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Thread: Class II, Division 1, Group G - Wireless Mouse

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    Class II, Division 1, Group G - Wireless Mouse

    I have an application with a Class II, Division 1 (I.S.) Monitor in an X-Purged Enclosure. Can I use a regular USB mouse in the Hazardous Location and still conform to code?

    Thanks!

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    Quote Originally Posted by katan840df View Post
    I have an application with a Class II, Division 1 (I.S.) Monitor in an X-Purged Enclosure. Can I use a regular USB mouse in the Hazardous Location and still conform to code?

    Thanks!
    I don't see how unless the mouse is connected to a USB port that is IS.
    Bob

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    Quote Originally Posted by petersonra View Post
    I don't see how unless the mouse is connected to a USB port that is IS.
    Or you put the mouse inside a purged glove box?

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    Quote Originally Posted by GoldDigger View Post
    Or you put the mouse inside a purged glove box?
    I suppose.
    Bob

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    I'm going to concur with Bob's original proposal. Putting the mouse in a purged box would pretty much render it unavailable for practical use.

    There are both NI and/or IS, I/O USB (and other) interfaces available for "standard" computers.

    It is important to emphasize that proper housekeeping is actually a major component of determining Class II classifications, especially Group G. It isn't too difficult to render the location around the mouse, unclassified altogether.
    "Bob"
    Robert B. Alexander, P.E.
    Answers based on 2017 NEC unless otherwise noted.

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    Quote Originally Posted by katan840df View Post
    I have an application with a Class II, Division 1 (I.S.) Monitor in an X-Purged Enclosure. Can I use a regular USB mouse in the Hazardous Location and still conform to code?

    Thanks!
    May I know which brand/ model of the monitor you are using for Class 2 Div 1, carbon dust. I am looking for an HMI in this area. Thanks

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