• Ns Moulded Case Circuit Breaker /MCCB
  • Ns Moulded Case Circuit Breaker /MCCB
  • Ns Moulded Case Circuit Breaker /MCCB
  • Ns Moulded Case Circuit Breaker /MCCB
  • Ns Moulded Case Circuit Breaker /MCCB
  • Ns Moulded Case Circuit Breaker /MCCB

Ns Moulded Case Circuit Breaker /MCCB

Breaking Capacity: Low Voltage Circuit Breakers
Operation: Manual Type
Speed: High-Speed Circuit Breaker
Arc-extinguishing Medium: Air
Installation: Fixed
Structure: MCCB
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Basic Info.

Model NO.
NS
Poles Number
2p ,3p ,4p
Type
Circuit Breaker
Function
Conventional Circuit Breaker
Certification
ISO9001-2000, CE, CB, CCC
Items
Ns Moulded Case Circuit Breaker(MCCB)
Rated Current
100 ~1600A
Grade Quality
A Grade
Warranty Time
2 Years
Service
OEM and ODM Service
Delivery Time
2 Weeks
Transport Package
Standard Export Packing
Specification
CE, ROHS, ISO9001
Trademark
BSD
Origin
China, Huangshan
HS Code
8536200000
Production Capacity
10000PCS/Month

Product Description


NS series CE MCCB
 
NS series moulded case circuit breaker/mccb is one of the most advanced type breakers in the world, which adopt international advanced design and manufacture fechnology. 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 +40C) Operational Current of Magnetic Release(A) 
1.05In(cold state) inoperative time(h) 1.30In(heat state) operative time(h) 
In≤ 63 ≥ 1 <1 10In+20% 
63 ≥ 2 <2 10In +20% 
100 ≥ 2 <2 5-10In+20% 

Rated Current of Release(A) Thermodynamic Release (ambient temp +40C) Operational Current of 
Magnetic 
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) 
12.5≤ In≤ 400 ≥ 2 <2 ≤ 4min S 12In+20% 

Main Technical Specifications 
Type Rated Current (A) Poles Rated Insulating Voltage(A) Rated Operating Voltage (A) Acting Over Distance (mm) Ultimate short circuit Breaker Capacity Servies Short Circuit Breaker Capacity Operating performance(times)

Rated current of release(A)
Thermodynamic release(ambient temp+40 ) Operation current of magnetic release(A)
1.05ln(cold state)
inoperative time(h)
1.30ln(heat state)
inoperative time(h)
ln 63  1 1 10ln 20%
63 ln 100 2 2 10ln 20%
100 ln 630 2 2 5-10ln 20%

Rated current of release(A) Thermodynamic release(ambient temp+40 ) Operation current of magnetic release(A)
1.0ln(cold state)
inoperative time(h)
1.20ln(heat state)
inoperative time(h)
1.50ln(heat state)
inoperative time(h)
1.0ln(heat state)
inoperative time(h)
12.5 ln 400 2 2 4min 2S Tp 10S 12ln 20%

Specifications: 
Type Rated current(A) Pole No. Rated insulating voltage (V) Rated operating voltage Arcing over distance (mm) Ultimate short circuit breaking capacity(kA) Services short circuit breaking capacity(kA) Operation performance (Endurance)
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-100L 150 150
NS-160D 16, 20, 25, 32, 40, 50, 63, 80, 100, 125, 160 25 25 1000 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-250H 70 70
NS-250L 150 150
NS-400D 200, 225, 250, 300, 315, 400 35 35 1000 4000
NS-400N 15 45
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

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