000, 5000,  6300
Rated    Insulation   voltage(V)		690	690	690	690
Rated limit short-circuit Breaking capacity Icu(KA) O-CO	400V	85	100	100	120
	690V	50	65	65	80
264/0.2Rated short-circuit Connecting capacity Ics(KA) O-CO-CO	400V	176/0.2	220/0.2	220/0.2	220/0.2
	690V	105/0.25	143/0.2	143/0.2	187/0.2
Rated operation   short-circuit breaking capacity Icu(KA)	400V	50	65	65	80
	690V	40	50	50	70
Rated short-  time withstand    current   Icw KA(1s)	400V	50	65	65/80(MCR)	85/100(MCR)
	690V	40	50	50/65(MCR)	65/75(MCR)

More Product Features