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2 Pack 20amp Buss Type T Time-Delay Fusetron Fuse
This fuse is the old style Edison base. The time delay element is a bit more robust than the cheaper TL fuse. An edision base is the same "fat" screw base used on traditional A19 size 60 watt light bulbs. The fat thread are usually brass; the "thin" white threads are ceramic and are referred to as "tamper-proof" fuses.
If you find that your old fuses keep blowing, trying this fuse might help while still protecting your home against overloads, fire, and damage. Air conditioners, washing machines, refrigerators, power tools, household heating systems and other motor-driven equipment can overload a circuit on start-up. Once a motor is going, it draws less power. The Time Delay feature will permit the circuit to operate without interruption in many (but not all) situations. If the circuit remains in an overload condition, the fuse wll blow.
Old style Edison base fuses indicate that your electrical system is decades out of date. While it is probably safe for now, you should have a licensed electrician review the existing loads in light of safety, codes, and your needs.
WHR 10.8.22