Bussmann® Fusetron FRS-R ® Dual-Element, Time-Delay Fuses Class RK5 – 600 Volt Dimensional Data 5" (± 0.31) .81" (± 0.008) ⁄Ω¡ºA to 30A 5.5" (± 0.31) 1.06" (± 0.008) 35A to 60A Catalog Symbol: FRS-R Dual-Element, Time-Delay – 10 second (minimum) at 500% rated current Current-Limiting Ampere Rating: ⁄Ω¡º to 60A Voltage Rating: 600Vac (or less) Interrupting Rating: 200,000A RMS Sym. dc Ratings (20,000AIC @ 250Vdc) Agency Information: 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 FRS-R-⁄Ω¡º FRS-R-1°Ω¡º FRS-R-8 FRS-R-⁄Ω• FRS-R-2 FRS-R-9 FRS-R-⁄fiΩ¡ºº FRS-R-2⁄Ω¢ FRS-R-10 FRS-R-¤Ω¡º FRS-R-2⁄Ω™ FRS-R-12 FRS-R-⁄Ω¢ FRS-R-2°Ω¡º FRS-R-15 FRS-R-‹Ω¡º FRS-R-3 FRS-R-17⁄Ω™ FRS-R-›Ω¡º FRS-R-3¤Ω¡º FRS-R-20 FRS-R-⁄Ω™ FRS-R-3⁄Ω™ FRS-R-25 FRS-R-flΩ¡º FRS-R-4 FRS-R-30 FRS-R-°Ω¡º FRS-R-4⁄Ω™ FRS-R-35 FRS-R-1 FRS-R-5 FRS-R-40 FRS-R-1⁄Ω• FRS-R-5flΩ¡º FRS-R-45 FRS-R-1⁄Ω¢ FRS-R-6 FRS-R-50 FRS-R-1›Ω¡º FRS-R-6⁄Ω¢ FRS-R-60 FRS-R-1⁄Ω™ FRS-R-7 — FRS-R-1flΩ¡º FRS-R-7⁄Ω™ — 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. • Permits the use of smaller and less costly switches. The timedelay 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 higher degree of short-circuit protection (greater current-limitation) in circuits in which surge currents or temporary overloads occur. • Helps protect motors against burnout from overloads. • Gives motor running back-up protection to motors without extra costs. • Helps protect motors against burnout from single phasing on three phase systems. • Simplifies and improves blackout prevention (selective coordination). • 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. • The overload element provides protection against low level overcurrent of overloads and will hold an overload which is five times greater than the ampere rating of the fuse for a minimum of ten seconds. Fuse Reducers For Class R Fuses Equipment Fuse Clips 60A 100A 200A Desired Fuse (Case) Size Catalog Number (Pairs) 600V 30A No. 663-R 30A No. 216-R 60A No. 616-R 60A No. 626-R Recommended fuseblocks for Class R 600V fuses See Data Sheet: 1111 Carton Quantity and Weight Ampere Ratings ⁄Ω¡º-60A Weight* Carton Qty. Lbs. Kg. ⁄Ω¡º–15 10 0.40 0.181 17.5–30 10 0.50 0.277 35-60 10 3.10 1.406 *Weight per carton. CE logo denotes compliance with European Union Low Voltage Directive (50-1000Vac, 75-1500Vdc). Refer to Data Sheet: 8002 or contact Bussmann Application Engineering at 314-527-1270 for more information. 7-25-03 A03014 Form No. FRS-R 1/10-60 Page 1 of 2 Data Sheet: 1017 Bussmann® Fusetron FRS-R ® Dual-Element, Time-Delay Fuses Class RK5 – 600 Volt ⁄Ω¡º-60A .1 .15 300 AMPERE RATING 60A 30A 300 AMPERE RATING 15A .2 .3 .4 .5 .6 .8 1 1.25 1.6 2 2.5 3.2 4 5 6.25 8 10 12 Time-Current Characteristic Curves–Average Melt 100 100 10 1 TIME IN SECONDS TIME IN SECONDS 10 .1 1 1,000 100 10 1 .1 .01 CURRENT IN AMPERES .1 60 30,000 10,000 20 .01 1,000 100,000 100 B 400,000 CURRENT IN AMPERES 30 10,000 15 200,000 1,000 1,000 100,000 A 10,000 INSTANTANEOUS PEAK LET-THROUGH CURRENT IN AMPERES AMPERE RATING Current-Limitation Curves PROSPECTIVE SHORT-CIRCUIT CURRENT SYMMETRICAL RMS AMPERES The only controlled copy of this Data Sheet 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. 7-25-03 A03014 Form No. FRS-R 1/10-60 Page 2 of 2 Data Sheet: 1017