Plastic enclosure box for electrical apparatus

Details Plastic enclosure box for electrical apparatus Plastic enclosure box for electrical apparatus

1989-10-26

1991-11-19

Picard, Leo P.

Electricity: conductors and insulators

Boxes and housings

Hermetic sealed envelope type

174 51, 174 65R, 220 402, 220 403, H05K 500

Patent

active

050668323

ABSTRACT:
A plastic load center box economically provided by duplicate molded end sections joined by an intermediate section of uniform cross-section which is readily provided in selected lengths in either molded or extruded form. End walls receive metal inserts electrically interconnected to provide grounding when attached to grounded conduit, or plastic inserts where the load center application does not require grounded conduit. Molded end sections have formed knockouts and wire clamping tabs.

REFERENCES:
patent: 2924702 (1960-02-01), Block
patent: 3634598 (1972-01-01), Stanfield
patent: 3714369 (1973-01-01), Bunten
patent: 3728470 (1973-04-01), Maier
patent: 4708453 (1987-11-01), Fryda et al.
patent: 4710853 (1987-12-01), Reinhardt
patent: 4731501 (1988-03-01), Clark et al.

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