GYCM3 DC Molded Case Circuit Breaker

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Description

The GYCM3 series is a DC molded case circuit breaker for DC circuit protection. It supports string protection applications with frame sizes up to 400A, thermal-magnetic tripping, and reliable disconnector properties for switching under load.

Main Features

  • DC molded case circuit breaker for circuit protection and isolation.
  • Rated current ranges arranged by 125, 250, and 400 frame sizes.
  • 3P 750V DC and 4P 1000V DC operating voltage options.
  • Thermal-magnetic trip type.
  • Ultimate short-circuit breaking capacity of 25kA according to IEC 60947-2.
  • Fixed and plug-in installation options.
  • Available accessories include auxiliary contact, alarm contact, shunt release, manual operation, and electric operation.

Technical Parameters

ItemSpecification
Rated current125 frame: 63A, 80A, 100A, 125A; 250 frame: 160A, 200A, 225A, 250A; 400 frame: 320A, 400A
Rated operating voltage3P 750V DC; 4P 1000V DC
Rated insulation voltage1000V DC
Rated impulse withstand voltage8kV
Ultimate breaking capacity25kA
Trip typeThermal-magnetic
Ambient temperature-20°C to +70°C
Altitude2000m
InstallationFixed, plug-in

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