relay mounting

Discussion in 'General Electronics Chat' started by pradeeba, Feb 11, 2009.

  1. pradeeba

    Thread Starter Active Member

    Feb 27, 2008
    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?
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    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.