This time-delay fuse from Bussmann has been designed with an optional open fuse indication on select ratings (see data sheets). Other features include the separate overload and short-circuit elements, providing time delay for sizing of high inrush loads linked with Class J current limitation, while selective coordination ratio of 2:1 (within low-peak fuse family) prevents electrical shutdowns from extending beyond the failed circuit. Series combination ratings with branch circuit breakers allows broad range of coverage, independent of breaker manufacturer. * Minimum 10sec time delay at 500% overload * Minimises needless fuse openings due to temporary overloads and transient surges * Provides back-up protection against motor burnout (from overload or single-phasing) * High interrupting rating to safely interrupt overcurrents up to 300,000A * High degree of current limitation due to the fast speed-of response to short-circuits * Faster response to damaging short-circuit currents * Reduces let-through thermal and magnetic forces * Length: 60.5mm * Diameter: 26.9mm * Nominal current: 40A * Nominal voltage: 600V AC * Manufacturer's part LPJ-40SP https://elecena.pl/product/27761268/bussmann-lpj-40sp-600v-ac-300v-dc-40a-dual-element-time-delay-fuse 2025-01-26 https://elecena.pl/product/27761268/bussmann-lpj-40sp-600v-ac-300v-dc-40a-dual-element-time-delay-fuse 2025-09-03 https://elecena.pl/product/27761268/bussmann-lpj-40sp-600v-ac-300v-dc-40a-dual-element-time-delay-fuse 2026-02-28 https://elecena.pl/product/27761268/bussmann-lpj-40sp-600v-ac-300v-dc-40a-dual-element-time-delay-fuse 2026-04-16 https://elecena.pl/product/27761268/bussmann-lpj-40sp-600v-ac-300v-dc-40a-dual-element-time-delay-fuse 2026-05-31 https://elecena.pl/product/27761268/bussmann-lpj-40sp-600v-ac-300v-dc-40a-dual-element-time-delay-fuse 2026-06-23 https://elecena.pl/product/27761268/bussmann-lpj-40sp-600v-ac-300v-dc-40a-dual-element-time-delay-fuse 2026-07-16