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Circuit breakers

Contributors in Circuit breakers

Circuit breakers

Ambient temperature rating

Electrical equipment; Circuit breakers

Temperature at which the continuous current rating (handle rating) of a circuit breaker is based; the temperature of the air immediately surrounding the circuit breaker which can affect the thermal ...

Close button cover

Electrical equipment; Circuit breakers

A cover which fits over the close button and blocks access to it. Access to the close button may be permitted through the use of a tool or rod inserted through a small hole in the front of the close ...

Close button

Electrical equipment; Circuit breakers

A button for manually closing the main contacts after the closing springs are charged.

Circuit breaker frame

Electrical equipment; Circuit breakers

(1) The circuit breaker housing which contains the current carrying components, the current sensing components, and the tripping and operating mechanism. (2) That portion of an interchangeable trip ...

Branch circuit

Electrical equipment; Circuit breakers

The circuit between the final overcurrent device protecting the circuit and the outlet(s).

Bell alarm

Electrical equipment; Circuit breakers

A mechanically-operated switch used to indicate the main contact position of a circuit breaker, which indicates when a circuit breaker has tripped. Also see overcurrent trip switch.

Automatic moulded case switch

Electrical equipment; Circuit breakers

A switch with construction similar to a moulded case circuit breaker except that the switch opens only instantaneously at a non-adjustable trip point calibrated to protect only the moulded case ...

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