Can I use a higher voltage fuse?

Yes. The voltage rating of a fuse is the maximum voltage that it can safely interrupt. If the voltage is higher than that, when the fuse blows, it may maintain the circuit by arcing internally – not a good situation.

Are 125V and 250V fuses interchangeable?

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.

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

It’s still 0 in an ideal fuse, but it’s really somewhere near 0. It’s the amount of current that passes through the fuse that determines if it will blow. 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.

Does voltage matter on a glass fuse?

Can I use a 250V fuse instead of 500v?

Yes, you can always use a fuse of a higher voltage range. You must match the amp ratings. The voltage stamped on a fuse is simply the maximum voltage that is safe for that fuse.

Can I use a 32v fuse in a 12v system?

It means a auto fuse is rated to operate with voltages up to 32 Volts, which includes 12 volt service. Therefore you shouldn’t use auto type fuses in like say 120vac applications.

What happens if you put a 2 amp fuse in a car?

Well, the old fuse is designed to blow at 1A, obviously. You run the risk of frying something if it goes above that, that’s why the fuse is there. A 2A fuse will let that current just keep running. I wouldn’t do it.

Are 100mA fuses effective for low voltage applications?

It is effective for some low voltage applications such LiPo battery protection. Thus 100mA fuses of this type rated for 250Vac are relatively useless for low voltage due to the maximum voltage drop possible when operating below the specified fusing limit.

How do I identify a small cartridge fuse?

Note: Many small cartridge fuses will have additional markings stamped on the end caps. These are usually either; a series number, a part number, or product approval markings (refer table 3 below). If you are unable to identify the fuse, please contact us.

What do the markings on a fuse cap mean?

Note: Many small cartridge fuses will have additional markings stamped on the end caps. These are usually either; a series number, a part number, or product approval markings (refer table 3 below). If you are unable to identify the fuse, please contact us. Table 3. Quality & Approval Markings on the fuse cap.