Bussmann® Fusetron® FRS-R Dual-Element, Time-Delay Fuses Class RK5 –– 600 Volt 65-600A Dimensional Data A B Dimensions (inches) Ampere Ratings 65-100 110-200 225-400 450-600 Catalog Symbol: FRS-R Dual-Element, Time-Delay – 10 seconds (minimum) at 500% rated current Current-Limiting Ampere Rating: 65 to 600 Amperes † Voltage Rating: 600 Volts AC (or less) Interrupting Rating: 200,000A RMS Sym. DC Ratings (20,000AIC @ 300 Vdc) Agency Approvals: U.L. Listed, Std. 248-12, Class RK5, Guide JDDZ, File E4273 CSA Certified, C22.2 No. 248.12, Class 1422-01, File 53787 Catalog Numbers FRS-R-65 FRS-R-125 FRS-R-300 FRS-R-70 FRS-R-135 FRS-R-325 FRS-R-75 FRS-R-150 FRS-R-350 FRS-R-80 FRS-R-175 FRS-R-400 FRS-R-85 FRS-R-200 FRS-R-450 FRS-R-90 FRS-R-225 FRS-R-500 FRS-R-100 FRS-R-250 FRS-R-600 FRS-R-110 FRS-R-275 — Carton Quantity and Weight Weight* Ampere Ratings Carton Qty. Lbs. Kg. 65–100 1 0.54 0.245 101–200 1 1.22 0.544 201–400 1 3.00 1.359 401–600 1 5.00 2.268 A 7.88 (± 0.062) 9.63 (± 0.062) 11.63 (± 0.094) 13.38 (± 0.094) 1.11 1.61 2.34 2.88 B (± 0.020) (± 0.020) (± 0.020) (± 0.020) General Information: • 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 amperes to give maximum overcurrent protection. • The time-delay feature makes it possible to use fuse ampere 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 costs. • 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. *Weight per carton. Fuse Reducers For Class R Fuses Fuseblocks – Class R Catalog Numbers (Clip Retaining Spring Standard, Suffix “R”) Poles 1 Basic Catalog Number R60100-1 Terminal Type (Suffix No.) Box Lug w/ — Reinforced Clip CU only CR COR to 2 R60100-2 CR COR 100 3 R60100-3 CR COR to 200 1 R60200-1 CR — to 400 1 R60400-1 CR — to 600 1 R60600-1 CR — Amps 65 For additional information on the R600 Series fuseblocks, refer to BIF Document 1111. † To obtain information for 0-60 Amps, access BIF # 1017 11-1-00 A00115 Equipment Fuse Clips 200A 400A 600A Desired Fuse (Case) Size Catalog Number (Pairs) 600V 100A No. 2621-R 100A No. 2641-R 200A No. 642-R 100A No. 2661-R 200A No. 2662-R 400A No. 2664-R* *Single reducer only (pair not required). For additional information, see BIF Document 1118. CE logo denotes compliance with European Union Low Voltage Directive (50-1000 Vac, 75-1500 Vdc). Refer to BIF document #8002 or contact Bussmann Application Engineering at 636-527-1270 for more information. Form No. FRS-R 70-600 Page 1 of 3 BIF Doc #1018 Bussmann® Fusetron® FRS-R Dual-Element, Time-Delay Fuses Class RK5 –– 600 Volt AMPERE RATING 600 400 200 300 100 10 TIME IN SECONDS For information on previous design FRS-R, 70-600, see BIF Document 1153. 600A 5,000 10,000 13,700 15,000 16,100 17,050 17,900 18,700 20,050 21,250 23,300 25,000 28,450 31,200 100 Time-Current Characteristic Curves–Average Melt Current-Limiting Effects FRS-R Apparent RMS Symmetrical Let-Through Current Prospective SCC 30A 60A 100A 200A 400A 5,000 1,400 2,000 2,900 3,950 5,000 10,000 1,850 2,650 3,600 5,100 8,550 15,000 2,200 3,200 4,100 5,950 9,750 20,000 2,450 3,550 4,500 6,600 10,700 25,000 2,700 3,900 4,850 7,150 11,500 30,000 2,900 4,280 5,150 7,650 12,200 35,000 3,100 4,400 5,400 8,100 12,800 40,000 3,300 4,760 5,600 8,500 13,400 50,000 3,550 5,150 6,050 9,250 14,400 60,000 3,800 5,500 6,400 9,850 15,250 80,000 4,300 6,100 7,000 10,950 16,750 100,000 4,500 6,600 7,550 11,900 18,000 150,000 5,200 8,000 8,600 13,800 20,550 200,000 5,800 8,500 9,400 15,350 22,550 65-600A 1 .1 40,000 10,000 1,000 100 .01 RMS SYMMETRICAL CURRENT INCURRENT AMPERES IN AMPERES 11-1-00 A00115 Form No. FRS-R 70-600 Page 2 of 3 BIF Doc #1018 Bussmann® Fusetron® FRS-R Dual-Element, Time-Delay Fuses Class RK5 –– 600 Volt 65-600A Current-Limitation Curves INSTANTANEOUS PEAK LET-THROUGH CURRENT IN AMPS B 400,000 AMPERE RATING 100,000 600A 400A 200A 100A 10,000 A 200,000 100,000 10,000 1,000 1,000 PROSPECTIVE SHORT-CIRCUIT CURRENT SYMMETRICAL RMS AMPERES The only controlled copy of this BIF document is the electronic read-only version located on the 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. Bussmann reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. 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. 11-1-00 A00115 Form No. FRS-R 70-600 Page 3 of 3 BIF Doc #1018