Electric switch, more particularly a current-limiter

Details Electric switch, more particularly a current-limiter Electric switch, more particularly a current-limiter

1982-03-31

1983-08-23

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335 16, 335 26, 335189, H01H 7706

Patent

active

044006705

ABSTRACT:
An electric switch, more particularly a current-limiter, to be actuated by a control pin which indicates the OFF or the ON condition, and which can be opened also by the agency of thermomagnetic tripping mechanisms and by means of a coil. A crank lever is linked to a swinging assembly which is rockably mounted about the pin and to a rocker carrying the rod to actuate the movable contacts. The lever, to be able to permit that the contacts may be closed, must rest on a step of another lever and this resting relationship can be undone either by acting upon the pin, or by means of the tripping mechanisms and the coil. The opening by means of the tripping mechanisms takes place with a kind of "stroke trip" action, the mechanism being automatically reset during opening. The action of the tripping mechanisms is visually displayed and the reclosure of such a switch can be caused dependent from a local intervention by means of a pushbutton.

REFERENCES:
patent: 2754389 (1956-07-01), Yarrick
patent: 3808386 (1974-04-01), Strobel
patent: 3851284 (1974-11-01), Yoshino et al.
patent: 4220936 (1980-09-01), Powell

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