Effective August 2018 Technical Data 1003 Supersedes March 2017 LPN-RK 250 Vac/125 Vdc, 110-60 A, dual element, time-delay fuses Catalog no. LPN-RK-1/10SP LPN-RK-2SP LPN-RK-9SP LPN-RK-15/100SP LPN-RK-21/4SP LPN-RK-10SP LPN-RK-2/10SP LPN-RK-21/2SP LPN-RK-12SP LPN-RK-3/10SP LPN-RK-28/10SP LPN-RK-15SP LPN-RK-4/10SP LPN-RK-3SP LPN-RK-171/2SP LPN-RK-1/2SP LPN-RK-32/10SP LPN-RK-20SP LPN-RK-6/10SP LPN-RK-31/2SP LPN-RK-25SP LPN-RK-8/10SP LPN-RK-4SP LPN-RK-30SP LPN-RK-1SP LPN-RK-41/2SP LPN-RK-35SP* LPN-RK-11/8SP LPN-RK-5SP LPN-RK-40SP* LPN-RK-11/4SP LPN-RK-56/10SP LPN-RK-45SP* LPN-RK-14/10SP LPN-RK-6SP LPN-RK-50SP* LPN-RK-16/10SP LPN-RK-61/4SP LPN-RK-60SP* LPN-RK-18/10SP LPN-RK-8SP * Open fuse indication available by inserting the suffix I, Catalog symbols: e.g. LPN-RK-50SPI. Requires 75Vac minimum voltage. LPN-RK(amp)SP (non-indicating) Indicating fuses are not Vdc rated. LPN-RK(amp)SPI (indicating) Carton quantity 10 Description: Features and benefits Ultimate protection Class RK1 dual element, Industrys only UL Listed and CSA Certified fuse current-limiting, time-delay fuses available with with a 300 kA interrupting rating that allows for optional open fuse indication. Time-delay 10 simple, worry-free installation in virtually any seconds (minimum) at 500% of rated current (8 application. seconds for 0-30A sizes). Fast short-circuit protection and dual-element, Specifications: time-delay performance provide ultimate protection. Ratings Reduces existing fuse inventory by up to 33% Volts when upgrading to Low-Peak fuses. 250 Vac Consistent 2:1 ampacity ratios for all Low-Peak fuses make selective coordination easy. 125 Vdc* Time-delay permits 130% FLA sizing for back-up Amps 1/10-60A motor protection. IR Current-limitation protects downstream 300 kA Vac RMS Sym. components against damaging thermal and 100kA Vdc magnetic effects of short-circuit currents. * Indicating versions not Vdc rated. Protects against single-phase motor damage. Agency Information Proper sizing can provide no damage Type 2 coordinated protection for NEMA and IEC motor UL Listed, Guide JDDZ, File E4273 controllers. CSA Certified, Class 1422-02, File 53787, Class RK1 per CSA C22.2, No. 248.12 CETechnical Data 1003 LPN-RK 250 Vac/125 Vdc, 110-60 A, dual element, time-delay fuses Effective August 2018 Time-current curves - average melt Recommended fuse blocks 1/10 to 12 amps Catalog no. Amps 1-Pole 2-Pole 3-Pole 30 RM25030-1 RM25030-2 RM25030-3 60 RM25060-1 RM25060-2 RM25060-3 AMP RATING 300 For additional information on the 250 volt fuse blocks, see data sheets no. 10289. Fuse reducers for Class R fuses 100 Desired fuse (case) Catalog no. (pairs) Equipment fuse clips size 250V 60 A 30 A NO.263-R 30 A NO.213-R 100 A 60 A NO.216-R 10 200 A 60 A NO.226-R For additional information on Class R fuse reducers, see data sheet no. 1118. Dimensions in 2 3 1 0.56 0.81 1/10 to 30 A 35 to 60 A 0.1 0.01 CURRENT IN AMPS 2 Eaton.com/bussmannseries TIME IN SECONDS 0.1 0.1 0.15 0.2 0.3 0.4 .50 0.6 0.8 1 1 1.25 1.6 2 2.5 3.2 4 5 6.25 8 10 10 12 100 1000