Breaking Capacity: | Low Voltage Circuit Breakers |
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Operation: | Electric Type |
Speed: | Normal Type Circuit Breaker |
Arc-extinguishing Medium: | Air |
Installation: | Fixed |
Structure: | MCCB |
Samples: |
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Customization: |
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Suppliers with verified business licenses
1. Kangling electric Co.ltd is specializing in the R&D, manufacture and sale of low voltage electric applicants, such as MCB, MCCB, AC contactors, and other related products for 15 years.
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. Its rated insulation voltage is 690V. It can make and break the non-frequently circuit in the normal conditions. 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.
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) inoperative time (h) |
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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) |
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1.0In (cold state) inoperative time |
1.20In (heat state) operative time |
1.50In (heat state) operative time |
7.2In (heat state) operative time |
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12.5 ≤ In ≤ 400 | ≥2h | <2h | ≤4min | 2S<Tp≤10S | 12In±20% |
Type | Rated current(A) |
Poles | Rated insulation voltage(V) |
Rated operating voltage(V) |
Arcing over distance(mm) |
Ultimate short circuit breaking capacity |
Servies short circuit breaking capacity |
Operating performance (times) |
|
ON | OFF | ||||||||
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-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-250D | 160,180, 200,225, 250 |
25 | 25 | 1000 | 7000 | ||||
NS-250N | 36 | 36 | |||||||
NS-250H | 70 | 70 | |||||||
NS-400D | 200,225, 250,300, 315,400 |
35 | 35 | 1000 | 4000 | ||||
NS-400N | 45 | 45 | |||||||
NS-400H | 70 | 70 | |||||||
NS-630D | 315,350, 400,500, 600,630 |
35 | 35 | 1000 | 4000 | ||||
NS-630N | 45 | 45 | |||||||
NS-630H | 70 | 70 |
Suppliers with verified business licenses