Bussmann® Fusetron® FRN-R Dual-Element, Time-Delay Fuses Class RK5 – 250 Volt ⁄Ω¡º-60A Dimensional Data 2" (± 0.31) .56" (± 0.008) 1/10 A to 30A 3" (± 0.31) .81" (± 0.008) 35A to 60A Catalog Symbol: FRN-R Current-Limiting Dual-Element, Time-Delay – 10 seconds (minimum) at 500% rated current Ampere Rating: ⁄Ω¡º to 60 Amperes Voltage Rating: 250 Volts AC (or less) Interrupting Rating: 200,000A RMS Sym. DC Ratings: 20,000 AIC @ 125 VDC Agency Approvals: UL Listed, Std. 248-12, Class RK-5, Guide JDDZ, File E4273 CSA Certified, C22.2 No. 248.12, Class 1422-01, File 53787 Catalog Numbers FRN-R-8 General Information: • Provides motor overload, ground fault and short-circuit protection. • Helps protect motors against burnout from overloads. • 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. FRN-R-⁄Ω¡º FRN-R-1°Ω¡º FRN-R-⁄Ω• FRN-R-2 FRN-R-9 FRN-R-⁄fiΩ¡ºº FRN-R-2⁄Ω¢ FRN-R-10 FRN-R-¤Ω¡º FRN-R-2⁄Ω™ FRN-R-12 FRN-R-⁄Ω¢ FRN-R-2°Ω¡º FRN-R-15 FRN-R-‹Ω¡º FRN-R-3 FRN-R-17⁄Ω™ Fuse Reducers For Class R Fuses FRN-R-›Ω¡º FRN-R-3 ¤Ω¡º FRN-R-20 FRN-R-⁄Ω™ FRN-R-3⁄Ω™ FRN-R-25 Equipment Fuse Clips FRN-R-flΩ¡º FRN-R-4 FRN-R-30 60A FRN-R-°Ω¡º FRN-R-4⁄Ω™ FRN-R-35 FRN-R-1 FRN-R-5 FRN-R-40 FRN-R-1⁄Ω• FRN-R-5 flΩ¡º FRN-R-45 FRN-R-1⁄Ω¢ FRN-R-6 FRN-R-50 FRN-R-1›Ω¡º FRN-R-6⁄Ω¢ FRN-R-60 FRN-R-1⁄Ω™ FRN-R-7 — FRN-R-1flΩ¡º FRN-R-7⁄Ω™ — Desired Fuse (Case) Size 100A 200A 0–15 30A No. 263-R 30A No. 213-R 60A No. 216-R 60A No. 226-R Fuseblocks for Class R Fuses (Clip Retaining Spring Standard, Suffix “R”) Carton Quantity and Weight Ampere Ratings Catalog Number (Pairs) 250V Weight* Carton Qty. Lbs. Kg. 10 0.40 0.181 Amps ⁄Ω¡º Basic Catalog Poles Number 1 R25030-1 Terminal Screw w/ — Pres. Plate SR PR Type (Suffix No.) ⁄Ω¢∑ Box Lug w/ — Clip QuickCU only Connect CR COR QR 17.5–30 10 0.50 0.227 to 2 R25030-2 SR PR CR COR QR 35–60 10 1.00 0.453 30 3 R25030-3 SR PR CR COR QR 31 1 R25060-1 SR — CR COR — to 2 R25060-2 SR — CR COR — 60 3 R25060-3 SR — CR COR — *Weight per carton. 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. 9-7-99 SB99013 Rev. A Form No. FRN-R ⁄Ω¡º-60 Page 1 of 3 BIF Doc #1019 Bussmann® Fusetron® FRN-R Dual-Element, Time-Delay Fuses Class RK5 – 250 Volt ⁄Ω¡º-60A AMPERE RATING 100 AMPERE RATING 60A 30A 15A 8A 10A 2.5 4 6.25 .5 .6 1.25 .8 1 1.6 2 3.2 5 8 10 12 .3 .4 300 .1 .15 .2 Time-Current Characteristic Curves–Average Melt 300 100 10 1 TIME IN SECONDS TIME IN SECONDS 10 1 1,000 CURRENT IN AMPERES 100 1 .1 .01 10 .1 10,000 1,000 100 .01 10 .1 CURRENT IN AMPERES 9-7-99 SB99013 Rev. A Form No. FRN-R ⁄Ω¡º-60 Page 2 of 3 BIF Doc #1019 Bussmann® Fusetron® Dual-Element, Time-Delay Fuses Class RK5 – 250 Volt FRN-R ⁄Ω¡º-60A Current-Limitation Curve 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. 9-7-99 SB99013 Rev. A Form No. FRN-R ⁄Ω¡º-60 Page 3 of 3 BIF Doc #1019