Effective August 2018 Technical Data 1002 Supersedes March 2017 LPS-RK 600 Vac/300 Vdc, 70-600 A, dual element, time-delay fuses Catalog no.* LPS-RK-70SP LPS-RK-150SP LPS-RK-350SP LPS-RK-80SP LPS-RK-175SP LPS-RK-400SP LPS-RK-90SP LPS-RK-200SP LPS-RK-450SP LPS-RK-100SP LPS-RK-225SP LPS-RK-500SP LPS-RK-110SP LPS-RK-250SP LPS-RK-600SP LPS-RK-125SP LPS-RK-300SP * Open fuse indication available on all part numbers by inserting the suffix I, e.g., LPS-RK-90SPI. Requires 75Vac minimum voltage. Indicating fuses are not Vdc rated. Carton quantity 1 Typical applications Feeder and branch circuits Motors Transformers Catalog symbols: Solenoids LPS-RK-(amp)SP (non-indicating) General purpose circuits LPS-RK-(amp)SPI (indicating) Features and benefits Description: Ultimate protection Class RK1 current- Industrys only UL Listed and CSA Certified fuse limiting, dual element, time-delay fuses available with a 300kA interrupting rating that allows for with optional open fuse indication. simple, worry-free installation in virtually any application. Specifications: Fast short-circuit protection and dual-element, Ratings time-delay performance provide ultimate protec- tion. Volts Reduces existing fuse inventory by up to 33% 600 Vac when upgrading to Low-Peak fuses. 300 Vdc* Consistent 2:1 ampacity ratios for all Low-Peak Amps 70-600 A fuses make selective coordination easy. IR Time-delay permits 130% FLA sizing for back-up 300 kA Vac RMS Sym. motor protection. 100 kA Vdc Current-limitation protects downstream compo- nents against damaging thermal and magnetic * Indicating versions not Vdc rated. effects of short-circuit currents. Agency information Protects against single-phase motor damage. Proper sizing can provide no damage Type 2 UL Listed, Guide JDDZ, File E4273 coordinated protection for NEMA and IEC motor CSA Certified, Class 1422-02, File 53787, Class controllers. RK1 per CSA C22.2 No. 248.12 CETechnical Data 1002 LPS-RK 600 Vac/300 Vdc, 70-600 A, dual element, time-delay fuses Effective August 2018 Recommended fuse blocks Current-limitation curves B Catalog no. 400,000 Amps 1-Pole 2-Pole 3-Pole 100 RM60100-1CR RM60100-2CR RM60100-3CR 200 RM60200-1CR RM60200-2CR RM60200-3CR 400 RM60400-1CR RM60400-2CR RM60400-3CR 100,000 600 RM60600-1CR RM60600-2CR RM60100-3CR For additional information on the RM600 600 volt fuse blocks, see 600A product brochure no. 3192. 400A Fuse reducers for Class R fuses 200A Desired fuse (case) Catalog no. (pairs) 100A Equipment fuse clips size 600V 200 A 100 A NO.2621-R 10,000 100 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 A Single reducer only (pair not required). For additional information on Class R fuse reducers, see data sheet 1000 no. 1118. Dimensions in RMS SYMMETRICAL CURRENT IN AMPS A-B = ASYMMETRICAL AVAILABLE PEAK (2.3 X SYM RMS AMPS) A Current-limiting effects Prosp. S.C.C. Let-through current (apparent RMS Sym. vs. fuse rating) 100A 200A 400A 600A B 1000 1000 1000 1000 1000 2000 2000 2000 2000 2000 Fuse amps A B 3000 2000 3000 3000 3000 5000 2000 3000 5000 5000 70-100 7.88 1.11 10,000 3000 4000 7000 10,000 110-200 9.63 1.61 15,000 3000 5000 8000 11,000 225-400 11.63 2.36 20,000 3000 5000 9000 12,000 450-600 13.38 2.88 25,000 4000 6000 9000 12,000 30,000 4000 6000 10,000 13,000 35,000 4000 6000 10,000 13,000 40,000 4000 6000 10,000 14,000 50,000 5000 7000 11,000 15,000 60,000 5000 7000 12,000 15,000 70,000 5000 8000 13,000 16,000 80,000 5000 8000 13,000 16,000 90,000 5000 8000 13,000 17,000 100,000 6000 9000 14,000 17,000 150,000 6000 10,000 15,000 19,000 200,000 7000 11,000 16,000 21,000 250,000 7000 12,000 17,000 22,000 300,000 7000 12,000 18,000 23,000 2 Eaton.com/bussmannseries INSTANTANEOUS PEAK-LET-THROUGH CURRENT IN AMPS 1000 10,000 100,000 200,000 300,000 AMP RATING