Draw-out circuit breaker

Details Draw-out circuit breaker Draw-out circuit breaker

1981-10-27

1985-01-01

Pellinen, A. D.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

200 50AA, 361338, H02B 1112

Patent

active

044918968

ABSTRACT:
An improved draw-out circuit breaker assembly for use in a switchboard with means for automatically tripping the breaker upon removal of the breaker from a fully engaged position within the switchboard and maintaining the breaker in the "TRIP" position until the terminal connectors of the breaker are separated by a predetermined distance from respectively associated connectors of the switchboard. A cam operated pivotable arm is connected to a push-to-trip button of the breaker and is biased to a first position. A cam link having an edge portion engaged with the arm and also including a cam surface is biased in a first position by the arm. A barrier surface is mounted within the switchboard to deflect the cam surface and move the link to a second position which in turn moves the pivotable arm against the bias to a second position, moving the push-to-trip button to its tripping position, which effects tripping of the circuit breaker. Each terminal connector of the breaker includes a top surface and a bottom surface which have a recessed channel area in which is secured a retaining clip having a leg extending along the longitudinal axis of a helical coil. Each channel includes a ridge portion extending perpendicular to the leg at opposite ends of the leg, with a portion of each ridge being crimped to retain the clip within the channel.

REFERENCES:
patent: 2566064 (1946-10-01), Heim
patent: 2678976 (1954-05-01), Caswell
patent: 4051335 (1977-09-01), Ericson et al.
patent: 4317160 (1982-02-01), Tillson et al.

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