HM3 series plastic shell circuit breakerDetailed product description：

The HM3 (DZ122) series plastic shell circuit breaker is a new series of plastic shell circuit breakers with advanced international standards in the 1990s. This series of circuit breakers has a rated insulation voltage of 400V (rated current of 160A and below) to 690V (rated current of 250A and above), mainly used in AC 50Hz, rated current up to 800A, and rated working voltage of 380/400V to 660/690V distribution networks. They are used to distribute power and protect line power equipment from overload, short circuit, and undervoltage. Under normal conditions, they can also be used for infrequent line switching. Circuit breakers with a rated current of 400A or below can be used for infrequent starting of motors, breaking during operation, and as overload, short circuit, and undervoltage protection for motors. This series of circuit breakers can be installed vertically (i.e. vertically) or horizontally (i.e. horizontally).

Main technical performance indicators of HM3 series plastic shell circuit breaker:

model		HM3L-100	HM3H-100	HM3H-160	HM3H-250	HM3H-400	HM3H-630
Shell level rated current Inm (A)		one hundred		one hundred and sixty	two hundred and fifty	four hundred	630 800
Rated current In (A)		10 12.5 16 20 25 32 50 100	32 40 50 63 80 100	100 125 160	160 200 250	250 315 400	400 500 630 800
polar number		3/4
Rated insulation voltage Ui (V)		four hundred			six hundred and ninety
Rated working voltage Ue (V)		four hundred
Rated ultimate short-circuit breaking capacity Icu (kA)		twenty-five	fifty		sixty-five
Rated operating short-circuit breaking capacity Ics (kA)		50%Icu	75%Icu
Operational performance	Mechanical lifespan (times)	eight thousand and five hundred		seven thousand		four thousand
	Electrical lifespan (times)	one thousand and five hundred		one thousand
Circuit breaker power consumption (W)		twenty-five	thirty	forty	fifty	one hundred and thirty-five	one hundred
Flying arc distance (mm)		fifty			one hundred		one hundred and sixty
Can be equipped with accessories	shunt release	√
	Undervoltage release device	√
	auxiliary contact	√
	Alarm contact	√
	Electric operating mechanism	√
Rotating handle operating mechanism	Central style	√
	Eccentric type	√
Weight (kg)		zero point nine	one point one	one point one	two point five	five point five	ten

HM3 series plastic shell circuit breaker