Hold-down bracket for plug-in circuit breaker

Details Hold-down bracket for plug-in circuit breaker Hold-down bracket for plug-in circuit breaker

1982-05-03

1984-03-06

Truhe, J. V.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

361363, H02B 104

Patent

active

044357397

ABSTRACT:
An electric circuit breaker panelboard equipped for lug main connection (22,24) and having a plug-in main circuit breaker (26,28) held securely in place by bracket (36) secured to the panel (2) by a screw (38) and having a forward hook (36c) overlying a forward edge (26c) of an insulating barrier adjacent the load side connector (26b) of the breaker. The bracket (36) has a ledge (36d) overlying a mounting rail (2b) on the panel (2) in position below the hook portion (36c) such that movement of the breaker (26,28) in a direction to cause separation of the plug-in electrical connection thereof with the panelboard exerts a bending on the bracket and a compressive force on the mounting rail to resist such movement. The bracket is colored red to be clearly visible and serve as a warning against removal of the main breaker under electrical power.

REFERENCES:
patent: 2530548 (1950-11-01), Stanley
patent: 2883587 (1959-04-01), Dorfman et al.
patent: 3159771 (1964-01-01), Duvall
patent: 3174078 (1965-03-01), Koenig
patent: 3218520 (1965-11-01), Casey
patent: 3258652 (1966-06-01), Galante et al.
patent: 3611048 (1971-10-01), Shelvik

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