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Domesko Company Limited
[China]

Address:
3206 N.Tower, World Trade Center Complex, 371 Huanshi Road East Guangzhou Guangdong 510095 China

Phone:
86-20-87300985

Contact name:
Angus Leung , Sales manager

Domesko Company Limited

Products

	Moulded Case Circuit Breaker

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Model Number

APPLICATIONS:

NS moulded case circuit breaker is one of the most advanced type breakers in the world, which adopts international advanced design and manufacture technology. They are suitable for short circuit and overload protection for circuit of AC 690V 50/60Hz, rated current from 12.5A to 630A. It takes protect effect when mouse cage motors non-frequent start, breaking off working and protecting overload, short circuit and lacking voltage.

TRIPPING CHARACTERISTICS OF MCCB:

Rated current of release (A)

Thermodynamic release (ambient temp +40℃)

Operational current of magnetic release (A)

1.05In (cold state) inoperative time(h)

1.30In (heat state) inoperative time (h)

In≤63

≥1

＜1

10-50In±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℃)				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≤In≤400	≥2	＜2	4≤min	2S＜TP≤10	12In±20%

SPECIFICATION:

Type

Rated current
(A)

Poles

Rated insulating voltage
(V)

Rated operating voltage
(V)

Arcing over distance
(mm)

Utimate 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-50H

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

315,250,400,
500,600,630

35

35

10004000

NS-630N

45

45

NS-630H

70

70

NS-630L

150

150