NM1 Moulded Case Circuit Breaker

1. 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.
 

2. Operating conditions

2.1 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.

2.2 Altitude: not exceed 2000m (Please contact with us for reduction coefficient if altitude at the mounted site beyond 2000m).

2.3 Pollution grade: Grade 3

2.4 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.

Catalog

NM1 Moulded Case Circuit Breaker Sample.pdf