Breaking device for multipole electrical circuit breaker with mu

Details Breaking device for multipole electrical circuit breaker with mu Breaking device for multipole electrical circuit breaker with mu

1988-08-17

1989-10-31

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200144R, H01H 3312

Patent

active

048779296

ABSTRACT:
An arc extinguishing chamber with plates, for a high-rating low voltage circuit breaker, interrupts an arc generated by a multiple contact system having a set of movable main contacts and a movable arcing contact cooperating with corresponding stationary contacts fixed onto a contact terminal. A lower arcing horn is fixed to the terminal by means of three screws with an insulating shield interposed. A pair of jaws with an inclined portion follows the outline of the plates up to the vicinity of intermediate arc catching ridges disposed symmetrically in relation to the center line passing through the V-shaped notch.

REFERENCES:
patent: 3582966 (1971-06-01), Strobel
patent: 3749867 (1973-07-01), Rexroad
patent: 3784775 (1974-01-01), Gryctko
patent: 4086460 (1978-04-01), Gillette
patent: 4295022 (1981-10-01), Robin
patent: 4477704 (1984-11-01), Mori et al.

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