Electroline Electrical Co.,LTD.

NS Moulded Case Circuit Breaker

Application

NS Series moulded case circuit breaker is one of new type breakers which our company adopts international advanced design, manufacture technology to develop. The rated insulating voltage is 950V. Suitable for AC 50Hz (60Hz). Rated working voltage 690V or below, rated working current is 12.5A to 630A of circuit and used in distributing electric energy. Non-frequent making and breaking in the normal conditions and protecting when circuit and installation are overload, short circuit and lacking voltage. Rated shell-rack and the breaker whose current is under 400A, take protection effect when mouse cage motor's non-frequent start, breaking off working and protecting form overload, short circuit and lacking voltage. The product conforms to GB14048.2, IEC 60947-2 standards.

Main Technical Specifications

Type	Rated current of trip (In A)	Pole number	Rated insulating voltage (V)	Rated operating distance (mm)	Arcing-over distance (mm)	Uitimate short circuit breakering capacity (kA)	Short circuit breaking capacity (kA)	Operation performance
								ON	OFF
NS-100D	12.5,5,16,20 25,32,40,50 63,80,100	3P 4P	950	≥90		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	1000	7000
NS-160N						35	35
NS-160H						70	70
NS-160L						150	150
NS-250D	160,180, 200,225, 250				0	25	25	1000	7000
NS-250N						36	36
NS-250H						70	70
NS-250L						150	150
NS-400D	200,225, 250,300, 315,400					25	25	1000	4000
NS-400N						36	36
NS-400H						70	70
NS-400L						150	150
NS-630D	315,350, 400,500, 600,630					35	35	1000	4000
NS-630N						45	45
NS-630H						70	70
NS-630L						150	150

Working Conditions

Rated current of release(A)	Thermodynamic release(ambient temp+40℃)		Operational current of magnetic release(A)
Rated current of release(A)	1.05In(cold state)inoperation time(h)	1.30In(heat state) operative time(h)	Operational current of magnetic release(A)
In≥3	≥	< 1	10In±20%
63≥n≥00	≥	< 2	10In±20%
100≥n≥30	≥	< 2	5-10In±20%

Rated current of release(A)	Thermodynamic release(ambient temp+40℃)				Operational current of magnetic release(A)
Rated current of 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)	Operational current of magnetic release(A)
12.5≥n≥00	≥	< 2	≥min	2S<Tp≥0S	12In±20%

MM	C	C1	C2	C3	C6	C7	C20	C21	G	G1	G4
NS-100/160/250D/N/H/L	29	76	54	108	43	104	34	86	62.5	125	70
NS-400/630D/N/H/L	41.5	116	92.5	184	53	146	46.5	126	100	200	113.5

MM	G5	H	H1	H2	H3	H4	H5	H6	H7	K	K4
NS-100/160/250D/N/H/L	104	80.5	161	94	188	160.5	321	178.5	357	17.5	35
NS-400/630D/N/H/L	227	127.5	255	142.5	285	240	480	237	474	22.5	45

MM	K2	L	L1	L2	P1	P2	P4	P5	P6	R	R1
NS-100/160/250D/N/H/L	70	52.5	105	140	81	86	111	83	88	14.5	29
NS-400/630D/N/H/L	90	70	140	185	95.5	110	168	107	112	31.5	63

MM	R2	R4	R5	R6	R7	R12	R13	￠T	￠T4	(Ue)
NS-100/160/250D/N/H/L	54	108	143	29	58	43	86	6	22	≥2
NS-400/630D/N/H/L	71.5	143	188	46.5	93	63	126	6	32	≥2