Compact fused disconnect switch

Details Compact fused disconnect switch Compact fused disconnect switch

2006-05-23

2006-05-23

Wu, Daniel (Department: 2632)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S657000, C340S815400

Reexamination Certificate

active

07049973

ABSTRACT:
A fused disconnect switch assembly includes a pull out fuse assembly and a switch housing assembly. The fuse assembly includes a line side conducting portion, a load side conducting portion, and a fuse element therebetween. The switch housing assembly includes a fuse receptacle for receiving the fuse, a first contact assembly coupled to the line side conducting portion of the fuse and a second contact assembly coupled to the load side conducting portion of the fuse when the fuse is inserted into the receptacle. An open fuse indication device is in communication with conducting portions of the fuse, and an alarm terminal output extends from the switch assembly housing and is in communication with the open fuse indication device. The open fuse indication device provides local fuse state indication and the alarm terminal output facilitates remote fuse state indication when coupled to external circuitry.

REFERENCES:
patent: 4499447 (1985-02-01), Greenberg
patent: 4772219 (1988-09-01), Falchetti
patent: 5559662 (1996-09-01), Happ et al.
patent: 5701118 (1997-12-01), Hull et al.
patent: 5841337 (1998-11-01), Douglass
patent: 6317311 (2001-11-01), Middlehurst et al.
patent: 6696969 (2004-02-01), Torrez et al.
patent: 04-275018 (1994-04-01), None
patent: 07-182600 (1997-02-01), None

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