MCCB NS series Moulded Case Circuit Breaker

MCCB NS series Moulded Case Circuit Breaker High quality NS CE certificated Quality guarantees 2 years OEM offered

MCCB NS series Moulded Case Circuit Breaker

NS series moulded case circuit breaker is one of breaker which adopts international ad-vanced design, manufacture technology to develop. The rated insulating voltage is 750V, suit-able for AC 50Hz(60Hz),rated working voltage 690V or below, rated working current is 12.5A to1250A of circuit and used in distributing electric energy, and non-frequent breaking in the nor-mal conditions , protecting the current& equipment from overload&under voltage, circuit breakerwith rated frame current 400A or below,can be used in mousecage motor's non-frequent start,breaking during working, protecting motor from overload, short circuit&undervoltage,the prod-uct conforms to IEC60947-2 standard.

Main technical specifications

Type	Rated Current (A)	Poles	Rated Insulating Voltage(A)	Rated Operating Voltage (A)	Acting Over Distance (mm)	Ultimate short circuit Breaker Capacity	Servies Short Circuit Breaker Capacity	Operating performance (times)
NS- 100D	12.5,16,20,25,32,40,50,63,80, 100	3,4	950	690	0	18	18	1500	8500
NS- 100N						25	25
NS- 100H						70	70
NS- 100L						150	150
NS- 160D	16,20,25,32,40,50,63,80,100, 125, 160					25	25	1500	7000
NS- 160N						36	36
NS- 160H						70	70
NS- 160L						150	150
NS- 250D	160, 180, 200, 225, 250					25	25	1000	7000
NS- 250N						36	36
NS- 250H						70	70
NS- 250L						150	150
NS- 400D	200,225,250, 300, 315, 400					35	35	1000	4000
NS- 400N						45	45
NS- 400H						70	70
NS- 400L						150	150
NS- 630D	315,350,400, 500,600, 630					35	35	1000
NS- 630N						45	45
NS- 630H						70	70
NS- 630L						150	150

Tripping Characteristics of MCCB

Rated Current of Release(A)	Thermodynamic Release (ambient temp +40°c)		Operational Current of Magnetic Release(A)
	1.05In(cold state) inoperative time(h)	1.30In(heat state) operative tiem(h)
In≤63	≥1	<1	10In±20%
63<In≤100	≥2	<2	10In±20%
100<In≤630	≥2	<2	5-10In±20%

Rated Current of Release (A)	Thermodynamic Release (ambient temp +40°c)				Operational Current of Magnetic Release (A)
	1.0In (cold state) operative time(h)	1.20In (heat state) operative time(h)	1.50In (heat state) operative time(h)	1.01In (heat state) operative time(h)
12.5≤In≤400	≥2	<2	≤4min	2S<Tp≤10S	12In±20%

MCCB NS series Moulded Case Circuit Breaker