Re: To Fuse or Not Fuse?

Posted by HH56 On 2012/7/29 8:43:48

Agreed on the protection. It should have something and fuse would be safest. However, if you do want a circuit breaker get a type II or even better for this use, type III breaker.

Just for reference on breakers:

Type I, fully automatic reset. Avoid that type in this application.

Type II, once popped is reset by cutting the power feeding it -- for example turning the key off, waiting a bit and then back on.

Type III does not reset. You have to find and push a button on the breaker to reset it.

Napa and probably the usual others carry a few in each style. The card or packaging will specify the type -- usually located somewhere close to the value although they may call them something else such as semi automatic or manual. There are numerous online sources if the local store doesn't stock a particular value.