Bussmann® LOW-PEAK® LPS-RK Dual-Element, Time-Delay Fuses Class RK1 –– 600 Vac/300 Vdc 70-600A NEW Dimensional Data DES A IGN B Dimensions (inches) Ampere Ratings 70-100 110-200 225-400 450-600 Catalog Symbol: LPS-RK_SP (600V) Ampere Rating: 70 to 600A Voltage Rating: ac: 600V (or less) dc: 300V (or less) Interrupting Rating: ac: 300,000A RMS Sym. dc: 100,000A Agency Information: UL Listed–Special Purpose**, Guide JFHR, File E56412 CSA Certified, (200,000 AIR) Class 1422-02, File 53787, Class RK1 per CSA C22.2 No. 248.12 Catalog Numbers LPS-RK-70SP LPS-RK-150SP LPS-RK-350SP LPS-RK-80SP LPS-RK-175SP LPS-RK-400SP LPS-RK-90SP LPS-RK-200SP LPS-RK-450SP LPS-RK-100SP LPS-RK-225SP LPS-RK-500SP LPS-RK-110SP LPS-RK-250SP LPS-RK-600SP LPS-RK-125SP LPS-RK-300SP — 7.88 9.63 11.63 13.38 “A” (± 0.062) (± 0.062) (± 0.094) (± 0.094) 1.11 1.61 2.36 2.88 “B” (± 0.020) (± 0.020) (± 0.020) (± 0.020) Features: • High degree of current-limitation for maximum short-circuit protection. • 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 overload protection, and single-phasing protection. • Low watt loss power consumption. • Electrically isolated end caps. • 300Vdc, UL Listed. Applications: • Branch distribution • Motors • Transformers • Solenoids • General purpose circuits Recommended fuseblocks for Class R 600V fuses See Data Sheet: 1111 Available with tin plate option. Add suffix “-TP”. (Ex.: LPS-RK-100SP-TP) Carton Quantity and Weight—LPS-RK (600Vac) Weight* Ampere Ratings Qty. Carton Lbs. Kg. 70–100 1 2.20 1.0 110–200 1 1.10 0.5 Equipment Fuse Clips 225–400 1 2.36 1.1 200A 450–600 1 3.44 1.5 Fuse Reducers For Class R Fuses 400A *Weight per carton. ** Meets all performance requirements of UL Standard 248-12 for Class RK1 fuses. 600A 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 636-527-1270 for more information. 10-2-02 SB02295 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 Data Sheet: 1118. Form No. LPS-RK 70-600 Page 1 of 3 Data Sheet: 1002 Bussmann® LOW-PEAK® Dual-Element, Time-Delay Fuses Class RK1 –– 600 Vac/300 Vdc LPS-RK 70-600A Time-Current Characteristic Average Melt 10-2-02 SB02295 Form No. LPS-RK 70-600 Page 2 of 3 Data Sheet: 1002 Bussmann® LOW-PEAK® LPS-RK Dual-Element, Time-Delay Fuses Class RK1 –– 600 Vac/300 Vdc 70-600A Current-Limitation Curves B AMPERE RATING INSTANTANEOUS PEAK LET-THROUGH CURRENT IN AMPS 400,000 100,000 600A 400A 200A 100A 10,000 A 300,000 200,000 100,000 10,000 1,000 1,000 RMS SYMMETRICAL CURRENTS IN AMPERES A-B=ASYMMETRICAL AVAILABLE PEAK (2.3 x SYMM RMS AMPS) Current-Limiting Effects Prosp. S.C.C. 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 50,000 60,000 80,000 100,000 150,000 200,000 250,000 300,000 100A 2,200 2,700 3,050 3,300 3,500 3,700 3,900 4,050 4,300 4,550 4,950 5,250 5,900 6,450 6,850 7,250 Let-Through Current (Apparent RMS Symmetrical) Versus Fuse Rating 200A 400A 600A 3,250 5,000 5,000 4,100 7,150 9,600 4,650 7,950 10,650 5,100 8,650 11,500 5,500 9,200 12,200 5,800 9,650 12,750 6,100 10,100 13,300 6,400 10,450 13,750 6,850 11,100 14,600 7,250 11,700 15,300 7,950 12,650 16,450 8,550 13,450 17,450 9,750 15,050 19,400 10,700 16,300 20,900 11,500 17,350 22,100 12,200 18,250 23,200 *Values derived from curve data. 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. 10-2-02 SB02295 Form No. LPS-RK 70-600 Page 3 of 3 Data Sheet: 1002