US 4,538,879 AGranted

Movable fuse socket support for use on bus bars

AssigneeRittal-Werk Rudolf Loh GmbH & Co. KG

InventorHans Wagener

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Abstract

A movable fuse socket support including a fuse holder which is adapted to be attached to bus bars is provided on the underside of a socket plate with fastening means which cooperate with the bus bar to establish a firm connection between a separate contact plate covering the underside of the fuse holder and the bus bar. The fuse of universal contact plates suitable both for the gauge ring system and the gauge screw system is achieved in that the contact plate has a tapped bore coinciding with the center axis of the fuse holder, that adjacent the fuse holder the underside of the socket plate has a recess in which is disposed a C-shaped clamp including a setscrew which is adjustable from the uppersdie of the socket plate, that the C-shaped clamp embraces one end of the contact plate together with the bus bar which is in abutting relationship with the underside of the contact plate, that the opposite end of the contact plate is inserted into a groove provided in the socket plate and is retained therein, and that a setscrew tightens the contact plate and the bus bar relative to each other and against the lower arm of the C-shaped clamp.

Claims23

Dependent claims

A movable fuse socket support adapted to be attached to bus bars comprises a socket plate which includes a fuse holder and is provided on its underside with fastening means which cooperate with said bus bar and establish good contact between a separate contact plate covering the underside of said fuse holder and said bus bar, characterized in that said contact plate (23) has a threaded bore (24) coinciding with the center axis of said fuse holder (35), that adjacent said fuse holder (35) on said underside of said socket plate (11) a recess (34) is provided in which is disposed C-shaped clamp (29) with setscrew (27) threadedly engaged in a tapped bore (30) on the upper arm of said C-shaped clamp (29) adjustable from the upperside of said socket plate (11), that said C-shaped clamp (29) embraces one end of said contact plate (23) together with said bus bar (10) and establishes abutting contact between the underside of said contact plate (23) and the upperside of said bus bar (10), that the opposite end of said contact plate (23) is retained in groove (22) provided in said socket plate (11), and that said setscrew (27) is adjustable to tighten said contact plate (23) and said bus bar (10) relative to each other and against the lower arm of said C-shaped clamp (29).

Dependencies are inferred from the claim text.