Low Voltage, Branch Circuit Rated Fuses Low-Peak(R) dual-element, time-delay fuses LPN-RK_SP (250V) Class RK1 LPS-RK_SP (600V) Class RK1 Now Available With Optional Indication Specifications Description: Current-limiting, dual-element, time-delay fuse; 10 seconds (minimum) at 500% rated amps (8 seconds for 0-30A sizes). Now available with optional permanent indication on select ratings (see Catalog Numbers table). Dimensions: See page 11 for Class RK1 dimensions. Construction: Copper fuse element. Ratings: Volts LPN-RK: -- 250Vac (or less) -- 125Vdc (0-60A) -- 250Vdc (70-600A) LPS-RK: -- 600Vac (or less) -- 300Vdc Amps -- 110-600A IR -- 300,000A RMS Sym. -- 100,000A dc Agency Information: CE, UL Listed - Special Purpose*, Guide JFHR, File E56412, CSA Certified (200,000 AIR), Class RK1 per CSA C22.2, No. 248.12, Class 1422-02, File 53787. Features and Benefits * Separate overload and short-circuit elements provide time delay for close sizing of high inrush loads linked with K1 current-limitation and selective coordination ratio of 2:1 (within Low-Peak fuse family) prevents widespread blackouts. * Inventory consolidation of Class RK1, RK5 and H fuses for reduced SKU investment and minimizing potential for misapplying fuse. * 300,000A RMS symmetrical interrupting rating provides adequate ratings without obsolescence for all electrical systems, big or small. * Insulated end caps reduces exposure to live parts and extends air gap to distance between blades of adjacent mounted fuses or to housing. Data Sheets: LPN-RK -- 1003 (0-60) and 1004 (70-600) LPN-RK with indication -- 1066 (70-600) LPS-RK -- 1001 (0-60) and 1002 (70-600) LPS-RK with indication -- 1061 (0-60) and 1064 (70-600) 16 Typical Applications * Large Distribution Switchboards * Power Panelboards * Motor Control Centers * Machinery Disconnect Switches LPN Catalog Numbers (Amps) (250Vac/125Vdc) LPN-RK-110SP LPN-RK-15100SP LPN-RK-210SP LPN-RK-310SP LPN-RK-410SP LPN-RK-12SP LPN-RK-610SP LPN-RK-810SP LPN-RK-1SP LPN-RK-1 18SP LPN-RK-1 14SP LPN-RK-1 410SP LPN-RK-1 610SP LPN-RK-1 810SP LPN-RK-2SP LPN-RK-2 14SP LPN-RK-2 12SP LPN-RK-2 810SP LPN-RK-3SP LPN-RK-3 210SP LPN-RK-3 12SP LPN-RK-4SP LPN-RK-4 12SP LPN-RK-5SP LPN-RK-5 610SP LPN-RK-6SP LPN-RK-6 14SP LPN-RK-8SP LPN-RK-9SP LPN-RK-10SP LPN-RK-12SP LPN-RK-15SP LPN-RK-17 12SP LPN-RK-20SP LPN-RK-25SP LPN-RK-30SP LPN-RK-35SP** LPN-RK-40SP** LPN-RK-45SP** LPN-RK-50SP** LPN-RK-60SP** LPN-RK-70SP**** LPN-RK-80SP** LPN-RK-90SP** LPN-RK-100SP** LPN-RK-110SP** LPN-RK-125SP** LPN-RK-150SP** LPN-RK-175SP** LPN-RK-200SP** LPN-RK-225SP** LPN-RK-250SP** LPN-RK-300SP** LPN-RK-350SP** LPN-RK-400SP** LPN-RK-450SP** LPN-RK-500SP** LPN-RK-600SP** *Meets all performance requirements of UL Standard 248-12 for Class RK1 fuses. **Available with optional permanent indication. To order, place "I" at end of Catalog Number. Example: LPN-RK-35SPI. 0-60A fuses available with Nickel plate option. (Ex: LPS-RK30SPNP) 70-600A fuses available with Tin plate option. Example: LPS-RK-100SP-TP. LPS Catalog Numbers - (Amps) (600Vac/300Vdc) 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-1 18SP LPS-RK-1 14SP LPS-RK-1 410SP LPS-RK-1 12SP LPS-RK-1 610SP LPS-RK-1 810SP LPS-RK-2 14SP LPS-RK-2 12SP LPS-RK-2 810SP LPS-RK-3SP LPS-RK-3 210SP LPS-RK-3 12SP LPS-RK-4SP LPS-RK-4 12SP LPS-RK-5SP LPS-RK-5 610SP LPS-RK-6SP** LPS-RK-6 14SP** LPS-RK-7SP** LPS-RK-8SP** LPS-RK-9SP** LPS-RK-10SP** LPS-RK-12SP** LPS-RK-15SP** LPS-RK-17 12SP** LPS-RK-20SP** LPS-RK-25SP** LPS-RK-30SP** LPS-RK-35SP** LPS-RK-40SP** LPS-RK-45SP** LPS-RK-50SP** LPS-RK-60SP** LPS-RK-70SP** LPS-RK-80SP** LPS-RK-90SP** LPS-RK-100SP** LPS-RK-110SP** LPS-RK-125SP** LPS-RK-150SP** LPS-RK-175SP** LPS-RK-200SP** LPS-RK-225SP** LPS-RK-250SP** LPS-RK-300SP** LPS-RK-350SP** LPS-RK-400SP** LPS-RK-450SP** LPS-RK-500SP** LPS-RK-600SP** *Meets all performance requirements of UL Standard 248-12 for Class RK1 fuses. **Available with optional permanent replace fuse indication. To order, place "I" at end of Catalog Number. Example: LPS-RK-15SPI. Recommended Fuse Holders & Blocks For Class RK1 600V & 250VFuses * See page 9 For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp 16 Low Voltage, Branch Circuit Rated Fuses Low-Peak(R) dual-element, time-delay fuses 61/4 21/2 32/10 11/4 4 5 8 10 12 2 1 300 16/10 400 600 1/2 200 8/10 100 6/10 15/100 60 3/10 4/10 AMPERE RATING 15 20 30 1/10 300 2/10 LPN-RK 250V Low Voltage Branch Circuit Fuses Time-Current Characteristic Curves--Average Melt LPN-RK 250V AMPERE RATING 100 100 10 TIME IN SECONDS 1 1 CURRENT IN AMPERES LPS-RK 600V 1,000 10 1 61/4 10 2 11/4 15/100 1/10 300 1 16/10 21/2 4 5 8 12 400 600 8/10 200 1/2 6/10 100 32/10 AMPERE RATING 60 4/10 30 RMS SYMMETRICAL CURRENT IN AMPERES 2/10 20 10,000 1,000 100 20 .1 .01 .01 100 .1 .1 3/10 TIME IN SECONDS 10 LPS-RK 600V AMPERE RATING 100 TIME IN SECONDS TIME IN SECONDS 10 1 .1 CURRENT IN AMPERES CURRENT IN AMPERES 10,000 1,000 100 20 .01 Data Sheets: LPN-RK -- 1003 (0-60) and 1004 (70-600) Data Sheets: LPS-RK -- 1001 (0-60) and 1002 (70-600) 17 Recommended Fuse Holders & Blocks For Class RK1 600V & 250VFuses * See page 9 For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp 17 Low Voltage, Branch Circuit Rated Fuses Low-Peak(R) dual-element, time-delay fuses B AMPERE RATING 400,000 100,000 600 400 200 100 60 10,000 30 200,000 100,000 1,000 10,000 A 1,000 INSTANTANEOUS PEAK LET-THRU CURRENT IN AMPS Current Limitation Curves--LPN-RK (250V) RMS SYMMETRICAL CURRENTS IN AMPERES A-B=ASYMMETRICAL AVAILABLE PEAK (2.3 X SYMM RMS AMPS) Current Limitation Curves--LPS-RK (600V) INSTANTANEOUS PEAK LET-THRU CURRENT IN AMPS B Did You Know? Manhattan's Biggest Building Project Protected by Cooper Bussmann(R) Low-Peak(R) Fuses New York City's landmark AOL Time Warner Center is protected by a vast array of Cooper Bussmann products. The $1.7 billion, twin-towered, glass-walled complex rises 750 feet and measures 2.8 million square feet. The electrical circuit protection system has 25 switchboards (1200A 4000A) all containing fusible switches, 500 panelboards (100A - 1600A), 75 plug-in busway switches (100A - 600A), and more than 1900 Cooper Bussmann Class J Low-Peak(R) fuses. Cooper Bussmann LPJ fuses were used because of the superior series-ratings available using Class J fuses with downstream circuit breaker panels. Fuses were selected by the consulting engineer for all switchboards, power panels and busway switches because of the high available short circuit currents and the need for selective coordination of overcurrent protective devices (a requirement of the New York City Electrical Code) so the electrical system does not have a "blackouts." Data Sheets: LPN-RK -- 1003 (0-60) and 1004 (70-600) Data Sheets: LPS-RK -- 1001 (0-60) and 1002 (70-600) Recommended Fuse Holders & Blocks For Class RK1 600V & 250VFuses * See page 9 18 For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp