NM1 Molded Case Industrial Circuit Breaker 3 4 Pole 16~630A 380V 415V Icu Up To 50kA

Chint NM1 Molded Case Circuit Breaker 3, 4 Pole 16~630A 380V 415V Icu up to 50kA in compliance with IEC 60947
 
The moulded case circuit breaker will provide protection for the circuit and equipment in case of overload, short circuit and under voltage condition occurred in the power distribution circuit. Besides, it can also provide protection of overload, short circuit and under voltage for the non-frequent start of motor.
 
General
1.1 Certificates: KEMA, UKrSEPRO, EAC, RCC, EK; 1.2 Electric ratings: AC 690V,50/60HZ, 10~1250A; 1.3 Mounting mode: Vertical and horizontal; 1.4 Standard: IEC/EN60947-2
 
Operating conditions
4.1 Temperature: -5℃ ~+40℃ ; the average value within 24h shall not exceed +35℃.(please refer to coefficients on P79 for temperature compensation correction); for the circuit breaker with thermo-magnetic release, +40℃ is set to be the standard temperature for ratings. For temperature not between -5℃ ~+40℃ , please contact us for temperature compensation correction.
4.2 Altitude: not exceed 2000m (Please contact with us for reduction coefficient if altitude at the mounted site beyond 2000m).
4.3 Pollution grade: Grade 3 4.4 Air conditions At mounting site, relative humidity not exceed 50% at the max temperature of +40℃ , higher relative humidity is allowable under lower temperature. For example, RH could be 90% at +20℃ , special measures should be taken to occurrence of dews.
 
 
 
Frame size:
NM1 series moulded case circuit breaker: 63A, 125A, 160A, 250A, 320A, 400A, 630A, 800A, 1000A, 1600A
NM1 series electronic breaker: 160A, 250A, 320A, 400A, 630A, 1000A, 1600A
● Rated operational voltage: Ue (VAC): 400/415/690
● Breaking capacity code: C, S, H, R
● Number of poles: 3P, 4P
● Release type:

• thermal magnetic fixed type;

• magnetic adjustable type;

• thermal magnetic adjustable type;

• thermal and magnetic adjustable type;

• electronic type.

● Installation method: Fixed type; pulg-in type
 
Main Technical Specification