MCCB 100A 4 Pole ZMM1-125

The ZMM1 series molded case circuit breakers (hereinafter referred to as “circuit breakers”) are one of the new-type circuit breakers developed by our company using mature design and manufacturing technologies. With a rated insulation voltage of 800V, they are suitable for circuits with an alternating current of 50Hz, a rated operating voltage of 690V and below (400V for ZMM1-63), and a rated operating current up to 800A, used for infrequent conversion and infrequent starting of motors. The photo in the MCCB 100A 4 Pole ZMM1-125

The circuit breakers have overload, short-circuit, and undervoltage protection functions, which can protect the circuits and power supply equipment from damage

This breaker is applied for the distribution network of AC 50/60Hz, rated insulation voltage 800V, rated working current up to 800A, which is for electric energy distribution, circuit protection, protecting power supply facility from being destroyed by the fault of overloading, short circuit and undervoltage. And it is also used for protecting, overloading, short circuit and undervoltage of the motor. This breaker has such characteristics as high short circuit interrupting capacity, shortarcing and etc., which is a ideal product for users. This breaker can be installed vertically or hori-zontally. Standard:GB/T 14048.2-2020

Technical data


Type			ZMM1-63		ZMM1-125		ZMM1-160	ZMM1-250		ZMM1-400		ZMM1-630		ZMM1-800
Plose	P		3	3,4	2,3	3,4	3	2,3,4		3,4		3,4		3,4
Rated current In	A		10, 16,20, 25,32, 40,50, 63		10, 16,20, 25,32, 40,50, 63,80, 100, 125		100,125,140,160	100, 125,140 160,180, 200225, 250		225,250,315,350,400		400,500,630		630,700,800
Rated insulation voltage Ui	V		500		800
Rated impulsewithstand voltage Uimp	V		6000		8000
Rated operation voltage Ue	V		AC400		AC400/690
Breaking capacity class			L	M	L	M	L	L	M	L	M	L	M	L	M
Limit short-circuitbreaking capacity Icu	kA	230V	35	50	35	50	35	35	50	50	75	50	75	-	-
		400V	25	35	25	50	35	35	50	50	65	50	65	75	75
		690V	-	-	8	10	8	8	10	10	20	10	20	-	30
Working short-circuit breaking capacity Ics	kA	230V	18	50	18	50	22	22	50	50	50	50	50	-	-
		400V	18	22	18	25	18	18	25	35	32.5	35	42.5	50	50
		690V	-	-	4	5	4	4	5	5	10	5	10	-	15
Arcing distance	mm		50							100
Operating frequency	Electrical life		3000		3000		3000	3000		2000		2000		2000
	mechanical life		20000		20000		20000	20000		10000		10000		10000

Codes for release devices and accessories

ZMM1-125 (L, M) front panel wiring (2-pole, 3-pole, 4-pole) (X-X, Y-Y are the centers of the 3-pole circuit breaker) ZMM1-125 (L, M, H) Plug-in Front Panel Wiring (3-pole) (X-X, Y-Y are the centers of the 3-pole circuit breaker)