Victor G Fraulo

US Patent:

50381210, Aug 6, 1991

Filed:

Jul 27, 1990

Appl. No.:

7/558909

Inventors:

Victor G. Fraulo - Rocky Hill CT
David J. Lesslie - Plainville CT
Michael C. Guerrette - Plymouth CT
Andrew M. Candelora - East Haven CT
Dennis J. Doughty - Plainville CT

Assignee:

General Electric Company - New York NY

International Classification:

H01H 7312

US Classification:

335 17

Abstract:

An operating handle assembly for molded case circuit interrupters is robotically assembled to the circuit breaker operating mechanism without requiring any auxiliary fastening device. A visual access slot in the circuit breaker cover allows the condition of the circuit breaker contacts to be visually ascertained by use of colored indicia carried by the operating handle skirt. A slidably mounted handle shutter cooperates with the operating handle to prevent egress of arc exhaust gases in the event the circuit breaker contacts are closed or opened during overcurrent conditions when the circuit breaker is installed within an industrial power distribution circuit.