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GYM9HDC-6KA Miniature Circuit Breaker (MCB)

GYM9DC-6KA Miniature circuit breaker is used for DC rated voltage to 1000V, rated current to 63A line, for overload and short circuit protection, and can also be used as an infrequent operation of the line. Circuit breakers are used in DC applications such as communications and photovoltaic system.



  •  Short-circuit protection
  • Overload protection
  • Close quickly
  • high breaking capacity
  • Isolation function
  • Indication function of contact position
  • Transparent cover designed to carry label.
  • Support 35mm Din – rail installation
  • Support top incoming and bottom outgoing wiring type, or bottom incoming and top outgoing wiring type.
  • Able to select electrical accessories and achieve distant indication of MCB condition: breaking, closed, and fault tripping.
  • Able to select electrical accessories and realize under-voltage and over-voltage protection of MCB and distant shunt release.


Electrical features
Rated current In1-63A
Poles1P 2P 3P 4P
Rated voltage Ue1P:230/40ov~  2/3/4P:400~
Insulation voltage Ui500V
Rated frequency50/60Hz
Rated breaking capacity6000A
Rated impulse withstand voltage(1.2/50)Uimp6kV
Dielectric test voltage at and find. freq.for 1min2kV
Pollution degree2
Thermo-magnetic release characteristicB C D
Electrical life8000
Mechanical life10000
Contact position indicatorYes
Protection degreeIP20
Reference temperature for the setting of the thermal element3o℃
Ambient temperature (with daily average s35C)-5~+40℃
Storage temperature-25~+70℃
Terminal connection typeCable/U-type busbar/Pin-type busbar
Terminal size top/bottom for cable25mm²
Tightening torque3.0N*m
MountingOn DIN rail FN 60715(35mm)
by means of a fast clip device
ConnectionTop and bottom
Combination with accessories
Auxillary contactYes
alarm contactYes
Shunt releaseYes
Under-voltage releaseYes
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