Table of Contents
Can you replace a 10a fuse with a 15a?
good rule of thumb is: it’s alright to use a lower rated fuse in place of a higher rated one, but not vice versa. Not sure why it’d be blowing a 10 and not a 15..
Can you use a 25 amp fuse in place of a 20 amp fuse?
Yes you can. You can replace higher rated with lower, but it will blow at the lower rating, that is earlier than the 25 amp one. But if you run your amp at a lower current draw, both can be used.
Can you use a bigger fuse than recommended?
Do not replace a blown fuse with one that has a higher amperage rating. The fuse has a specific amperage rating because it is intended to be the weak link in the circuit to protect the electrical components. A blown fuse indicates excessive current has entered the circuit.
Is a 10 Amp Fuse the same as a 15 Amp Fuse?
Yes, the 15 Amp fuse may be sized for a device in that particular circuit, and the 10 Amp fuse may be very short lived. Can I use a smaller amp fuse?
What happens if you put a 20 amp fuse on a motor?
The heat generated in a wire increases with the square of the current. Thus, an increase to 20 amps from 15 amps would increase the heat generated by 78 percent. Consider why you want to use a 20 amp fuse. If it is because the current surge when a motor starts blows the 15 amp fuse, you could replace the standard 15 amp fuse with a time delay fuse.
Can a fuse be too small?
Yes, you can always go smaller in fuse rating just for a temporary fix, of course, as soon as you can go to the store and get the proper rating fuse, the point being never put a larger rated fuse in place of a blown fuse, say a 20 amp in place of a blown 15 amp, this is a NO NO, always go smaller.
What should I do if my 15 amp fuse blows?
However, if the 15A fuse blew because of a problem in the circuit then best to replace the fuse with exactly the manufacturers specified value. If your blown fuse has a glass envelope where it is possible to inspect the element then there is something that may be learned.