Determine Maximum Fuse Voltages

How do you determine the maximum operating voltage of a fuse? That's a good question, and it depends on the current load the fuse sees and if the applied voltage is AC volts or DC volts. Most applications really just boil down to the inrush current the fuse may encounter. However many applications indicate a large difference between the maximum AC voltage and the maximum DC voltage a particular fuse can handle.

A new page has been created to address the difference between maximum DC voltage and AC voltage.

How to determine if an AC fuse works at DC voltages. The new page address the issue of AC fuses working with DC voltage. Most fuse will indicate if they operate at an AC voltage, DC voltage or both. Data sheets will also indicate if there is a difference in voltages between AC or DC operation.

Pages that compliment the maximum voltage faq include;
How to Derate a Fuse.
Manufacturers of Mechanical Fuses.
Manufacturers of Circuit Breakers.
Manufacturers of Fuse Holders.
Passive Fuse Manufacturers and Surge Protection Device Manufacturers are also listed on the main Fuse manufacturers page.