Fuse Question

lovefist · #1 01-17-2011, 12:34 PM

If an amp manual says 120V: 5amp. 240V:2.5amp Slow Blow 5x20mm?

Would it be feasible to use this http://www.radioshack.com/product/in...ductId=2102763

ddnidd1 · #2 01-17-2011, 01:15 PM

Dizzy_G · #3 01-17-2011, 01:25 PM

Do fuses not protect against current?

250v T5.0A fuse is okay in my book to replace the 120v blown one (assuming it is still on 120v supply)

lovefist · #4 01-17-2011, 03:30 PM

The fuse is not blown, I was just looking for backups (just in case something happens). Radioshack doesn't even carry this type of fuse. The manual just seems to say 5.0A slow blow...so is the one listed ok even though the volt is 250?

billfitzmaurice · #5 01-17-2011, 03:33 PM

Quote:

Originally Posted by lovefist

The fuse is not blown, I was just looking for backups (just in case something happens). Radioshack doesn't even carry this type of fuse. The manual just seems to say 5.0A slow blow...so is the one listed ok even though the volt is 250?

The voltage doesn't matter, it's the ampere rating that counts.

lovefist · #6 01-18-2011, 08:46 AM

Quote:

Originally Posted by billfitzmaurice

The voltage doesn't matter, it's the ampere rating that counts.

Psh it's like this guy thinks he knows about speakers or something.....(reads name)......Oh.

billfitzmaurice · #7 01-18-2011, 09:38 AM

Quote:

Originally Posted by lovefist

Psh it's like this guy thinks he knows about speakers or something.....(reads name)......Oh.

What's confusing you is that the manual is referring to the power supply voltage, not the fuse voltage. If you're on a 110-120v supply you need a 5A fuse.

dmrogers · #8 01-18-2011, 09:54 AM

Quote:

Originally Posted by billfitzmaurice

The voltage doesn't matter, it's the ampere rating that counts.

+1

I always keep backup fuses for all of my equipment, and you are right, RS doesn't have the 110 fuses, I just recently bought a pack just like you show. Match them up to the amperage like Mr. Fitzmaurice said.

lovefist · #9 01-18-2011, 12:25 PM

Quote:

Originally Posted by dmrogers

+1

I always keep backup fuses for all of my equipment, and you are right, RS doesn't have the 110 fuses, I just recently bought a pack just like you show. Match them up to the amperage like Mr. Fitzmaurice said.

Cool deal, the ones I found on the site work? They seem common enough so I can go get them today.

Rick Auricchio · #10 01-18-2011, 06:30 PM

The voltage rating of the fuse is its maximum voltage. It will work just fine on a lower voltage. Hence 240v/5a fuses are fine for a 120v/5a application.