relay mounting

Thread Starter

pradeeba

Joined Feb 27, 2008
104
Dear All,
I read in a general application guide for mounting relays. In that they have mentioned like mounting the relay so the surfaces of its contact (fixed or movable contact) are vertical prevents dirt and dust as well as scattered contact material and powedred metal from adhering to them. can anyone explain me the reason for this?
 

beenthere

Joined Apr 20, 2004
15,819
It means that the surfaces are oriented in the vertical plane so falling particles can't build up and perhaps prevent the contacts from making good contact.

Clever designers use enclosed relays. They plug into sockets or use quick disconnect terminals instead of needing to have the wiring soldered to the lugs. Extra cost is unavoidable, but much greater reliability and simplicity of replacement is significant.
 
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