250A 4 Poles Thermal Adjustable IEC60947-2 ELCB  

ELCB TRE SERIES Standard TRE series circuit breaker and auxiliaries comply with the following international standard: 1.IEC/EN 60947-1 Low-voltage switchgear and controlgear-part 1: General rules; 2.IEC/EN 60947-2 Low-voltage switchgear and controlgear-part 2: Circuit breakers; TRE series ELCB(Standard use environment for TRE series ELCB) 1. Ambient temperature: Within the range of -5ºC--+40ºC(However, the average for the duration of 24 hours must not exceed 35ºC); 2. Altitude: 2000m or less 3. Installation class: III 4. The magnetic field near the instalation site should not be more than five times the earth magnetic field in any direction. 5. Pollution: II Classification: According to the poles:                                          3-poles, 4-poles According to the breaking capacity:                       …