mccbmoulded case circuit breaker mccb

Moulded Case Circuit Breaker  dc circuit breaker circuit breaker

APPLICATION

  MTM45 series intelligent circuit breaker (hereinafter referred to as breaker) is suitable for the
circuit of AC 50/60Hz with rated voltage 400V, 690V and rated current up to 6300A .It is mainly
used to distribute electric energy and protect circuit and power supply equipment from overload,
under-voltage short-circuit ,and single-phase earthing .With intelligent and selective protection
functions, the breaker can improve the reliability of power supply, and avoid unnecessary power
failure The breaker is applicable for power stations, factories, mines(for 690V) and modern
high-building, especially for the distribution system of intelligent building.The breaker conforms to IEC60947-2. The whole series have past CCC certification and CE
certification.  

ENVIRONMENT CONDITIONS FOR OPERATION
Temperature condition:-5~C~+40~C ; the average value within 24h not exceed +35~C.Elevation: altitude of installation place shall not exceed 2000m.Atmosphere condition: relative humidity at +40~C shall not exceed 50%. Higher humidity is permissible at lower temperature condition. When the higher monthly average relative humidity is 90% in the humiddest month, the lowest monthly average temperature of this month is +25~C.And consider the influence of dew on product surface due to temperature changes.
Pollution grade: grade

The breaker should be installed according to the requirement on the instruction manual: the
vertical inclination degree shall not exceed 5°

SPECIFICATION