DS19 series DC fast circuit breakerDetailed product description：

DS19 DC fast circuit breaker (hereinafter referred to as circuit breaker) is mainly used for short-circuit and overload protection of rectifier units, DC motors, and feeder lines in circuits with rated voltage of 1600V DC and below and rated current of 4000A and below. It is particularly suitable as a power supply protection switch for subway and light rail traction substations, and can also be used as a protection switch for rectifier devices and DC motors in important industrial fields such as steel rolling and mining.

DS19 series DC fast circuit breaker models and their meanings:


Main technical parameters of DS19 series DC fast circuit breaker:

Rated voltage (Ue)	Maximum operating voltage	Rated ultimate breaking capacity	Inherent working hours	Electrical lifespan	Number of auxiliary contacts	Overall dimensions	Operating voltage
1600V	1800V	75KA(T=15ms)	6ms	four hundred two hundred	5NC+5ND	500, 400, 100, 50	DC220、110、50V; AC220V

Rated current (In)	Rated insulation voltage	Breaking overvoltage	Current setting range	mechanical life	Auxiliary contact capacity	installation dimensions	weight
2500A/4000A	4000V	(1.5～2.0)Ue	(1.25～2.7)KA; (2～5)KA (2～8)KA; (4～10)KA /(2～5)KA; (4～10)KA (2～8)KA; (4～15)KA	twenty thousand	AC220V 10A; DC110V 1A	4－Φ11, 320*160(mm)	86kg 98kg

DS19 series DC fast circuit breaker