BUSSMANN Effective May 2016 Technical Data 1018 Supersedes July 2013 SERIES Fusetron 600V Class RK5 FRS-R 600 Vac/300 Vdc, 65-600 A, dual element, time-delay fuses Catalog symbol: Features: FRS-R-(amp) Provides motor overload, ground fault and short-circuit protection. When used in circuits subject to surge currents such as Description: those caused by motors, transformers and other inductive components, these fuses Advanced protection, energy efficient Class RK5 can be sized close to full-load amps to give dual element, current-limiting, time-delay fuses. maximum overcurrent protection Time-delay 10 seconds (minimum) at 500% of rated current. The time-delay feature makes it possible to use fuse amp ratings which are much smaller than those of non-time delay Specifications: fuses. Considerable cost saving occurs by permitting the use of smaller size switches, Ratings panels and fuses themselves Volts 600Vac, 300Vdc Provides a good degree of short-circuit Amps 65-600A protection (greater current-limitation) to help protect downstream components from high Interrupting rating fault currents 200 kA Vac RMS Sym Gives motor running back-up protection to 20 kA Vdc motors without extra cost Agency information Helps protect motors against burnout from overloads and single-phasing when sized UL Listed, Std. 248-12, Class RK5, Guide properly JDDZ, File E4273 Simplifies and improves blackout prevention CSA Certified, C22.2 No. 248.12, Class (selective coordination ratios) 1422-02, File 53787 Dual-element fuses can be applied in CE circuits subject to temporary motor overloads and surge currents to provide both high-performance, short-circuit and Catalog numbers (amps) overload protection FRS-R-65 FRS-R-125 FRS-R-350 FRS-R-70 FRS-R-150 FRS-R-400 FRS-R-75 FRS-R-175 FRS-R-450 Dimensions - in: FRS-R-80 FRS-R-200 FRS-R-500 A FRS-R-90 FRS-R-225 FRS-R-600 FRS-R-100 FRS-R-250 B FRS-R-110 FRS-R-300 Carton quantity Amp ratings A B Amp ratings Carton Qty. 65-100 7.88 1.11 65100 1 110-200 9.63 1.61 225-400 11.63 2.34 101200 1 201400 1 450-600 13.38 2.88 401600 1Technical Dat a 1018 Fusetron 600 V Class RK5 Effective May 2016 FRS-R 600 Vac/300 Vdc, 65-600 A, dual element, time-delay fuses Recommended fuse blocks Current-Limitation curves B 400000 Fuse amps 1-Pole 2-Pole 3-Pole 300000 70-100 RM60100-1CR RM60100-2CR RM60100-3CR 110-200 RM60200-1CR RM60200-2CR RM60200-3CR 200000 225-400 RM60400-1CR RM60400-2CR RM60400-3CR 450-600 RM60600-1CR RM60600-2CR RM60100-3CR 100000 For additional information on the RM600 volt fuse blocks, see data sheet 90000 80000 No. 10489. 70000 600A 60000 400A 50000 Fuse reducers for class R fuses 40000 200A Equipment Desired fuse Catalog numbers 30000 fuse clips (case) size (pairs) 600 V 100A 200 A 100 A NO.2621-R 20000 400 A 100 A NO.2641-R 200 A NO.642-R 10000 100 A NO.2661-R 9000 8000 7000 600 A 200 A NO.2662-R 6000 400 A NO.2664-R 5000 4000 Single reducer only (pair not required). 3000 For additional information on Class R fuse reducers, see data A sheet No. 1118. 2000 Time-current curves - average melt 1000 Amp rating Prospective short-circuit current - symmetrical RMS amps 300 100 Current-limiting effects Prosp. Let-through current S.C.C. (apparent RMS symmetrical vs. fuse rating) 100A 200A 400A 600A 5000 3000 4000 5000 5000 10,000 4000 5000 9000 10,000 15,000 4000 6000 10,000 14,000 10 20,000 5000 7000 11,000 15,000 25,000 5000 7000 12,000 17,000 30,000 5000 8000 13,000 18,000 35,000 5000 8000 13,000 18,000 40,000 6000 9000 14,000 19,000 50,000 6000 9000 14,000 20,000 1 60,000 6000 10,000 15,000 22,000 70,000 7000 11,000 17,000 23,000 80,000 7000 12,000 17,000 23,000 90,000 7000 12,000 17,000 24,000 100,000 8000 13,000 18,000 25,000 150,000 9000 14,000 21,000 27,000 0.1 200,000 9000 16,000 23,000 32,000 0.01 RM S symmetrical current in amps 2 Eaton.com/bussmannseries Time in seconds 20 15A 30A 100 60A 100A 200A 400A 1000 600A 10,000 20,000 Instantaneous peak let-through current in amps 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000 200000 Amp rating