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.

Technical Parameters

Electrical features
Rated current In 1-63A
Poles 1P 2P 3P 4P
Rated voltage Ue 1P:230/40ov~  2/3/4P:400~
Insulation voltage Ui 500V
Rated frequency 50/60Hz
Rated breaking capacity 6000A
Rated impulse withstand voltage(1.2/50)Uimp 6kV
Dielectric test voltage at and find. freq.for 1min 2kV
Pollution degree 2
Thermo-magnetic release characteristic B C D
Electrical life 8000
Mechanical life 10000
Contact position indicator Yes
Protection degree IP20
Reference temperature for the setting of the thermal element 3o℃
Ambient temperature (with daily average s35C) -5~+40℃
Storage temperature -25~+70℃
Terminal connection type Cable/U-type busbar/Pin-type busbar
Terminal size top/bottom for cable 25mm²
Tightening torque 3.0N*m
Mounting On DIN rail FN 60715(35mm)
by means of a fast clip device
Connection Top and bottom
Combination with accessories
Auxillary contact Yes
alarm contact Yes
Shunt release Yes
Under-voltage release Yes