Bussmann 20A SL Plug Fuse, 4-Pack is designed as a medium-duty time delay fuse with a loaded link rejection base, i for residential motor circuits. This fuse is for use in kitchen, garage, utility room circuits, or any circuit containing electric motors, relays, or solenoids. Its porcelain threads feature a tamper-proof base that prevents the use of a larger amp fuse, ensuring safety and compliance. The extra-large clear window allows for easy inspection to see if the fuse has blown. Rated at 125V AC with a 10,000 A.I.C. capacity, this UL-listed fuse reliable protection. Each pack contains four fuses, making it convenient for multiple uses. Model Number: SL-20PK4