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Thread: UL508A Nameplate Location

  1. #1
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    UL508A Nameplate Location

    It appears in the 3rd edition of UL508A, that the nameplate needs to be on the outside of a control panel now (based on table 52.1 General Markings section). This is a definite change from the 2nd edition by removing "b". Table 52.1 "General Markings" section calls out "a", which states visible WITHOUT opening the door of the enclosure, But in reading 52.3 sounds conflicting ?. Any input ?

    52.3 The location of required markings shall be in accordance with Table 52.1. All markings, other than
    those on a diagram, shall be located so that they are visible after installation of field wiring when a cover
    or door is opened.

  2. #2
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    Quote Originally Posted by mspuddy@electro-matic.com View Post
    It appears in the 3rd edition of UL508A, that the nameplate needs to be on the outside of a control panel now (based on table 52.1 General Markings section). This is a definite change from the 2nd edition by removing "b". Table 52.1 "General Markings" section calls out "a", which states visible WITHOUT opening the door of the enclosure, But in reading 52.3 sounds conflicting ?. Any input ?

    52.3 The location of required markings shall be in accordance with Table 52.1. All markings, other than
    those on a diagram, shall be located so that they are visible after installation of field wiring when a cover
    or door is opened.
    if it is on the outside of the door it would still be visible after installation of field wiring when the door is open. I don't see any conflict.
    Bob

  3. #3
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    Quote Originally Posted by petersonra View Post
    if it is on the outside of the door it would still be visible after installation of field wiring when the door is open. I don't see any conflict.
    Same is true if the nameplate was mounted on the inside, it could still be visible when the door is open as well.......so I guess the table takes precedence over the statement

  4. #4
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    Quote Originally Posted by mspuddy@electro-matic.com View Post
    Same is true if the nameplate was mounted on the inside, it could still be visible when the door is open as well.......so I guess the table takes precedence over the statement
    You have to meet all the requirements, not just one of them.
    Bob

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