Patent ID: 7598629

Claim:
A circuit for indicating the presence of a remotely controlled circuit breaker connected to a control circuit for controlling a plurality of remotely controlled circuit breakers, said circuit comprising: a power supply providing power to the control circuit and a movable contact operating device for remotely operating a movable contact of a connected remotely controlled circuit breaker between an OPEN and a CLOSED position; a control switch for electrically operating the movable contact operating device of a connected remotely controlled circuit breaker, a shut off switch for stopping the movable contact operating device of a connected remotely controlled circuit breaker after the movable contact has reached one of its OPEN or CLOSED positions; a plurality of sensing resistors being electrically connected in series with each other and having an electrical connection to a common terminal of the control switch between two of the plurality of sensing resistors, thereby placing at least one of the plurality of sensing resistors electrically in parallel with the movable contact operating device of a connected remotely controlled circuit breaker and; a sensing line electrically connected between two of the plurality of sensing resistors for providing an output signal indicating weather a remotely controlled circuit breaker is or is not connected to the circuit breaker control circuit.