Medium Voltage Fuses Medium Voltage Fuses 2,400 - 38,000 VAC * Current-Limiting Current-limiting "E" and "R" rated fuses are equipped with a mechanical indicator or striker pin that protrudes through the fuse cap upon operation of the fuse. This provides visual identification of a blown fuse and can be used as a trigger for external devices. Note: Extension distance 1/2" min; extension force 2lb. min General Information Medium Voltage Fuses The terms "Medium Voltage" and "High Voltage" have been used interchangeably by many people to describe fuses operating above 600 volts. Technically speaking, "medium voltage" fuses are those intended for the voltage range from 2,400 to 38,000 VAC. "High voltage" fuses are for circuits carrying voltages greater than 38,000 VAC. "E" rated fuses are considered to be general purpose fuses and can be used to protect against low and high values of fault current. "R" rated fuses are designed for back-up protection. They must be used in series with other devices such as motor overload relays in order to achieve both overload and short-circuit protection. Medium voltage fuses are not intended to provide overload protection in the same sense as fuses rated 600 volts or less. Medium voltage fuse current ratings do not have the same meanings as the ampere ratings of low voltage fuses. Littelfuse now offers a complete selection of "E" and "R" rated medium voltage fuses for the protection of transformers, potential transformers, feeders, and motor circuits. Single, double, and triple barrel designs are available to cover a wide range of current, voltage, and interrupting ratings. Conventional ferrule type, clip lock, and bolt-in mounting configurations are now available for virtually any application. Hermetically sealed fuses for use in hazardous environments are also offered. All medium voltage fuses are limited in their ability to interrupt low value overcurrents, especially those between 100% and 200% of the fuse's continuous current rating. They are designed to carry their rated current without exceeding the temperature rise permitted by NEMA and ANSI standards. Additional application data can be found in the Fuse Application section of this catalog. Contact the factory or your local Littelfuse representative for additional fuse ratings or custom mounting configurations. 24 Hour Emergency Service is available. Call 847 824 1188. Applications Power Transformer Protection Potential Transformer Protection Motor Controller Back-up Protection Fused Switches Feeder Circuits Bolt-in Mount Fuses 64 www.littelfuse.com (c) 2005 Littelfuse * POWR-GARDTM Products Catalog Medium Voltage Fuses R Rated Medium Voltage Fuses Current-Limiting Features Characteristics "R" rated fuses provide required short-circuit protection for medium voltage motors, motor controllers and associated circuitry. These components have limited ability to absorb the energy of large shortcircuit currents. Medium voltage motor controllers contain overload relays which provide both overload protection and locked rotor protection to the motor. The controllers are also intended to interrupt low value short-circuits within the capability of the motor controller. This protects the medium voltage fuse from sustained overcurrents which are less than their minimum interrupting rating. Voltage Rating: Current Range: 2,400 volts - 8,250 volts 2R - 36R Options *Hermitically sealed for use in hazardous locations (add "S" suffix to part number) * Bolt-in mounting configurations NEMA Standards for "R" rated medium voltage power fuses require they operate within 15-35 seconds when subjected to an rms current 100 times the "R" rating. For example, a fuse with a 2R rating will open within 15 to 35 seconds on an applied current of 2 x 100 = 200 amperes. Hookeye Feature* 130-4R-1C-5.5 Medium Voltage Fuses *For hookeye attachment; add "W" suffix to part number Part Number System Max Voltage (KV) Style (C-Cartridge) No. of Barrels Rating (size) Continuous Current 6.38" 3"DIA Dim.A Clip Center Dim.B D DD Figure1 R 2.75 KV Rated 9.75" Catalog Number Old Catalog Number Size 70-2R-1C-2.75 100-3R-1C-2.75 130-4R-1C-2.75 150-5R-1C-2.75 170-6R-1C-2.75 200-9R-1C-2.75 230-12R-1C-2.75 390-18R-2C-2.75 450-24R-2C-2.75 LCK 2R LCK 3R LCK 4R LCK 5R LCK 6R LCK 9R LCK 12R LCK 18R LCK 24R 2R 3R 4R 5R 6R 9R 12R 18R 24R DDD Figure2 Figure3 Maximum Dim. A Continuous Current A (inches) @ 40 deg C. 70 100 130 150 170 200 230 390 450 7" 7" 7" 7" 7" 7" 7" 7" 7" Dim. B Min. Interrupting Max Interrupting Figure (inches) Rating RMS Amps Rating RMS Asym Number 10.875" 10.875" 10.875" 10.875" 10.875" 10.875" 10.875" 10.875" 10.875" 170 250 340 390 500 760 1000 1500 1950 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 1 1 1 1 1 1 1 2 2 Add "w" suffix to part number for hookeye attachment. (c) 2005 Littelfuse * POWR-GARDTM Products Catalog www.littelfuse.com 65 Medium Voltage Fuses R Rated Medium Voltage Fuses Current-Limiting 3"DIA Dim.A (Clip Center) 5.5 KV 14"Clip Centers 5.5 KV Medium Voltage Fuses Rated R 8.25 KV Rated Catalog Number 70-2R-1C-5.5 100-3R-1C-5.5 130-4R-1C-5.5 150-5R-1C-5.5 170-6R-1C-5.5 200-9R-1C-5.5 230-12R-1C-5.5 390-18R-2C-5.5 450-24R-2C-5.5 480-26R-2C-5.5 550-30R-2C-5.5 600-32R-2C-5.5 650-36R-2C-5.5 550-30R-3C-5.5 600-32R-3C-5.5 650-36R-3C-5.5 70-2R-1C-5.5X 100-3R-1C-5.5X 130-4R-1C-5.5X 150-5R-1C-5.5X 170-6R-1C-5.5X 200-9R-1C-5.5X 230-12R-1C-5.5X 390-18R-2C-5.5X 450-24R-2C-5.5X 550-30R-2C-5.5X Catalog Number 70-2R-1C-8.25 100-3R-1C-8.25 130-4R-1C-8.25 150-5R-1C-8.25 170-6R-1C-8.25 200-9R-1C-8.25 230-12R-1C-8.25 390-18R-2C-8.25 450-24R-2C-8.25 Old Catalog Number LCL 2R LCL 3R LCL 4R LCL 5R LCL 6R LCL 9R LCL 12R LCL 18R LCL 24R -- -- -- -- -- -- LCL 36R -- -- -- -- -- -- -- -- -- -- Old Catalog Number -- -- -- -- -- -- -- -- -- 9.75" DD Figure5 DDD Figure6 Dim.B D Figure4 R 6.38" Size 2R 3R 4R 5R 6R 9R 12R 18R 24R 26R 30R 32R 36R 30R 32R 36R 2R 3R 4R 5R 6R 9R 12R 18R 24R 30R Size 2R 3R 4R 5R 6R 9R 12R 18R 24R Maximum Dim. A Continuous Current (inches) @ 40 Degrees C AA 70 12" 100 12" 130 12" 150 12" 170 12" 200 12" 230 12" 390 12" 450 12" 480 12" 550 12" 600 12" 650 12" 550 12" 600 12" 650 12" 70 100 130 150 170 200 230 390 450 550 Maximum Continuous Current @ 40 Degrees C 70 100 130 150 170 200 230 390 450 Dim. B (inches) Min. Interrupting Max Interrupting Figure Rating RMS Amps Rating RMS (Asym) Number 15.875" 15.875" 15.875" 15.875" 15.875" 15.875" 15.875" 15.875" 15.875" 15.875" 15.875" 15.875" 15.875" 15.875" 15.875" 15.875" 170 250 340 390 500 760 1000 1500 1950 2100 2400 2600 2900 2400 2600 2900 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 4 4 4 4 4 4 4 5 5 5 5 5 5 6 6 6 14" 14" 14" 14" 14" 14" 14" 14" 14" 14" 17.875" 17.875" 17.875" 17.875" 17.875" 17.875" 17.875" 17.875" 17.875" 17.875" 170 250 340 390 500 760 1000 1500 1950 2400 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 4 4 4 4 4 4 4 5 5 5 Dim. A (inches) Dim. B (inches) 12" 12" 12" 12" 12" 12" 12" 12" 12" 15.875" 15.875" 15.875" 15.875" 15.875" 15.875" 15.875" 15.875" 15.875" Min. Interrupting Max Interrupting Figure Rating RMS Amps Rating RMS (Asym) Number 190 225 330 440 500 740 955 1440 1910 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 4 4 4 4 4 4 4 5 5 Add "w" suffix to part number for hookeye attachment. 66 www.littelfuse.com (c) 2005 Littelfuse * POWR-GARDTM Products Catalog Medium Voltage Fuses R Rated Medium Voltage Fuses Current-Limiting Littelfuse POWR-GARDTM medium voltage fuses are available in several bolt-in mounting configurations. Contact factory for custom configurations. "B" "BI" "IB" Bolt mount Bolt-In mount Inverted-Bolt mount Refer to illustrations for mounting dimensions. Indicator Indicator Dim.B Medium Voltage Fuses Indicator (2) .34" X .660 Slots 1.38" Apart 3" Dia. Indicator 3" Dia. Dim.B Dim.B (2) .34" Holes 1.38" Apart Dim.A Dim.A Figure7 Figure8 Figure9 Bolt Mount "B" R Old Catalog Number 70-2R-1IB-2.75 100-3R-1IB-2.75 130-4R-1IB-2.75 150-5R-1IB-2.75 170-6R-1IB-2.75 200-9R-1IB-2.75 230-12R-1IB-2.75 390-18R-2IB-2.75 450-24R-2IB-2.75 -- 2.75 KV 2.75 KV 70-2R-1B-2.75 00-3R-1B-2.75 30-4R-1B-2.75 150-5R-1B-2.75 170-6R-1B-2.75 200-9R-1B-2.75 230-12R-1B-2.75 390-18R-2B-2.75 450-24R-2B-2.75 -- Bolt Mount "B" Number Inverted Bolt "IB" Rated Catalog -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- (c) 2005 Littelfuse * POWR-GARDTM Products Catalog Figure10 Inverted-Bolt "IB" Size Maximum Dim. A Continuous Current (inches) @ Degrees C Dim. B Min. Interrupting Max Interrupting Figure (inches) Rating RMS Amps Rating RMS (Asym) Number 2R 3R 4R 5R 6R 9R 12R 18R 24R 70 100 130 150 170 200 230 390 450 4.6" 4.6" 4.6" 4.6" 4.6" 4.6" 4.6" 7.4" 7.4" 13" 13" 13" 13" 13" 13" 13" 13" 13" 170 250 240 390 500 760 1000 1500 1950 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 7 7 7 7 7 7 7 8 8 2R 3R 4R 5R 6R 9R 12R 18R 24R 70 100 130 150 170 200 230 390 450 -- -- -- -- -- -- -- -- -- 13" 13" 13" 13" 13" 13" 13" 13" 13" 170 250 340 390 500 760 1000 1500 1950 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 9 9 9 9 9 9 9 10 10 www.littelfuse.com 67 Medium Voltage Fuses R Rated Medium Voltage Fuses Current-Limiting .44" X .91" Slots (1.53" c.t.c.) 3"Dia. Indicator Indicator Front View Dim.A Size Bolt In Mount "BI" 70-2R-1BI-5.5 100-3R-1BI-5.5 130-4R-1BI-5.5 150-5R-1BI-5.5 170-6R-1BI-5.5 200-9R-1BI-5.5 230-12R-1BI-5.5 390-18R-2BI-5.5 450-24R-2BI-5.5 480-26R-2BI-5.5 550-30R-2BI-5.5 600-32R-2BI-5.5 650-36R-2BI-5.5 550-30R-3BI-5.5 600-32R-3BI-5.5 650-36R-3BI-5.5 700-38R-3BI-5.5 Old Catalog Number -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 2R 3R 4R 5R 6R 9R 12R 18R 24R 26R 30R 32R 36R 30R 32R 36R 38R Bolt Mount "B" 70-2R-1B-5.5 100-3R-1B-5.5 130-4R-1B-5.5 150-5R-1B-5.5 170-6R-1B-5.5 200-9R-1B-5.5 230-12R-1B-5.5 390-18R-2B-5.5 450-24R-2B-5.5 550-30R-2B-5.5 600-32R-2B-5.5 650-36R-2B-5.5 -- -- -- -- -- -- -- -- -- -- -- -- Inverted Bolt "IB" 70-2R-1IB-5.5 100-3R-1IB-5.5 130-4R-1IB-5.5 150-5R-1IB-5.5 170-6R-1IB-5.5 200-9R-1IB-5.5 230-12R-1IB-5.5 390-18R-2IB-5.5 450-24R-2IB-5.5 550-30R-2IB-5.5 600-32R-2IB-5.5 650-36R-2IB-5.5 Bolt-In Mount "BI" Figure 11 70-2R-1BI-8.25 100-3R-1BI-8.25 130-4R-1BI-8.25 150-5R-1BI-8.25 170-6R-1BI-8.25 200-9R-1BI-8.25 230-12R-1BI-8.25 390-18R-2BI-8.25 450-24R-2BI-8.25 R 8.25 KV 5.5 KV 5.5 KV 5.5 KV Medium Voltage Fuses Rated 68 Catalog Number Dim.B Dim.B Bolt-In Mount "BI" Dim.A Dim.A Figure 12 Maximum Dim. A Continuous Current (inches) @ 40 C. Figure 13 Dim. B Min. Interrupting Max Interrupting Figure (inches) Rating RMS Amps Rating RMS (Asym) Number 70 100 130 150 170 200 230 390 450 480 550 600 650 550 600 650 700 3.6" 3.6" 3.6" 3.6" 3.6" 3.6" 3.6" 7.6" 7.6" 7.6" 7.6" 7.6" 7.6" -- -- -- -- 18" 18" 18" 18" 18" 18" 18" 18" 18" 18" 18" 18" 18" 18" 18" 18" 18" 170 250 340 390 500 760 1000 1500 1950 2200 2400 2650 2900 -- -- -- -- 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 11 11 11 11 11 11 11 12 12 12 12 12 12 13 13 13 13 2R 3R 4R 5R 6R 9R 12R 18R 24R 30R 32R 36R 70 100 130 150 170 200 230 390 450 550 600 650 4.6" 4.6" 4.6" 4.6" 4.6" 4.6" 4.6" 7.4" 7.4" 8.4" 8.4" 8.4" 18" 18" 18" 18" 18" 18" 18" 18" 18" 18" 18" 18" 170 250 340 390 500 760 1000 1500 1950 2400 2650 2900 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 7 7 7 7 7 7 7 8 8 8 8 8 -- -- -- -- -- -- -- -- -- -- -- -- 2R 3R 4R 5R 6R 9R 12R 18R 24R 30R 32R 36R 70 100 130 150 170 200 230 390 450 550 600 650 -- -- -- -- -- -- -- -- -- -- -- -- 18" 18" 18" 18" 18" 18" 18" 18" 18" 18" 18" 18" 170 250 340 390 500 760 1000 1500 1950 2400 2650 2900 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 9 9 9 9 9 9 9 10 10 10 10 10 -- -- -- -- -- -- -- -- -- 2R 3R 4R 5R 6R 9R 12R 18R 24R 70 100 130 150 170 200 230 390 450 3.6" 3.6" 3.6" 3.6" 3.6" 3.6" 3.6" 7.6" 7.6" 18" 18" 18" 18" 18" 18" 18" 18" 18" 190 225 330 400 500 740 955 1440 1910 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 11 11 11 11 11 11 11 12 12 www.littelfuse.com (c) 2005 Littelfuse * POWR-GARDTM Products Catalog Medium Voltage Fuses Live Parts Live parts are available for mounting "E", "R", and "PT" single, double, and triple barrel fuses. Mounting clips are available for ferrule type and clip lock style fuses. All clips are sold in pairs. Contact factory for additional live parts. Part Number: 700-156* Part Number: 700-300* For use with 1- 9/16" to 1- 5/8" (1.625") diameter PT fuses. For use with 3" diameter fuses. System Number: 0700156.Z System Number: 0700300.Z Medium Voltage Fuses 2.00 3.74 2.85 Part Number: 700-500* Part Number: 700-530* .08 System Number: 0700500.Z System Number: 0700530.Z For use with all 13/16" (.8125") diameter PT fuses. For use with all 3" diameter fuses. .31 .71 .30 .78 1.15 .038" HOLES .08 1.50 4.50 .05 3.08 4.16 .78 .63 Part Number: 700-520-CL* Mounting Details for Clip Lock System Number: 0700520.ZXCL Clip Lock Design (For CL-14) 3.63 TRIPLE BARREL 3.63 DOUBLE BARREL 4.85 SINGLE BARREL 1.75 Blown Fuse Indicator * One Pair. Dimensions for reference only. (c) 2005 Littelfuse * POWR-GARDTM Products Catalog Bottom Lever In Closed Position 2.00 4.9 TOP VIEW 3.75 2.00 Top Lever in Open Position www.littelfuse.com A 1.00 2.00 .56 Dia. (2) Holes For Mounting Cable/Bus .44 DIA. (2) HOLES 75