GYM1 Miniature Circuit Breaker

GYM1 miniature circuit breaker is mainly used for protection against overload and the short circuit under the AC 50Hz/60Hz, rated voltage 230V/400V, and rated current from 1 A to 63A. It also can be used for non –frequent on -and –off switch operations under normal circumstances.


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  • In compliance with IEC /EN60898-1.
  • With indicator function in the contact position.
  • The maximum connecting ability of 2 5mmwiring torque 3 N*m, applicable to a variety of installing equipment.


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Electrical features
Rated current In 1-63A
Poles 1P  2P  3P  4P
Rated voltage Ue 1P: 230/400V~     2/3/4P:400V~
Insulation voltage Ui 500V
Rated frequency 50/60Hz
Rated breaking capacity 4.5kA
Rated impulse withstand voltage(1.2/50) Uimp 6kV
Dielectric test voltage at and ind. freq.for 1min 2kV
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℃
Storage temperature -25~+70℃
Terminal Connection type Cable/ Busbar
Terminal size top/bottom for cable 25mm²
Tightening torque 3.0N*m
Connection Top and bottom
Combination with accessories
Auxiliary contact Yes
Alarm contact Yes
Shunt release Yes
Under voltage release Yes

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