Bussmann BP/SC-20 20 Amp Time-Delay Class G Melamine, 600V UL Listed Carded, 2-Pack Tube Product Description Bussmann BP/SC-20 20 Amp Time-Delay Class G Melamine Tube, 600V UL Listed Carded, 2-Pack From the Manufacturer Specialty Class G SC Rejection Fuse. These highly compact branch circuit fuses are used in residential, mobile home and industrial applications. They have a minimum 300 volt rating and are available up to 60A. All SC fuses are 13/32-Inch in diameter with varying lengths to provide a rejection feature that prevents over fusing (Example: installing a 30 amp fuse in a 20amp circuit). One half to 6 amp SC fuses are fast-acting, while 7 to 60A SC fuses are time-delay to permit temporary overloads to pass without nuisance openings. Cartridge fuses are used to protect motors and branch circuits where higher amps or volt ratings are required. They are available in a wide variety of sizes, amp and volt ratings up to 600Vac and 600 amps. Cartridge fuses are used extensively in commercial, industrial and agricultural applications as well as residential fuse panels, air conditioning, pumps, appliances and other equipment. Cartridge fuses are available in two types. General Purpose fuses have no time-delay and protect fuse panels, appliances and branch circuits. Heavy- Duty fuses have a time-delay feature, allowing momentary motor startups. Both are available in 250Vac and 600Vac versions with catalog symbol and amp rating stamped on the knife blade or end cap. Features Quantity: 2 Pack 20A, Type SC Cartridge Fuse Compact, Time Lag Feature 13/32" Diameter, 300V Compact branch-circuit unit with high interrupting rating and current-limitation With 600V rating, it can be used in 120/208, 120/240 and 277/480V circuits Length variations relative to case size make this a "rejection" type fuse In general, SC fuses are about 1/3 the size of the 600V NEC fuse type Fuse has a degree of overload time-delay which permits it to pass temporary overloads. At 200% load, it has a minimum opening time of 12 seconds Compact branch-circuit unit with high interrupting rating and current-limitation With 600V rating, it can be used in 120/208, 120/240 and 277/480V circuits Length variations relative to case size make this a "rejection" type fuse In general, SC fuses are about 1/3 the size of the 600V NEC fuse type Fuse has a degree of overload time-delay which permits it to pass temporary overloads. At 200% load, it has a minimum opening time of 12 seconds USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.