Project Description

FW-NSX Moulded Case Circuit Breaker

Introduction

MCCB (Molded case circuit breaker) is between air circuit breaker, miniature circuit breaker of a circuit breaker, it in many fields are widely used, such as industrial fields, the field of architecture, water conservancy and hydropower. Molded case circuit breaker mainly installed in low-voltage cabinet used as intermediate distribution using, some in small distribution box or mounted directly on the wall as the direct distribution of some of the load.

Molded case circuit breakers, also known as MCCB, were designed for the purpose of protecting an electrical circuit from becoming damaged.

Application of MCCB

MCCB (Molded case circuit breaker) is between air circuit breaker, miniature circuit breaker of a circuit breaker, it in many fields are widely used, such as industrial fields, the field of architecture, water conservancy and hydropower. Molded case circuit breaker mainly installed in low-voltage cabinet used as intermediate distribution using, some in small distribution box or mounted directly on the wall as the direct distribution of some of the load

MCCB with air circuit breaker and leakage circuit breaker, generally has three types, one with short circuit and overload protection function. Two, with leakage protection function. Three, with short circuit, overload, leakage protection function. Can protect lines and power equipment from damage.

With overcurrent tripping device, undervoltage release (or delay), shunt tripping device, locking and tripping device. Appropriate decision switch, general protection transformer and large capacity power distribution line. With the handle, the lever, the electromagnet, the motor, the air pressure, the hydraulic energy storage type, the non energy storage type and the intelligent operation and so on.

Type Pole number Rated insuiating
voltage(V)
Rated operating
voltage(V)
Ultimate short circuit
breaking capacity(KA)
Servies short
circuit breaking
capacity(KA)
FW-NSX-100N 3,4 750 690 and below 25 25
FW-NSX-100H 70 70
FW-NSX-100L 150 150
FW-NSX-160N 36 36
FW-NSX-160H 70 70
FW-NSX-160L 150 150
FW-NSX-250N 36 36
FW-NSX-250H 70 70
FW-NSX-250L 150 150
FW-NSX-400N 45 45
FW-NSX-400H 70 70
FW-NSX-400L 150 150
FW-NSX-630N 45 45
FW-NSX-630H 70 70
FW-NSX-630L 150 150
Type Rated current(A) Note
FW-NSX-100 12.5,16,20,25,32,40,50,63,80,100 T adjustable(0.8~1 In)
M adjustable(5~10In)
FW-NSX-160 16,20,25,32,40,50,63,80,100,125,160
FW-NSX-250 160,180,200,225,250
FW-NSX-400 315,350,400
FW-NSX-630 400,500,630
FW-NSX-1250 80,010,001,250 T adjustable(0.8~1 In)
M fixed
FW-NSX-1600 100,012,501,600

 Front Page  Title Document Type Download
circuit-breaker Circuit Breaker Catalogue
5.12MB

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