Electromagnetic switching apparatus, particularly motor contacto

Details Electromagnetic switching apparatus, particularly motor contacto Electromagnetic switching apparatus, particularly motor contacto

1975-02-06

1976-03-02

Harris, G.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Multiple contact type

335202, H01H 6702

Patent

active

039421430

ABSTRACT:
A switching apparatus of the kind in which contact bridges held in a contact bridge carrier in tiers, one behind the other, as seen in the switching direction, can be brought into contact with fixed contact members fastened to a single housing part. In particular, with the number of the bridges in the individual tiers uneven in number, the walls of the housing, which form at least in part the arcing chambers for the contact points of the contact members, extend into slots of the contact bridge carrier to form labyrinths and, at least one of said walls extends over only one tier. Additionally, the contact points of the upper tier are arranged, preferably, in recesses of the contact bridge carrier.
The present switching apparatus has the advantage that it permits accomodating in one molded housing, for instance, three main switch poles and four auxiliary switch poles.

REFERENCES:
patent: 3304522 (1967-02-01), Gribble et al.

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