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GYM9N High Breaking Miniature Circuit Breaker

GYM9N high breaking capacity small circuit breaker is mainly used in AC 50Hz/60Hz, rated working voltage 230V/400V, rated current to 40A and below. Normally, it can also be used as an infrequent disconnection and conversion of lines. Circuit breakers are mainly used in industrial, commercial, high-rise buildings, household and other places.

SKU GYM9N Categories ,



  • 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 In 1-40A
Poles 1P+N
Rated voltage Ue  230V
Insulation voltage Ui 400V
Rated frequency 50/60Hz
Rated breaking capacity 6kA
Rated impulse withstand voltage(1.2/50) Uimp 4kV
Dielectric test voltage at and ind. freq.for 1min 2.5kV
pollution degree 2
Thermo-magnetic release characteristic B、C、D
Electrical life 4000
Mechanical life 10000
Contact position indicator Yes
Protection degree IP20
Reference temperature for setting of thermal element 30℃
Ambient temperature (with daily average ≤35℃) -5~+40℃
Storage temperature -25~+70℃
Terminal Connection type Cable/Busbar
Terminal size top/bottom for cable 10mm2
Tightening torque 2.0N
Connection Top and bottom
Combination with accessories
Auxiliary contact Yes
Alarm contact Yes
Shunt release Yes
Under voltage release Yes


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