Fused disconnect switch

Details Fused disconnect switch Fused disconnect switch

1994-05-20

1996-09-24

DeBoer, Todd

Electricity: electrical systems and devices

Safety and protection of systems and devices

Circuit interruption by thermal sensing

361119, 361124, 337265, H02H 504

Patent

active

055596622

ABSTRACT:
A fused disconnect switch including a plurality of maintenance and installation enhancing features is disclosed. For example, a bipolar LED is provided as an alarm indicator so that the fused disconnect switch will function in power distribution systems which operate on both positive and negative voltages. Additionally, a manual test tab is provided for checking the alarm circuitry and a viewing window is provided so that the presence or absence of a fuse in the fused disconnect device can be ascertained without removing the fuse holder.

REFERENCES:
patent: 3711748 (1973-01-01), Dietz
patent: 3806845 (1974-04-01), Zubaty et al.
patent: 3924914 (1975-12-01), Banner
patent: 4365226 (1982-12-01), Barry et al.
patent: 4499447 (1985-02-01), Greenberg
patent: 4654743 (1987-03-01), Ruehl et al.
patent: 4692833 (1987-09-01), Chung
patent: 4958254 (1990-09-01), Kidd et al.
patent: 5113169 (1992-05-01), Ruehl et al.
patent: 5140115 (1992-08-01), Morris
patent: 5390065 (1995-02-01), Allina et al.

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