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Characteristics Of Circuit Breakers
Sep 04, 2018

The main characteristics of circuit breakers are: Rated voltage UE, rated current in, overload protection (IR or Irth) and short-circuit protection (Im) of the tripping current setting range, rated short-circuit-break current (industrial circuit breaker ICU; household circuit breaker ICN).

Rated operating voltage (UE): This is the voltage that the circuit breaker works under normal (uninterrupted) conditions. Rated current (in): This is the maximum current value that the circuit breaker with a dedicated overcurrent tripping relay can withstand indefinitely at the ambient temperature specified by the manufacturer, and will not exceed the temperature limit specified by the current bearing part.


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