FUSETRON™ 600V Class RK5 FRS-R — 600Vac/300Vdc, 65-600A, Dual Element, Time-Delay Fuses Dimensions - in A B Description: Advanced protection, energy efficient Class RK5 dual element, current-limiting, time-delay fuses. Time-delay – 10 seconds (minimum) at 500% of rated current. Catalog Symbol: FRS-R-(amp) Ratings: Volts — 600Vac, 300Vdc Amps — 65-600A IR — 200kA Vac RMS Sym. — 20kA Vdc Agency Information: CE, UL Listed, Std. 248-12, Class RK5, Guide JDDZ, File E4273 CSA Certified, C22.2 No. 248.12, Class 1422-02, File 53787 Catalog Numbers (amps) FRS-R-65 FRS-R-70 FRS-R-75 FRS-R-80 FRS-R-90 FRS-R-100 FRS-R-110 FRS-R-125 FRS-R-150 FRS-R-175 FRS-R-200 FRS-R-225 FRS-R-250 FRS-R-300 Carton Quantity and Weight Amp Rating 65–100 101–200 201–400 401–600 Carton Qty. 1 1 1 1 FRS-R-350 FRS-R-400 FRS-R-450 FRS-R-500 FRS-R-600 Amp Ratings 65-100 110-200 225-400 450-600 A 7.88 (± 0.062) 9.63 (± 0.062) 11.63 (± 0.094) 13.38 (± 0.094) B 1.11 (± 0.02) 1.61 (± 0.02) 2.34 (± 0.02) 2.88 (± 0.02) Features: • Provides motor overload, ground fault and short-circuit protection. When used in circuits subject to surge currents such as those caused by motors, transformers and other inductive components, these fuses can be sized close to full-load amps to give maximum overcurrent protection. • The time-delay feature makes it possible to use fuse amp ratings which are much smaller than those of non-time delay fuses. Considerable cost saving occurs by permitting the use of smaller size switches, panels and fuses themselves. • Provides a good degree of short-circuit protection (greater current-limitation) to help protect downstream components from high fault currents. • Gives motor running back-up protection to motors without extra cost. • Helps protect motors against burnout from overloads and single-phasing when sized properly. • Simplifies and improves blackout prevention (selective coordination ratios). • Dual-element fuses can be applied in circuits subject to temporary motor overloads and surge currents to provide both high-performance, short-circuit and overload protection. Recommended Fuse Blocks Fuse Amps 70-100 110-200 225-400 450-600 1-Pole RM60100-1CR RM60200-1CR RM60400-1CR RM60600-1CR 2-Pole RM60100-2CR RM60200-2CR RM60400-2CR RM60600-2CR 3-Pole RM60100-3CR RM60200-3CR RM60400-3CR RM60100-3CR For additional information on the RM Series of 600 volt fuse blocks, see product brochure # 3192. Fuse Reducers For Class R Fuses Equipment Fuse Clips 200A 400A 600A Desired Fuse (Case) Size 100A 100A 200A 100A 200A 400A Catalog Numbers (Pairs) 600V NO.2621-R NO.2641-R NO.642-R NO.2661-R NO.2662-R NO.2664-R† † Single reducer only (pair not required). For additional information on Class R fuse reducers, see Data Sheet # 1118. 0713 BU-SB13729 Page 1 of 3 Data Sheet # 1018 FUSETRON™ 600V Class RK5 FRS-R — 600Vac/300Vdc, 65-600A, Dual Element, Time-Delay Fuses 600A 400A 200A 100A 60A 30A 300 15A Time-Current Curves - Average Melt AMP RATING 100 TIME IN SECONDS 10 1 0.1 RMS SYMMETRICAL CURRENT IN AMPS 0713 BU-SB13729 Page 2 of 3 20,000 10,000 1,000 100 20 0.01 Data Sheet # 1018 FUSETRON™ 600V Class RK5 FRS-R — 600Vac/300Vdc, 65-600A, Dual Element, Time-Delay Fuses Current-Limitation Curves B 400000 300000 AMP RATING INSTANTANEOUS PEAK LET-THROUGH CURRENT IN AMPS 200000 100000 90000 80000 70000 60000 600A 400A 50000 40000 200A 30000 100A 20000 10000 9000 8000 7000 6000 5000 4000 3000 A 2000 200000 50000 60000 70000 80000 90000 100000 40000 30000 20000 5000 6000 7000 8000 9000 10000 3000 4000 2000 1000 1000 PROSPECTIVE SHORT-CIRCUIT CURRENT - SYMMETRICAL RMS AMPS 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 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 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 27,000 200,000 9000 16,000 23,000 32,000 The only controlled copy of this Data Sheet is the electronic read-only version located on the Cooper Bussmann Network Drive. All other copies of this document are by definition uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. Cooper Bussmann reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Cooper Bussmann also reserves the right to change or update, without notice, any technical information contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications. 0713 BU-SB13729 Page 3 of 3 Data Sheet # 1018