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The COOPER BUSSMANN BP/S-15 is a Type S plug fuse with a 15-amp rating and built-in time delay (Fusetron) design. It is used to protect branch circuits in residential electrical panels and fused disconnect boxes. The Type S configuration includes a rejection feature that prevents the installation of a fuse with a higher amperage rating than the circuit requires, reducing the risk of overprotection errors. Licensed electricians and experienced DIYers install this fuse as a direct replacement in older screw-base fuse panels. Each carded package contains two fuses.
This fuse is suited for residential branch circuit protection in older homes and buildings that use screw-base fuse panels rather than modern breaker boxes. The time delay characteristic allows brief motor startup surge currents to pass without nuisance blowing, making it appropriate for circuits serving small motors, appliances, and general lighting loads. The carded two-pack format is practical for service calls where a spare is useful on site.
Designed as an OEM-style replacement for Type S screw-base fuse panels and fuse holders requiring a 15-amp time delay plug fuse with a rejection-style base.
Installation should be performed by a licensed electrician or a qualified individual familiar with NEC requirements for overcurrent protection. Always shut off or disconnect the load before replacing a fuse, and verify the panel is de-energized at the main disconnect before servicing. Do not substitute a Type S fuse adapter or fuse of a higher amperage rating than the circuit conductor requires. Confirm the replacement fuse amperage matches the original circuit design.
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