# Can I use 250V fuse instead of 125V?

### What is the difference between 125 volt and 250 volt?

They are called hot wires because they are the wires used to carry the electricity. When you have two hot wires, you have two sources of 125 volts. … If it requires 250 volts, then both hot wires will be used. Only the necessary voltage will be used by your application and the adapter.Dec 5, 2018

### Can you replace a fuse with a higher voltage?

Yes. The voltage rating on a fuse tells you how high a voltage it can interrupt without arcing or otherwise allowing current to continue to flow after the fuse blows. A fuse of equal or higher voltage rating is fine as a replacement (after fixing whatever caused the old fuse to blow).Dec 29, 2018

### Can I use a 240v fuse in a 12V circuit?

240 volts may be the maximum safe voltage rating for it. 15 amps is 15 amps, and it will be quite OK to use with 12 volts.

### What happens if you use a higher voltage fuse?

If you use a higher voltage rated fuse the clearing time will be increased above the fuses specification. In the worst case a longer clearing time could result in damage to the power source and wiring, the device being protected, or both.

### Can I put a 250 V fuse instead of 125V?

For example, a 125V fuse can be replaced with a 250V fuse of equal amplitude while the voltage of the application is 250V or lower, but a a 250V fuse can’t be replaced with a 125V fuse of equal amplitude if the voltage of the application exceeds 125V.

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### Can I use a 32 volt fuse in place of a 250 volt fuse?

Question: Will this 250v 4 amp fuse work to replace a 4amp 32v fuse (in an old amplifier/receiver)? … 250V is the max current the fuse can take, it is fine as long as that rating is at or above the current being passed through the fuse, in this case 32V. Howver for amps, you should use slow blow.

### Can I use a 250V fuse?

The 250V fuse can sustain a higher voltage before it arcs over. So yes, you can use a 250V fuse in place of a 125V fuse as long as the current rating is the same. Also, watch out for other fuses that are fast acting or slow blowing types.

### Does voltage matter in fuses?

Is the voltage rating important? Yes, very important! The voltage rating of the selected fuse must be greater than or equal to the circuit voltage. Since fuses have such low resistance, the voltage rating becomes critical only when the fuse is trying to open.

### What is difference between 125 volt and 250 volt fuse?

Once the fusible wire inside the fuse burns open, a 125V fuse is more prone to arc across the blown leads inside the fuse. The 250V fuse can sustain a higher voltage before it arcs over. So yes, you can use a 250V fuse in place of a 125V fuse as long as the current rating is the same.

### What rating should a fuse be?

A fuse should be de-rated by 25% at room temperature, meaning if there is a 7.5 amp circuit, a 10 amp fuse should be used at 25˚C. Voltage ratings on a fuse can be higher than the voltage on the circuit, but not lower. At the end of the day, a simple fuse is a great way to effectively protect a circuit.Oct 3, 2017

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