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The COOPER BUSSMANN BP/SL-A is a three-pack assortment of time delay SL plug fuses designed for residential electrical panels and fused disconnect applications. The assortment includes one 15 amp, one 20 amp, and one 30 amp fuse, covering the most common branch circuit ratings found in older screw-type fuse panels. Time delay construction tolerates brief motor startup inrush currents without nuisance opening, making these fuses well suited for circuits serving motors, appliances, and HVAC equipment. Each fuse measures 1.83 inches in length, 0.917 inches in width, and 0.417 inches in height. The set is carded for retail or job-site use.
SL plug fuses are used in residential and light commercial applications where Edison-base screw-type fuse panels are still in service. The time delay rating makes them appropriate for circuits with small motors or compressors that draw higher startup current than running current. Electricians and HVAC technicians servicing older equipment commonly stock assorted packs to cover multiple circuit ratings in a single trip. The carded format keeps the three fuses organized and clearly labeled by amperage.
Designed as an OEM-style replacement for residential and light commercial screw-type fuse panels that accept standard SL plug fuses.
SL plug fuses are installed and serviced by licensed electricians in accordance with NEC requirements for fused panelboards. Always shut off the main disconnect and verify the circuit is de-energized before removing or installing any fuse. Do not substitute a higher-amperage fuse for a lower-amperage rating — overcurrent protection must match the circuit conductor sizing. Confirm the panel accepts SL-type plug fuses before installation.
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