# Can You Replace A Fuse With A Higher Voltage?

I know from reading elsewhere that it's safe to use a fuse with a higher voltage rating when replacing one, so long as the current rating and reaction speed is the same. For example, if a fuse is rated 125V 1A, then a 250V 1A can be used. Let's say these two example fuses have a resistance of 0.153 and 0.237 ohms, respectively.

## How to choose the right overcurrent for a fuse?

1 Voltage Rating 2 Current Rating 3 Interrupting Rating 4 Temperature Derating 5 Melting Integral (I 2 t) 6 Maximum Circuit Fault Current 7 Required Agency Approvals 8 Mechanical Considerations

## Can a fuse be replaced with a higher amp?

Fuses are often chosen to serve the least robust parts in the circuit. So, you might have 20 devices on the circuit that can all handle 10 amps, but one other device that can only handle 5 amps… that circuit will have a 5 amp fuse. Because if you go over that, the one device will catch fire. Uh, no. Don't do that.

## Can a circuit be reset after a fuse is replaced?

After a circuit is de-energized by a circuit protective device, the circuit may not be manually reenergized until it has been determined that the equipment and circuit can be safely energized. The repetitive manual reclosing of circuit breakers or re-energizing circuits through replaced fuses is prohibited.

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