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Product Catalogue
NS series MCCB
NS 80H-MA | NS 100N 3P | NS 160N 4P |
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NS 400N 3P | NS 1250 3P |
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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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