Low-PeakTM 600V Class RK1 LPS-RK -- 600Vac/300Vdc, 110-60A, Dual Element, Time-Delay Fuses Dimensions - in 5.5" ( 0.31) 5" ( 0.31) 1/10 to 30A Description: Ultimate protection Class RK1 dual element, current-limiting, time-delay fuses available with optional open fuse indication on select ratings. Time-delay - 10 seconds (minimum) at 500% of rated current. Catalog Symbol: LPS-RK-(amp)SP (non-indicating) LPS-RK-(amp)SPI (indicating) Rating: Volts -- 600Vac, 300Vdc Amps -- 110-60A IR -- 300kA Vac RMS Sym. -- 100kA DC CE, UL Listed, Guide JDDZ, File E4273 CSA Certified, Class 1422-02, File 53787 Class RK1 per CSA C22.2, No. 248.12 Catalog Numbers (amps) - Non-indicating fuses LPS-RK-112SP LPS-RK-1610SP LPS-RK-1810SP LPS-RK-214SP LPS-RK-212SP LPS-RK-2810SP LPS-RK-3SP LPS-RK-3210SP LPS-RK-312SP LPS-RK-4SP LPS-RK-412SP LPS-RK-5SP LPS-RK-5610SP LPS-RK-6SP* LPS-RK-614SP* LPS-RK-7SP* LPS-RK-8SP* LPS-RK-9SP* LPS-RK-10SP* LPS-RK-12SP* LPS-RK-15SP* LPS-RK-1712SP* 35 to 60A Features: * Industry's only UL Listed and CSA Certified fuse with a 300kA Vac interrupting rating that exceeds requirements for virtually all applications * Current-limitation for maximum short-circuit protection * Easy selective coordination with all Low-Peak fuses using simple 2:1 ampacity ratio * "No damage" Type "2" protection for IEC and NEMA starters when properly sized * High inrush current motor protection * Time-delay permits 130% FLA sizing for back-up motor protection * Protection against single-phase motor damage * Low watt loss power consumption Applications: * Feeder and Branch Circuits * Motors * Transformers * Solenoids * General Purpose Circuits Agency Information: LPS-RK-110SP LPS-RK-210SP LPS-RK-310SP LPS-RK-410SP LPS-RK-12SP LPS-RK-610SP LPS-RK-810SP LPS-RK-1SP LPS-RK-118SP LPS-RK-114SP LPS-RK-1410SP 1.06" (0.008) 0.81" (0.008) Available with easyIDTM open fuse indication LPS-RK-20SP* LPS-RK-25SP* LPS-RK-30SP* LPS-RK-35SP* LPS-RK-40SP* LPS-RK-45SP* LPS-RK-50SP* LPS-RK-60SP* Recommended Fuse Blocks Fuse Amps 0-30 35-60 1-Pole R60030-1 R60060-1 2-Pole R60030-2 R60060-2 3-Pole R60030-3 R60060-3 For additional information on the R600 Series of 600 volt fuse blocks, see data sheet # 1111. Fuse Reducers For Class R Fuses Equipment Fuse Clips 60A Desired Fuse (Case) Size 30A 30A 60A 60A Catalog Numbers (Pairs) 600V NO.663-R NO.216-R NO.616-R NO.626-R * Open fuse indication available by inserting the suffix "I," e.g., LPS-RK-15SPI. Requires 75Vac minimum voltage. 100A Carton Quantity and Weight 200A Amp Rating 0-30 35-60 For additional information on Class R fuse reducers, see Data Sheet 1118. 0713 Carton Qty. 10 10 BU-SB13684 Page 1 of 3 Data Sheet # 1001 Low-PeakTM 600V Class RK1 LPS-RK -- 600Vac/300Vdc, 110-60A, Dual Element, Time-Delay Fuses Time-Current Characteristic Curves-Average Melt 6.25 2.5 1.25 .5 .2 .3 .4 .6 .8 1 1.6 2 3.2 4 5 8 10 300 .1 .15 1 to 10 Amps AMP RATING 100 TIME IN SECONDS 10 1 RMS SYMMETRICAL CURRENT IN AMPS 0713 BU-SB13684 Page 2 of 3 1000 100 10 0.1 0.01 1 0.1 Data Sheet # 1001 Low-PeakTM 600V Class RK1 LPS-RK -- 600Vac/300Vdc, 110-60A, Dual Element, Time-Delay Fuses Time-Current Characteristic Curves-Average Melt Current-Limitation Curves 12 to 60 Amps B 400,000 300,000 AMP RATING INSTANTANEOUS PEAK LET-THROUGH CURRENT IN AMPS 200,000 100,000 90,000 80,000 70,000 60,000 50,000 40,000 30,000 20,000 60A 10,000 9,000 8,000 7,000 6,000 30A 5,000 4,000 3,000 A 300,000 200,000 80,000 60,000 30,000 40,000 20,000 8,000 10,000 6,000 4,000 3,000 2,000 1,000 1,000 100,000 2,000 PROSPECTIVE SHORT-CIRCUIT CURRENT - SYMMETRICAL RMS AMPS Current-Limiting Effects Prosp. Let-Through Current S.C.C. (Apparent RMS Symmetrical Vs. Fuse Rating) 30A 60A 1000 1000 1000 2000 1000 1000 3000 1000 1000 5000 1000 2000 10,000 1000 2000 15,000 1000 2000 20,000 2000 3000 25,000 2000 3000 30,000 2000 3000 35,000 2000 3000 40,000 2000 3000 50,000 2000 3000 60,000 2000 4000 70,000 2000 4000 80,000 2000 4000 90,000 2000 4000 100,000 2000 4000 150,000 3000 5000 200,000 3000 5000 250,000 3000 6000 300,000 3000 6000 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-SB13684 Page 3 of 3 Data Sheet # 1001