Re: size of fuse
If that's the case (takes a 40A), Then:<br /><br />1) could the circuit have been drawing less than 30A but still have heated the fuse up to the point where it melted the holder? That can sure happen if your fuse it too big for the circuit but in your case it was too small.<br /><br />2) is the fuse defective and was the circuit actually drawing over 30A?<br /><br />3) Is the fuse holder under-rated for the circuit it is being used in? <br /><br />mollycat, how comfortbale are you with troubleshooting this? If I were you, I would be concerend until I got to the bottom of this. Safety 1st, 2nd and 3rd. I wouldn't simply stick a 40A in there and move on until I understood what happened and that it was safe to do so. JMHO