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  • Product Overview
  • PN Molded Case Circuit Breaker
    Use and Range of Application
    The design of PN series molded case circuit breaker (hereinafter circuit breaker)indicates the newest current-limiting principle and manufacturing technology with the characteristics of compact structure, modulization, hign breaking capacity, no flashover.  It is used for infrequent exchange and startup of motor in the circuit AC 50HZ of which rated insulation voltage is 750V, rated working voltage 690V or less, rated working current up to 1250A. Cirucit Breaker has the overload, short-circuit, and undervoltage protection device, which can protect the circuit and power-supply device from damages.
    Circuit Breaker can be devided into N,S,H type.
    This circuit breaker can be installed vertically ( Erect), and horizontally installed( Level). The line of this circuit breaker can not be connected reversely, that is, 1,3,5 line connected to power line, 2,4,6 connected to the load line.
     
    This circuit breaker conforms to the standard below:
    ICE 60947-1 and GBT14048.1  Genenral Principle
    ICE 60947-1 and GBT14048.2  Low Voltage Circuit Breaker
    ICE 60947-4 and GBT14048.4 Contactor and Motor Starter
    ICE60947-5-1 and GBT14048.5 Electromechanical
    Controlling Circuit Appliance
     
    Use and Application Range
    Height above Sea Level: No more than 2000m
    Ambient Medium Temperature: not higher than +40℃,
    not lower than -5℃
    Can endure the effect of humid air and the effect of salt
    mist, oil mist and fog bacteria.
    In the place within the midium without danger of
    explosion and without corrosion of metal box, damage
    of insulation gases and conductive dust:
    No damage of rain and snow
    Pollution degree: 3
    Installation Type:



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