Medium-duty time delay, loaded link rejection base SL fuse for residential motor circuits. Ideal for use in kitchens, garages, utility room circuits, or any circuit that contains electric motors, relays, or solenoids. Porcelain threads (Tamper proof base) prevent a larger amp fuse from being used. Extra large clear window makes it easy to see if fuse is blown. 125V AC, 10,000 A.I.C. UL (Underwriter’s Laboratories) listed.