Abstract: A U-shaped hinge element used to pivotally mount a door to a cover dead front of an enclosure for circuit breaker handles of a load center. The hinge element has spaced-apart wall members, and is characterized by having a projection formed out of the surface of a first wall member which positively engages a back surface of the cover dead front to partially retain the one wall member when the hinge element is initially inserted into the cover dead front and by having laterally opposed, bendable tab means formed out of the surface of a second wall member which are manually bent after the hinge element is inserted into the dead front cover. Converging slots are formed in the second wall member to form the bendable tab means, and the hinge element is made of stainless steel.

Abstract: One end of an internal barrier assembly is attached to a forward side of a cabinet below a door of the cabinet by bolt and nut fasteners threadably assembled together at the exterior of the cabinet to be readily visible to an observer inspecting similar bolt and nut fasteners for the cabinet door, all such fasteners preferably being disposed on a common face of the cabinet. The bolt and nut fasteners have holes therein through which a wire loop of a lead security seal is wound and the integrity of all seals may be visibly observed without opening the door.

Abstract: Plug-on enclosed fusible switches, enclosed lug devices and non-enclosed molded case circuit breakers are attached to a panelboard in a single or side-by-side double row. Spring biased latches retain the devices to the panelboard. Locating notches on the panelboard locate the devices at incremental spacing to provide a variable, compact arrangement for the devices. Filler plates and end structures on the devices cooperate with a cover for the panelboard to provide an integral dead front. The panelboard is particularly adapted for field assembly, including attachment of a main feed device which effects a plug-on feed in either a single or electrically parallel double panel arrangement.

Abstract: Plug-on enclosed fusible switches, enclosed lug devices and non-enclosed molded case circuit breakers are attached to a panelboard in a single or side-by-side double row. Spring biased latches retain the devices to the panelboard. Locating notches on the panelboard locate the devices at incremental spacing to provide a variable, compact arrangement for the devices. Filler plates and end structures on the devices cooperate with a cover for the panelboard to provide an integral dead front. The panelboard is particularly adapted for field assmebly, including attachment of a main feed device which effects a plug-on feed in either a single or electrically parallel double panel arrangement.

Abstract: An L-shaped member (20) is secured adjacent a fuse clip (12) to extend forwardly along one side of a fuse (F) received in that fuse clip. A flexible insulating strap (24) is secured to the outer end of the forwardly projecting post (20a) to lie within a groove (20e) in the post and extend rearwardly around the back side of the fuse and then forwardly along an opposite lateral side of the fuse. Pulling the free end of the strap (24) upwardly or forwardly causes that end of the fuse to be rolled forwardly of the fuse clip with a mechanical advantage.