HMKM1L series plastic case circuit breaker with residual current
protection is one of the new circuit breakers designed,
manufactured, developed and developed by the company using advanced
CAD/CAM/CAE technology. The rated insulation voltage is 800V, which
is suitable for infrequent switching in the circuit with AC 50Hz,
rated working voltage of AC400V and rated current of 800A and
infrequent motor starting Use. The circuit breaker has overload,
short circuit and undervoltage protection functions, which can
protect lines and power supply equipment from damage. At the same
time, it can provide indirect contact protection for people and
overcurrent protection The undetectable long-term grounding fault
may cause fire hazard and provide protection. When other protective
devices fail, the circuit breaker with rated residual action
current of 30mA can directly Contact provides additional
protection. The circuit breaker has the characteristics of small
volume, high breaking height, short flashover, anti vibration, etc.
The circuit breaker can be installed vertically (i.e. vertically)
or horizontally (i.e. horizontally). The circuit breaker shall not
reverse the incoming line, that is, only 1, 3 and 5 are allowed to
be connected to the power line, and 2, 4 and 6 are allowed to be
connected to the load line. Circuit breaker products shall meet the
following standards: IEC60947-1 and GB14048.1-2006 General
IEC60947-2 and GB14048.2-2008 Circuit Breakers and Appendix B
Circuit Breakers with Residual Current Protection The circuit
breaker is suitable for isolation, and the symbol is "". The
ambient medium temperature shall not be higher than+40 ºC and not
lower than - 5 ºC; And the 24-hour average value shall not exceed 3
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