NDM1 Series plastic enclosure circuit breakers

NDM1 series plastic enclosure type circuit breaker (hereinafter referred to as circuit breaker) is a new type of circuit breaker designed and developed by our company with international advanced technology.This circuit breaker has the characteristics of small volume, high breaking ability, short flying arc and anti-vibration, it is the ideal product for land and ship use.Circuit breaker rated insulation voltage 690V (NDM1-63 is 500V), suitable for AC 50Hz/60Hz, rated working voltage up to 660V, rated current up to 1250A distribution network, used to distribute electrical energy and protect lines and power supply equipment from overload, short circuit, undervoltage and other faults.It can also be used for infrequent switching of circuit and infrequent starting of motor and protection of overload, short circuit and undervoltage.

The circuit breaker can be installed vertically or horizontally.

Circuit breakers conform to standard: GB 14048.2 low-voltage Switchgear and Controlgear -- Part 2: Circuit breakers.

Normal service conditions and installation conditions

• The elevation of the installation site shall not exceed 2000m;
  The ambient air temperature does not exceed +40℃, and its average temperature for 24 hours does not exceed +35℃.The lower limit of ambient air temperature is -5℃.
  Note: If ambient air temperature is above +40℃ or below -5℃, consult with the manufacturer.

  When the maximum temperature is +40℃, the relative humidity of the air does not exceed 50%, and higher humidity can be allowed at lower temperature, such as 90% at 20℃.Special measures should be taken for occasional condensation on products due to temperature changes.
  The pollution level is level 3
  Circuit breaker main circuit and installation class III, auxiliary circuit and control circuit not connected to the main circuit installation class II
  The maximum tilt of installation is 22.5 degrees
  Can work reliably when subjected to normal ship vibration.