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US 4,899,120 AGranted
Electromagnetic contactor
AssigneeFuji Electric Co., Ltd.
InventorsShigeaki Ohtake, Kuniyuki Kogawa, Takato Hirota
Life of this patent
Estimating the term…
Abstract
An electromagnetic contactor includes an arc-extinction cover that prevents an electric arc generated during the disconnection of a fixed contact and a movable contact for bridging adjacent fixed contacts. A removable terminal cover serves to cover terminal screws attached to the fixed contacts. The arc-extinction cover and the terminal cover are separate from the contactor body and are attachable and detachable.
Claims10
An electromagnetic contactor comprising:
- a contactor body;
- a plurality of fixed contacts, each of said fixed contacts having a terminal end and a contact end;
- a plurality of movable contacts, each of said movable contacts being associated with a different one of said fixed contacts for making selective electrical connection at a contact point with said contact end of said associated fixed contact;
- and
- selectively removable arc-extinction cover means for preventing electrical arcing between said contact point and said terminal end of said fixed contacts, said arc-extinction cover means being detachably secured to said contactor body, said movable contacts making said selective electrical connection when said cover means is attached to and detached from said contactor body, said cover means being removable to allow selective inspection, cleaning, and removal of each of said movable contacts.
2 more elements
Dependencies are inferred from the claim text.