Anhui, China
Business Type:
Manufacturer/Factory & Trading Company
Business Range:
Electrical & Electronics, Lights & Lighting, Manufacturing & Processing Machinery
Management System Certification:
ISO 9001
Export Year:
OEM/ODM Availability:
OEM/ODM Service
Sample Available

Moulded Case Circuit Breaker, MCCB, Breaker manufacturer / supplier in China, offering Ns Moulded Case Circuit Breaker /MCCB, AC Household Modular Contactor with Ce, Cjx7 Top Quanlity Power Contactor with Ce Certificate and so on.

Gold Member Since 2016
Audited Supplier

Ns Moulded Case Circuit Breaker /MCCB

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Min. Order / Reference FOB Price
1 Piece US $7.9-85.6/ Piece
Production Capacity: 10000PCS/Month
Transport Package: Standard Export Packing
Payment Terms: L/C, T/T, Western Union
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
Trademark: BSD
Specification: CE, ROHS, ISO9001
Origin: China, Huangshan
HS Code: 8536200000

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 
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 1110ln 20%
63 ln 1002210ln 20%
100 ln 630225-10ln 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 400224min2S Tp 10S12ln 20%

TypeRated current(A)Pole No.Rated insulating voltage (V)Rated operating voltageArcing over distance (mm)Ultimate short circuit breaking capacity(kA)Services short circuit breaking capacity(kA)Operation performance (Endurance)
NS-100D12.5, 16, 20, 25, 32, 40, 50, 63, 80, 1003
NS-160D16, 20, 25, 32, 40, 50, 63, 80, 100, 125, 160252510007000
NS-250D160, 180, 200, 225, 250252510007000
NS-400D200, 225, 250, 300, 315, 400353510004000
NS-630D315, 350, 400, 500, 600, 630353510004000

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