Fuses

Posted on November 24, 2019 by marp2013

A customer asked if there is a difference between UK and North American fuses. Here’s my reply:

Absolutely!  British fuses are rated by blow rate and North American by flow rate.

A 32 amp British fuse is designed to carry a current of 16 amps and will blow at 32.  An American 32 amp fuse is designed to carry a current of 32 amps and won;t blow until it is substantially higher than that.
Fit a 32 amp American fuse to your British bike and if you get a short (quite common on BSA’s from my personal experience) you will be at best buying a new harness and at worst putting out a fire.

 

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2 Responses to Fuses

  1. Jon Rooke says:
    January 28, 2020 at 8:41 pm

    That is an excellent tip!

    Reply
  2. Cam says:
    October 5, 2020 at 11:05 pm

    So, do I go with 16 amp American fuse in my 69 Commando?

    Reply

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