VM51L, MCCBs with earth leakage protection

• The circuit breaker can be equipped with a leakage alarm module to avoid major losses caused by power outages.

• The circuit breakers has two types: type L (Standard and type M(high breaking capacity) according to its rated breaking capacity(lcu), it has characteristics of compact size, high breaking capacity, short arc, anti-vibration, etc.

• The circuit breaker can be installed vertically or horizontally. The circuit breaker can't be reversed into the line, that is, only 1,3, and 5 are connected to the power line, and 2,4,and 6 are connected to the load line.

• This circuit breakers has the insulation function.

• The Circuit breakers meet the requirements of IEC 60947-2.

Conditions for normal use and the installation conditions

• Ambient temperature -5 ℃～+40 ℃
  

• Altitude: Max. 2,000

• Humidity: When the ambient air temperature is +40 ℃, the relative humidity of the air shall not be higher than 50 %, a higherrelative humidity is allowed at a lower temperature. For example, the relative humidity should be 90% when temperature is 20 ℃. Special measures should be adopted for the condensation occasionally produced due to temperature change.

• Pollution degree: 3

• Installation type: Main circut III； Others II.

• Circuit breaker is suitable for electromagnetic environment A

• The circuit breaker should be installed in a place where there is no danger of explosion and no lead dust, no enough corrosion metal and damage to insulation.

• The circuit breaker should be installed in a place where there is no wind and rain

• Storage temperature: -40 ℃～+70 ℃.

  
  

Main technical specifications