Cartridge Fuse

Cartridge fuses break a circuit when current exceeds a safe level, with the element sealed inside a cylindrical tube that contains the arc as it clears. Switchboard shops slot them in when a disconnect has to be fused to protect a feeder, when an old holder no longer grips a fuse tightly and heats at the clip, or when a motor circuit needs time-delay protection that will ride through inrush.

 

As an authorized electrical distributor for multiple manufacturers, we stock cartridge fuses from Bussmann, Littelfuse and Mersen across competing lines, in a full range of amperage and voltage ratings, so you can match the class the disconnect was built for, compare interrupting rating and body size across brands, and order the time-delay or fast-acting version the load needs. Same-day shipping on in-stock items ordered before 2pm local time.