Miniature circuit breaker with multipurpose auxiliary member

Details Miniature circuit breaker with multipurpose auxiliary member Miniature circuit breaker with multipurpose auxiliary member

1998-02-19

2000-08-15

Scott, J. R.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

200308, 335 17, 335132, H01H 7312, H01H 900, H01H 7500

Patent

active

06104265&

ABSTRACT:
Miniature circuit breaker apparatus is taught which includes side-by-side ganged cases where one of the ganged cases includes the main circuit breaker operating mechanism and contacts and where the other case includes an actuable micro-switch, which is interconnected with an indicating device for providing either a bell alarm function for the circuit breaker system or an auxiliary switch function for the circuit breaker system. The bell alarm function is provided by extending the rotatable axis of the trip mechanism of the main circuit breaker into the case of the secondary circuit breaker casing for movement of an auxiliary switch. The auxiliary switch indicates a trip function when the main circuit breaker contacts have been tripped opened, thus providing a bell alarm indication, for example. The handles of the two circuit breaker cases are also tied together, so that when the circuit breaker mechanism of the first casing is opened, the handles of the second casing are moved in conjunction therewith to also actuate the auxiliary switch by the separate actuating mechanism located in the second enclosure to provide an auxiliary switch indication that the contacts of the main circuit breaker portion are opened. Common circuit breaker components are available for use in either case, but only those components are actually utilized for the function desired.

REFERENCES:
patent: 3789169 (1974-01-01), Yazvac
patent: 3840833 (1974-10-01), Mrenna et al.
patent: 4166988 (1979-09-01), Clarcia et al.
patent: 4209761 (1980-06-01), Klein et al.
patent: 4933653 (1990-06-01), Mrenna et al.
patent: 5001315 (1991-03-01), Runyan et al.
patent: 5008645 (1991-04-01), Mrenna
patent: 5107236 (1992-04-01), Lesslie et al.
patent: 5483211 (1996-01-01), Carrodus et al.
patent: 5552755 (1996-09-01), Felio et al.

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