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NS series MCCB
NS 80H-MA NS 100N 3P NS 160N 4P
NS 400N 3P NS 1250 3P
Application
NS moulded case circuit breaker is one of the most advanced type breakers in the world, which adopts international advanced design and manufacture te chnology. They are suitable for short circuit and overload protection for circuit of AC 690V 50/60Hz, rated current from 12.5A to 630A.Its rated insulation volt age is 690V. It can make and break the non-frequently circuit in the normal co nditions. It takes protect effect when mouse cage motors non-frequent start, breaking off working and protecting overload, short circuit and lacking voltage. It complies with IEC60947-2.
Tripping characteristics
Rated current of release (A) Thermodynamic release (ambient temp+40℃ Operational current
of magnetic
release (A)
1.05In (cold state)
1.30In (heat state)
inoperative time (h) inoperative time (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℃) Operational current
of magnetic
release (A)
1.0In (cold state) inoperative time 1.20In (heat state) operative time 1.50In (heat state) operative time 7.2In (heat state) operative time
12.5≤In≤400 ≥ 2h < 2h ≤4min 2S<Tp≤10S 12In±20%
Specifications
Type Rated current
(A)
Poles Rated insulati on voltage (V) Rated
operating
voltage
(V)
Arcing
over
distance
(mm)
Ultimate short circuit breaking capacity Servies short circuit breaking capacity Operat
ing perf
ormance
(times)
On Off
NS1-100D 12.5,16,20
25,32,40,50
63,80,100
3,4 950 690 0 18 18 1500 8500
NS1-100N 25 25
NS1-100H 70 70
NS1-160D 16,20,25,32,
40,50,63,80,
100,125,160
25 25 1500 7000
NS1-160N 36 36
NS1-160H 70 70
NS1-250D 160,180,
200,225,250
25 25 1000 7000
NS1-250N 36 36
NS1-250H 70 70
NS1-400D 200,225,250,300,315,400 35 35 1000 4000
NS1-400N 45 45
NS1-400H 70 70
NS1-630D 315,350,400,500, 35 35 1000 4000
NS1-630N 45 45
NS1-630H 600,630
555,600
630,800
1000,1250
70 70 500
NS1-1200D 70 50
NS1-2500N 70 50
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