Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Multiple contact type
Patent
1997-09-26
1999-02-16
Donovan, Lincoln
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Multiple contact type
335202, H01H 6702
Patent
active
058724982
ABSTRACT:
A resistance arrangement for an electromagnetic switching device (1) is useable for switching capacitive loads with main contact pieces (3) and auxiliary contact pieces (4). One terminal (7) of the auxiliary contact pieces (4) and one terminal (6) of the main contact pieces (3) of the same phase lie on the same side of the switching device (1) stacked on top of each other. The auxiliary contact pieces (4) switch on before the main contact pieces (3) and switch off after them. Between the terminals (6) and (7) of each phase, an ohmic resistance (8) located in a nonconductor housing (13) is connected. The resistance (8) is placed immediately under the terminal (7) of the auxiliary contact piece (4) in the existing cavity (14) of a nonconductor housing (13) expanding into the direction of the terminal (6) of the main contact piece (3). This arrangement can be easily installed and is space-saving.
REFERENCES:
patent: 4550356 (1985-10-01), Takahashi
patent: 5119261 (1992-06-01), Sonntagbauer
patent: 5677655 (1997-10-01), Hinata et al.
Allen-Bradley Company LLC
Donovan Lincoln
Horn John J.
Luettgen David G.
Miller John M.
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