Novice question regarding relays

Discussion in 'The Projects Forum' started by Oaksniffer, Apr 2, 2008.

  1. Oaksniffer

    Thread Starter New Member

    Apr 2, 2008
    Hi i know im just learning !:)

    Standard square base relay contacts have pinout numbers, these are industry standard?

    Do octal base relays have the same pinout numbers?

    EG can i in a circuit substitue an square base with an octal just by following the pinout numbers?

  2. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
    The safest thing to do would be to get the datasheet for each device and compare. Datasheets are widely available on the web. See the sticky at the top of these forums for a list of sites. John

    Edit: The sticky is on the Electronic Resources sub-forum.
  3. Pich

    Active Member

    Mar 11, 2008
    Industrial plug in type 8 and 11 pin relays have a standard pinout, usually they have the pin numbers drawn on the relay.
  4. beenthere

    Retired Moderator

    Apr 20, 2004
    One important thing to know is the internal construction of the relay. An octal base relay can be SPST, SPDT, DPST, DPDT, 3PST, 3PDT. You have to replace with a relay having the same function.