Fixed frame for a drawout electrical switch

Details Fixed frame for a drawout electrical switch Fixed frame for a drawout electrical switch

1998-11-02

2001-10-16

Thai, Xuan M. (Department: 2181)

Electrical computers and digital data processing systems: input/

Input/output data processing

C710S108000, C200S050260

Reexamination Certificate

active

06304919

ABSTRACT:

BACKGROUND OF THE INVENTION
The invention relates to a fixed frame for a drawout electrical switch, comprising indicating contacts whose state is representative of the connected or disconnected position of the switch and which are fixed on an internal face of a wall of the frame.
Electrical switches, more particularly circuit breakers or contactors, are sometimes of the drawout type. They then comprise on the fixed frame indicating contacts indicating the connected or disconnected position, and also a possible intermediate test position of the apparatus.
In known apparatuses, wiring of these indicating contacts is performed wire to wire when installation of the apparatus takes place.
SUMMARY OF THE INVENTION
The object of the invention is to achieve a device enabling the wiring to be simplified.
According to the invention, this object is achieved by the fact that the frame comprises a communication module fixed onto said wall of the frame, near the indicating contacts, the communication module being electrically connected to the indicating contacts and comprising first means for electrical connection to a communication bus, the module constituting a communication interface between the indicating contacts and the bus.
According to a development of the invention the module comprises second means for electrical connection to a communication bus for connection to an internal communication bus designed to be connected to an additional communication module securedly affixed to the switch, the second means for connection being electrically connected to the first means for connection inside the connection module. The communication module then preferably comprises guide means for guiding the internal communication bus, for example in the form of at least one groove.


REFERENCES:
patent: 4236189 (1980-11-01), Yosida
patent: 5010438 (1991-04-01), Brady
patent: 5448675 (1995-09-01), Leone et al.
patent: 5664118 (1997-09-01), Nishigaki et al.
patent: 6055144 (2000-04-01), Reid
patent: 0 133 152 A1 (1985-02-01), None
patent: 0 363 564 A1 (1990-04-01), None
patent: 0 621 670 A1 (1994-10-01), None

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