Effective August 2018 Technical Data 1004 Supersedes March 2017 LPN-RK 250 Vac/dc, 70-600 A, dual element, time-delay fuses Catalog no.* LPN-RK-70SP LPN-RK-150SP LPN-RK-350SP LPN-RK-80SP LPN-RK-175SP LPN-RK-400SP LPN-RK-90SP LPN-RK-200SP LPN-RK-450SP LPN-RK-100SP LPN-RK-225SP LPN-RK-500SP LPN-RK-110SP LPN-RK-250SP LPN-RK-600SP LPN-RK-125SP LPN-RK-300SP * Open fuse indication available on all part numbers by inserting the suffix I, e.g., LPN-RK-90SPI. Requires 75Vac minimum voltage. Indicating fuses are not Vdc rated. Carton quantity 70100 A: 5 110600 A: 1 Typical applications Feeder and branch circuits Transformers Catalog symbols: Motors LPN-RK-(amp)SP (non-indicating) Solenoids LPN-RK-(amp)SPI (indicating) General purpose circuits Features and benefits Description: Industrys only UL Listed and CSA Certified fuse Ultimate protection Class RK1 dual element, with a 300 kA interrupting rating that allows for current-limiting, time-delay fuses available with simple, worry-free installation in virtually any optional open fuse indication. application. Specifications: Fast short-circuit protection and dual-element, time-delay performance provide ultimate Ratings protection. Volts 250Vac/dc* Reduces existing fuse inventory by up to 33% when upgrading to Low-Peak fuses. Amps 70-600 A Consistent 2:1 ampacity ratios for all Low-Peak IR fuses make selective coordination easy. 300kA Vac RMS Sym. Time-delay permits 130% FLA sizing for back-up 100kA Vdc motor protection. * Indicating versions not Vdc rated. Current-limitation protects downstream components against damaging thermal and Agency information magnetic effects of short-circuit currents. UL Listed, Guide JDDZ, File E4273 Protects against single-phase motor damage. CSA Certified, Class 1422-02, File 53787, Proper sizing can provide no damage Type 2 Class RK1 per CSA C22.2 No. 248.12 coordinated protection for NEMA and IEC motor CE controllers.Technical Data 1004 LPN-RK 250 Vac/dc, 70-600 A, dual element, time-delay fuses Effective August 2018 Recommended fuse blocks Catalog no. Amps 1-Pole 2-Pole 3-Pole 100 RM25100-1CR RM25100-2CR RM25100-3CR 200 RM25200-1CR RM25200-2CR RM25200-3CR 400 RM25400-1CR RM25400-2CR RM25400-3CR 600 RM25600-1CR RM25600-2CR RM25600-3CR For additional information on the RM Series of 250 volt fuse blocks, see product brochure 3192. Fuse Reducers For Class R Fuses Desired fuse (case) Catalog no. (Pairs) Equipment fuse clips size 250V 200 A 100 A NO.2621-R 100 A NO.2641-R 400 A 200 A NO.642-R 100 A NO.2661-R 600 A 200 A NO.2662-R 400 A NO.2664-R Single reducer only (pair not required). For additional information on Class R fuse reducers, see data sheet no. 1118. Dimensions in A B Amp rating A B 70-100 5.88 1.10 110-200 7.13 1.61 225-400 8.63 2.36 450-600 10.38 2.88 2 Eaton.com/bussmannseries