UL/CSA Fuses General Purpose UL/CSA Fuses Current Limiting R-Rated Medium Voltage Fuses For Motor Circuits Medium Voltage Fuses Canadian Fuses & Holders Special Purpose Fuses Medium Voltage R-Rated Fuses for 2.4 and 4.8kV Motors Dimensions - in (mm) List of Ratings 2.4kV System Voltage Catalog Symbol 2.75 VFRHA 2R 2.75 VFRHA 3R 2.75 VFRHA 4R 2.75 VFRHA 6R 2.75 VKRHA 9R 2.75 VKRHA 12R 2.75 VKRHK 18R 2.75 VKRHK 24R 4.8kV System Voltage 5.5 VFNHA 2R 5.5 VFNHA 3R 5.5 VFNHA 4R 5.5 VFNHA 6R 5.5 VKNHA 9R 5.5 VKNHA 12R 5.5 VKNHK 18R 5.5 VKNHK 24R 5.5 VKNHK 30R 5.5 VKNHK 36R 5.5 VKNHK 40R 5.5 VKNHK 48R Current Rating Amps at 40C 70 100 130 170 200 230 390 450 70 100 130 170 200 230 390 450 450 500 600 650 Figure Number 3" 76.2mm 1 10.88" 276.0mm 0.63" max. 16.0mm 3" 76.2mm 0.63" max. 16.0mm 3" 76.2mm Figure 1 2 3" 76.2mm 10.88" 276.0mm 6.31" 160.0mm 3 Figure 2 4 3" 76.2mm 15.88" 403.0mm 0.63" max. 16.0mm 3" 76.2mm 0.63" max. 16.0mm 3" 76.2mm Fuse Blocks, Holders & Misc. Figure 3 3" 76.2mm 15.88" 403.0mm 6.31" 160.0mm Application Section Figure 4 Notes: 1. Interrupting rating - 80,000 amps asymmetrical 60Hz. 2. These fuses are dimensionally interchangeable with corresponding RRated fuses produced by other leading North American manufacturers. 102 For additional information, visit www.edisonfuse.com Circuit Protection Time-Current Characteristics for 5.5kV and 2.75kV Fuses 18 24 3036 40 48 12 1 RMS SYMMETRICAL CURRENT IN AMPS 100,000 10,000 1,000 100,000 .01 10,000 .01 1,000 .1 Canadian Fuses & Holders .1 100 TIME IN SECONDS 10 1 100 "R" RATING Special Purpose Fuses TIME IN SECONDS 10 9 100 3 4 6 "R" RATING 2 18 24 30 3640 48 9 12 6 3 4 Minimum Melt UL/CSA Fuses General Purpose 100 2 Total Clear UL/CSA Fuses Current Limiting R-Rated Medium Voltage Fuses For Motor Circuits RMS SYMMETRICAL CURRENT IN AMPS Medium Voltage Fuses Fuse Blocks, Holders & Misc. Application Section For additional information, visit www.edisonfuse.com 103 100 PEAK CURRENT (kA) UL/CSA Fuses Current Limiting Peak Let-Through Current Curve (5.5kV and 2.75kV Fuses) 48 40 36 30 24 18 12 9 6 4 3 2 10 "R" RATING UL/CSA Fuses General Purpose R-Rated Medium Voltage Fuses For Motor Circuits 10 1 PROSPECTIVE CURRENT (SYM. RMS kA) Application for HV Motor Circuit Fuses Motor Efficiency ---------- 90% Run Up Time ------ 10 Secs. The following table is a general guide only based on a number of assumptions regarding the motor duty application which are listed below. Contact Edison Customer Satisfaction for specific application information. The application tables are based on the following assumptions: Motor Power Factor ----- 0.9 Starting Method -- Full Voltage Hp 75 100 125 150 200 250 300 350 400 500 600 700 800 900 1000 1100 1200 1400 1600 1800 1900 2000 2200 2400 2600 2800 3000 3500 4000 4500 Fuse Blocks, Holders & Misc. Application Section .1 .1 Medium Voltage Fuses Canadian Fuses & Holders Special Purpose Fuses 1 FLA Amps 17 22 28 33 44 55 67 78 89 111 133 155 177 200 222 244 266 311 355 399 422 444 488 - - - - - - - 2.4kV FUSE "R" 2R 2R 3R 3R 4R 6R 6R 9R 9R 12R 18R 18R 18R 18R 24 24R 24R 30R 36R 40R 40R 40R 48R - - - - - - - Amps 70 70 70 100 130 170 170 170 200 230 390 390 390 390 450 450 450 450 500 600 600 600 650 - - - - - - - FLA Amps - - 16 19 26 32 38 45 45 64 77 90 102 115 128 141 154 179 205 230 243 256 282 307 333 358 384 448 - - Starting Current ---------- 6 x FLA Min. Fuse Size---- 1.3 x FLA Starts/Hour ---------------- Max of 2/Hour 4.16kV FUSE "R" - - 2R 2R 3R 3R 4R 4R 4R 6R 9R 9R 9R 12R 18R 18R 18R 18R 18R 24R 24R 24R 30R 30R 36R 36R 36R 40R - - Amps - - 70 70 100 100 130 130 130 170 200 200 230 230 390 390 390 390 390 450 450 450 450 450 500 500 500 600 - - Contact Edison Customer Satisfaction for applications regarding other operating conditions. 104 For additional information, visit www.edisonfuse.com FLA Amps - - - 17 22 28 33 39 44 55 67 78 89 100 111 122 133 155 177 200 211 222 244 266 288 311 333 388 444 500 4.8kV FUSE "R" - - - 2R 2R 3R 3R 4R 4R 6R 6R 9R 9R 9R 12R 12R 18R 18R 18R 18R 18R 24R 24R 24R 30R 30R 36R 36R 40R 48R Amps - - - 70 70 100 100 130 130 170 170 200 200 200 230 230 390 390 390 390 390 450 450 450 450 450 500 500 600 650