Tranformer fuse protection
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  1. #1
    Join Date
    Nov 2004
    Location
    NJ
    Posts
    72
    When installing a transformer is a in line fuse put on the load side or the line side.

  2. #2
    Join Date
    Apr 2005
    Location
    NE PA
    Posts
    698
    The line side is usually fused with the breaker or fuse at the distribution panel, unless it is not a dedicated circuit. In that case it is usually advised to fuse the primary if it is rated below the circuit protection feeding it. depending on the application, the secondary may also be fused. Mostly it depends on the type of transformer and how it is applied.

    paul

  3. #3
    Join Date
    Feb 2003
    Location
    Huntsville,AL
    Posts
    4,125
    if you want to protect the transformer, fuse the primary. use a Slo-Blow fuse at 115% of current rating on primary.

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