2P MCCB ZMM1-125

Introduction:

The molded case circuit breakers manufactured by CNTN Electric have a rated insulation voltage of 800V and are suitable for AC 50Hz circuits with a rated operating voltage of 690V and below (400V for the ZMM1-63 model) and a rated operating current from 63A to 800A. They are used for infrequent switching and starting of electric motors.
Our 2P MCCB features overload, short circuit, and undervoltage protection functions, capable of protecting circuits and power equipment from damage.
Our circuit breaker features high short-circuit breaking capacity and short arc extinguishing time, making it an ideal choice for users.
The CNTN electric 2P MCCB uses a highly flame-retardant material, effectively isolating electrical arcs, and providing protection against dust, moisture, and electric shock. It can be directly installed in distribution cabinets or outdoor distribution boxes, preventing accidental contact with live parts.
This MCCB offer flexible and versatile installation options, supporting fixed, plug-in, and withdraw-able mounting, and can be installed vertically or horizontally.
CNTN Electric can not only produce 2P MCCB but also 4-pole MCCB and 3-pole MCCB versions according to customer requirements.
Our MCCB is suitable for three-phase four-wire circuits, and can also be used for three-phase three-wire and three-phase two-wire circuits.
CNTN Electric not only manufactures 2P MCCB in AC types, but also produces DC molded case circuit breakers.
CNTN Electric not only produces MCCBs with white covers made of bakelite, but also produces MCCBs with gray and black covers made of plastic.
Would you like to know the price of our 2P 80A MCB? Please contact us for more details now!

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