70-2R-1IB-5.5

Next Medium Voltage Fuses 2400 - 25,500 VAC s 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. GENERAL INFORMATION 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. 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 the POWR-GARD Products catalog (PF101). 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. Contact the factory or your local Littelfuse representative for additional fuse ratings or custom mounting configurations. 24 Hour Emergency Service is available. Call 1-800-227-0029. APPLICATIONS s s s s s Power Transformer Protection Potential Transformer Protection Motor Controller Back-up Protection Fused Switches Feeder Circuits Bolt-in Mount Fuses 61 Previous Next R Rated Medium Voltage Fuses Current Limiting FEATURES “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 short circuit 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. NEMA Standards for “R” rated medium voltage power fuses require that 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. Part Number System CHARACTERISTICS Voltage Rating: 2,400 volts – 15,500 volts Current Range: 2R – 36R OPTIONS s s s Hermitically sealed for use in hazardous locations (add “S” suffix to part number) Hookeye attachment (add “W” suffix to part number) Bolt-in mounting configurations 130 - 4R -1C - 5.5 Max Voltage (KV) Style (C-Cartridge) No. of Barrels Rating (size) Continuous Current Hookeye Feature* *For hookeye attachment; add “W” suffix to part number 3"DIA 6.38" 9.75" Dim.A Clip Center Dim.B FIGURE 1 D FIGURE 2 DD FIGURE 3 DDD R RATED Catalog Number 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 Old Catalog Number LCK 2R LCK 3R LCK 4R LCK 5R LCK 6R LCK 9R LCK 12R LCK 18R LCK 24R Size 2R 3R 4R 5R 6R 9R 12R 18R 24R Maximum Continuous Current @ 40 deg C. 70 100 130 150 170 200 230 390 450 Dim. A (inches) Dim. B (inches) 7" 10.875" 7" 10.875" Minimum Interrupting Rating RMS Amps 170 250 340 390 500 760 1000 1500 1950 Max Interrupting Rating RMS Asym 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 Figure Number 1 1 1 1 1 1 1 2 2 Add “w” suffix to part number for hookeye attachment. 62 2.75 KV Previous Next R Rated Medium Voltage Fuses Current Limiting 3"DIA 6.38" 9.75" Dim.A (Clip Center) Dim.B FIGURE 4 FIGURE 5 FIGURE 6 R 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 Old Catalog Number LCL 2R LCL 3R LCL 4R LCL 5R LCL 6R LCL 9R LCL 12R LCL 18R LCL 24R — — — — — — LCL 36R — — — — — — — — — 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 Maximum Continuous Current @ 40 deg C. 70 100 130 150 170 200 230 390 450 480 550 600 650 550 600 650 70 100 130 150 170 200 230 390 450 Dim. A (inches) Dim. B (inches) 12" 15.875" 12" 15.875" 12" 15.875" Minimum Interrupting Rating RMS Amps 170 250 340 390 500 760 1000 1500 1950 2100 2400 2600 2900 2400 2600 2900 170 250 340 390 500 760 1000 1500 1950 Max Interrupting Rating RMS (Asym) 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 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 Figure Number 4 4 4 4 4 4 4 5 5 5 5 5 5 6 6 6 4 4 4 4 4 4 4 5 5 14”Clip Centers 5.5 KV 5.5 KV 14" 17.875" 14" 17.875" R RATED 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 — — — — — — — — — Size 2R 3R 4R 5R 6R 9R 12R 18R 24R Maximum Continuous Current @ 40 deg C. 70 100 130 150 170 200 230 390 450 Dim. A (inches) Dim. B (inches) 12" 15.875" 12" 15.875" Minimum Interrupting Rating RMS Amps 190 225 330 440 500 740 955 1440 1910 Max Interrupting Rating RMS (Asym) 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 80,000 Figure Number 4 4 4 4 4 4 4 5 5 Add “w” suffix to part number for hookeye attachment. 8.25 KV 63 Previous Next R Rated Medium Voltage Fuses Current Limiting Littelfuse’s POWR-GARD 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. 3" Dia. Indicator (2) .34" X .660 Slots 1.38" Apart Indicator Indicator 3" Dia. Indicator Dim.B (2) .34" Holes 1.38" Apart Dim.B Dim.B Dim.A FIGURE 7 Dim.A FIGURE 8 FIGURE 9 FIGURE 10 Bolt Mount “B” Inverted Bolt “IB” Maximum Continuous Current @ 40 deg C. 70 100 130 150 170 200 230 390 450 70 100 130 150 170 200 230 390 450 Minimum Interrupting Rating RMS Amps 170 250 240 390 500 760 1000 1500 1950 170 250 340 390 500 760 1000 1500 1950 Max Interrupting Rating RMS (Asym) 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 80,000 R RATED Catalog Number 70-2R-1B-2.75 100-3R-1B-2.75 130-4R-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 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 Old Catalog Number — — Size 2R 3R 4R 5R 6R 9R 12R 18R 24R 2R 3R 4R 5R 6R 9R 12R 18R 24R Dim. A (inches) Dim. B (inches) 4.6" 13" 7.4" 13" Figure Number 7 7 7 7 7 7 7 8 8 9 9 9 9 9 9 9 10 10 2.75 KV 2.75 KV Inverted Bolt “IB” Bolt Mount “B” — — 13" — — 13" 64 Previous Next .44" X .91" Slots (1.53" c.t.c.) 3"Dia. Indicator Indicator Dim.B Dim.B Front View Dim.A FIGURE 11 Dim.A FIGURE 12 Dim.A FIGURE 13 Bolt-In Mount “BI” R RATED Bolt In Mount “BI” Catalog Number 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 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 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 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 Old Catalog Number — — — Size 2R 3R 4R 5R 6R 9R 12R 18R 24R 26R 30R 32R 36R 30R 32R 36R 38R 2R 3R 4R 5R 6R 9R 12R 18R 24R 30R 32R 36R 2R 3R 4R 5R 6R 9R 12R 18R 24R 30R 32R 36R 2R 3R 4R 5R 6R 9R 12R 18R 24R Maximum Continuous Current @ 40 deg C. 70 100 130 150 170 200 230 390 450 480 550 600 650 550 600 650 700 70 100 130 150 170 200 230 390 450 550 600 650 70 100 130 150 170 200 230 390 450 550 600 650 70 100 130 150 170 200 230 390 450 Dim. A (inches) Dim. B (inches) 3.6 18" 7.6 18" Minimum Interrupting Rating RMS Amps 170 250 340 390 500 760 1000 1500 1950 2200 2400 2650 2900 18" Max Interrupting Rating RMS (Asym) 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 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 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 Figure Number 11 11 11 11 11 11 11 12 12 12 12 12 12 13 13 13 13 7 7 7 7 7 7 7 8 8 8 8 8 9 9 9 9 9 9 9 10 10 10 10 10 11 11 11 11 11 11 11 12 12 5.5 KV — 4.6 18" 7.4 18" 8.4 — 170 250 340 390 500 760 1000 1500 1950 2400 2650 2900 170 250 340 390 500 760 1000 1500 1950 2400 2650 2900 190 225 330 400 500 740 955 1440 1910 Inverted Bolt “IB” Bolt Mount “B” 5.5 KV — — 18" 5.5 KV — — 18" Bolt-In Mount “BI” 8.25 KV — 3.6 18" — 7.6 18" 65 Previous Next E Rated Medium Voltage Fuses Current Limiting “E” Rated fuses have time current characteristics designed to provide current limiting protection for power transformers, potential transformers, power centers, feeder centers, and unit sub stations. When properly applied, they can protect against high and low value fault currents. NEMA Standards for “E” rated medium voltage fuses require that fuses rated 100E or less open within 300 seconds (5 minutes) when subjected to an RMS value of 200-240% of the fuse’s continuous current rating; and fuses with an “E” rating larger than 100E must open within 600 seconds (10 minutes) when subjected to an rms current of 220-240% of the fuse’s continuous current rating. These values establish one point on the time-current curve. Application Note: Since these fuses are used for the protection of general purpose circuits which may contain transformers, motors, and other equipment producing inrush and/or overload currents, fuses should generally be rated at 140% of the normal full load current, and circuits should be analyzed to ensure that system load currents will not exceed the current rating of the fuse. CHARACTERISTICS Voltage Rating: 2,400 volts – 38,000 volts Current Range: 10E – 600E OPTIONS s s Hermetically Sealed for use in hazardous locations (add “S” suffix to part number) Clip-lock (CL) and bolt-in styles available. 3"DIA 6.38" 9.75" Dim.A (Clip Center) Dim.B FIGURE 14 FIGURE 15 FIGURE 16 E RATED Catalog Number 10E-1C-2.75 15E-1C-2.75 20E-1C-2.75 25E-1C-2.75 30E-1C-2.75 40E-1C-2.75 50E-1C-2.75 65E-1C-2.75 80E-1C-2.75 100E-1C-2.75 125E-1C-2.75 150E-1C-2.75 200E-1C-2.75 125E-2C-2.75 150E-2C-2.75 175E-2C-2.75 200E-2C-2.75 225E-2C-2.75 250E-2C-2.75 300E-2C-2.75 350E-2C-2.75 400E-2C-2.75 450E-2C-2.75 Old Catalog Number LCX 10E — — — LCX 30E LCX 40E LCX 50E LCX 65E LCX 80E LCX 100E — — — LCX 125E LCX 150E LCX 175E LCX 200E LCX 250E LCX 300E LCX 400E — Size 10E 15E 20E 25E 30E 40E 50E 65E 80E 100E 125E 150E 200E 125E 150E 175E 200E 225E 250E 300E 350E 400E 450E Dim. A (inches) Dim. B (inches) Max Interrupting Rating RMS (Asym) 7" 10.875" 80,000 7" 10.875" 80,000 Figure Number 14 14 14 14 14 14 14 14 14 14 14 14 14 15 15 15 15 15 15 15 15 15 15 66 2.75 Max. KV Previous Next E Rated Medium Voltage Fuses Current Limiting E RATED Catalog Number 10E-1C-5.5 15E-1C-5.5 20E-1C-5.5 25E-1C-5.5 30E-1C-5.5 40E-1C-5.5 50E-1C-5.5 65E-1C-5.5 80E-1C-5.5 100E-1C-5.5 125E-1C-5.5 150E-1C-5.5 175E-1C-5.5 200E-1C-5.5 125E-2C-5.5 150E-2C-5.5 175E-2C-5.5 200E-2C-5.5 250E-2C-5.5 300E-2C-5.5 350E-2C-5.5 400E-2C-5.5 450E-2C-5.5 500E-3C-5.5 550E-3C-5.5 600E-3C-5.5 5NLE-10E 5NLE-15E 5NLE-20E 5NLE-25E 5NLE-30E 5NLE-40E 5NLE-50E 5NLE-65E 5NLE-80E 5NLE-100E 5NLE-125E 5NLE-150E 5NLE-175E 5NLE-200E 5NLE2-225E 5NLE2-250E 5NLE2-300E 5NLE2-350E 5NLE2-400E 5NLE2-450E Old Catalog Number — — — — LCY 30E LCY 40E LCY 50E LCY 60E LCY 80E LCY 100E LCY 125E LCY 150E LCY 175E LCY 200E — — — — LCY 250E LCY 300E LCY 350E LCY 400E LCY 450E — — — Size 10E 15E 20E 25E 30E 40E 50E 65E 80E 100E 125E 150E 175E 200E 125E 150E 175E 200E 250E 300E 350E 400E 450E 500E 550E 660E 10E 15E 20E 25E 30E 40E 50E 65E 80E 100E 125E 150E 175E 200E 225E 250E 300E 350E 400E 450E Dim. A (inches) Dim. B (inches) Max Interrupting Rating RMS (Asym) 12" 15.875" 80,000 12" 15.875" 80,000 12" 15.875" 80,000 Diagram 14 14 14 14 14 14 14 14 14 14 14 14 14 14 15 15 15 15 15 15 15 15 15 16 16 16 14 14 14 14 14 14 14 14 14 14 14 14 14 14 15 15 15 15 15 15 5.5 Max. KV 5.5 Max. KV LCU 30E LCU 40E LCU 50E LCU 65E LCU 80E LCU 100E LCU 125E LCU 150E LCU 175E LCU 200E LCU 250E LCU 300E LCU 350E LCU 400E LCU 450E 14 17-7/8" 80,000 14" 17-7/8" 80,000 67 Previous Next E Rated Medium Voltage Fuses Current Limiting E RATED Catalog Number 10E-1C-8.25 15E-1C-8.25 20E-1C-8.25 25E-1C-8.25 30E-1C-8.25 40E-1C-8.25 50E-1C-8.25 65E-1C-8.25 80E-1C-8.25 100E-1C-8.25 125E-1C-8.25 150E-1C-8.25 125E-2C-8.25 150E-2C-8.25 200E-2C-8.25 250E-2C-8.25 300E-2C-8.25 350E-3C-8.25 400E-3C-8.25 8NLE-10E 8NLE-15E 8NLE-20E 8NLE-25E 8NLE-30E 8NLE-40E 8NLE-50E 8NLE-65E 8NLE-80E 8NLE-100E 8NLE2-100E 8NLE2-125E 8NLE2-150E 8NLE2-200E 8NLE2-250E Old Catalog Number LDZ 30E LDZ 40E LDZ 50E LDZ 65E LDZ 80E LDZ 100E LDZ 125E LDZ 150E LDZ 125E LDZ 150E LDZ 200E LDZ 250E LDZ 300E LDZ 350Z Size 10E 15E 20E 25E 30E 40E 50E 65E 80E 100E 125E 150E 125E 150E 200E 250E 300E 350E 400E 10E 15E 20E 25E 30E 40E 50E 65E 80E 100E 100E 125E 150E 200E 250E Dim. A (inches) Dim. B (inches) Max Interrupting Rating RMS (Asym) 12" 15-7/8" 80,000 12" 15-7/8" 80,000 12" 15-7/8" 80,000 Diagram 14 14 14 14 14 14 14 14 14 14 14 14 15 15 15 15 15 16 16 14 14 14 14 14 14 14 14 14 14 15 15 15 15 15 8.25 Max. KV 8.25 Max. KV LCZ 30E LCZ 40E LCZ 50E LCZ 65E LCZ 80E LCZ 100E LCZ 100E LCZ 125E LCZ 150E LCZ 200E 14" 17-7/8" 80,000 14" 17-7/8" 80,000 E RATED Catalog Number 10E-1C-15.5 15E-1C-15.5 20E-1C-15.5 25E-1C-15.5 30E-1C-15.5 40E-1C-15.5 50E-1C-15.5 65E-1C-15.5 80E-1C-15.5 100E-1C-15.5 65E-2C-15.5 80E-2C-15.5 100E-2C-15.5 125E-2C-15.5 150E-2C-15.5 175E-2C-15.5 200E-2C-15.5 200E-3C-15.5 250E-3C-15.5 300E-3C-15.5 15.5 Max. KV Old Catalog Number LDN 10E LDN 15E LDN 20E LDN 25E LDN 30E LDN 40E LDN 50E LDN 65E LDN 80E LDN 100E LDN 150E LDN 175E Size 10E 15E 20E 25E 30E 40E 50E 65E 80E 100E 65E 80E 100E 125E 150E 175E 200E 200E 250E 300E Dim. A (inches) Dim. B (inches) Max Interrupting Rating RMS (Asym) 15" 18.875" 60,000 15" 18.875" 60,000 15" 18.875" 60,000 Figure Number 14 14 14 14 14 14 14 14 14 14 15 15 15 15 15 15 15 16 16 16 68 Previous Next E Rated Medium Voltage Fuses Current Limiting E RATED Catalog Number 15GSE-65E 15GSE-80E 15GSE-100E 15GSE2-125E 15GSE2-150E 15GSE2-175E 15GSE2-200E 15NLE-10E 15NLE-15E 15NLE-20E 15NLE-25E 15NLE-30E 15NLE-40E 15NLE-50E 15NLE-65E 15NLE-80E 15NLE-100E 15NLE2-80E 15NLE2-100E 15NLE2-125E 15NLE2-150E 15NLE2-175E 15NLE2-200E 15NLE3-150E 15NLE3-175E 15NLE3-250E 15NLE3-300E Old Catalog Number — — Size 65E 80E 100E 125E 150E 175E 200E 10E 15E 20E 25E 30E 40E 50E 65E 80E 100E 80E 100E 125E 150E 175E 200E 150E 175E 250E 300E Dim. A (inches) 18" Dim. B (inches) 21-7/8" Max Interrupting Rating RMS (Asym) 60,000 18" 21-7/8" 60,000 Figure Number 14 14 14 15 15 15 15 14 14 14 14 14 14 14 14 14 14 15 15 15 15 15 15 16 16 16 16 15.5 Max. KV 15.5 Max. KV LCN 30E LCN 40E LCN 50E LCN 65E LCN 80ES LCN 100ES LCN 80E LCN 100E LCN 125X LCN 150E LCN 200ED — 20" 23-7/8" 60,000 20" 23-7/8" 60,000 20" 23-7/8" 60,000 E RATED Catalog Number 15E-1C-25.8 20E-1C-25.8 25E-1C-25.8 30E-1C-25.8 40E-1C-25.8 50E-1C-25.8 65E-2C-25.8 80E-2C-25.8 100E-2C-25.8 Old Catalog Number — — Size 15E 20E 25E 30E 40E 50E 65E 80E 100E Dim. A (inches) Dim. B (inches) Max Interrupting Rating RMS (Asym) 21" 24-5/8" 40,000 21" 24-5/8" 40,000 Figure Number 14 14 14 14 14 14 15 15 15 25.8 Max. KV E RATED Catalog Number 3E-1C-38.0 7E-1C-38.0 10E-1C-38.0 15E-1C-38.0 20E-1C-38.0 25E-1C-38.0 30E-1C-38.0 40E-1C-38.0 50E-2C-38.0 65E-2C-38.0 80E-2C-38.0 Old Catalog Number — — Size 3E 7E 10E 15E 20E 25E 30E 40E 50E 65E 80E Dim. A (inches) Dim. B (inches) Max Interrupting Rating RMS (Asym) 27" 30-5/8" 20,000 27" 30-5/8" 20,000 Figure Number 14 14 14 14 14 14 14 14 15 15 15 38 Max. KV 69 Previous Next E Rated Medium Voltage Fuses Current Limiting 4.31 7.94 11.56 Clip Lock Design The clip lock type designs ensures a positive contact between the fuse and the connection cam. The fuse’s clip lock tab slides in between the clip casting and the cam to prevent the fuse from slipping or blowing out of the holder. This positive contact improves heat dissipation and allows fuses to run cooler. 1.25 AB .25 3.0 FIGURE 17 FIGURE 18 1.25 FIGURE 19 Max Interrupting Rating RMS (Asym) E RATED Catalog Number 10E-1CL-5.5 15E-1CL-5.5 20E-1C-5.5 25E-1CL-5.5 30E-1CL-5.5 40E-1CL-5.5 50E-1CL-5.5 65E-1CL-5.5 80E-1CL-5.5 100E-1CL-5.5 125E-1CL-5.5 150E-1CL-5.5 225E-2CL-5.5 250E-2CL-5.5 300E-2CL-5.5 350E-2CL-5.5 400E-2CL-5.5 450E-2CL-5.5 500E-3CL-5.5 550E-3CL-5.5 600E-3CL-5.5 Old Catalog Number — — — Size 10E 15E 20E 25E 30E 40E 50E 65E 80E 100E 125E 150E 225E 250E 300E 350E 400E 450E 500E 550E 600E Dim. A (inches) Dim. B (inches) 16.38" 15.13" 80,000 17.38" 16.13" 80,000 17.38" 16.13" 80,000 Figure Number 17 17 17 17 17 17 17 17 17 17 17 17 18 18 18 18 18 18 19 19 19 5.5 Max. KV Clip Lock E RATED Catalog Number 10E-1CL-8.25 15E-1CL-8.25 20E-1C-8.25 25E-1CL-8.25 30E-1CL-8.25 40E-1CL-8.25 50E-1CL-8.25 65E-1CL-8.25 80E-1CL-8.25 100E-1CL-8.25 125E-2CL-8.25 150E-2CL-8.25 175E-2CL-8.25 200E-2CL-8.25 225E-2CL-8.25 250E-2CL-8.25 300E-2CL-8.25 350E-3CL-8.25 Old Catalog Number 8.25 Max. KV — — — Size 10E 15E 20E 25E 30E 40E 50E 65E 80E 100E 125E 150E 175E 200E 225E 250E 300E 350E Dim. A (inches) Dim. B (inches) Max Interrupting Rating RMS (Asym) 17.38" 16.13" 80,000 17.38" 16.13" 80,000 17.38" 16.13" 80,000 Max Interrupting Rating RMS (Asym) Figure Number 17 17 17 17 17 17 17 17 17 17 18 18 18 18 18 18 18 19 E RATED Clip Lock Catalog Number 10E-1CL-15.5 15E-1CL-15.5 20E-1CL-15.5 25E-1CL-15.5 30E-1CL-15.5 40E-1CL-15.5 50E-1CL-15.5 65E-1CL-15.5 80E-1CL-15.5 100E-1CL-15.5 125E-2CL-15.5 150E-3CL-15.5 175E-3CL-15.5 200E-3CL-15.5 225E-3CL-15.5 250E-3CL-15.5 300E-3CL-15.5 Old Catalog Number — — — — Size 10E 15E 20E 25E 30E 40E 50E 65E 80E 100E 125 150E 175E 200E 225E 250E 300E Dim. A (inches) Dim. B (inches) 19.8" 18.1" 60,000 22.81" 22.81" 21.13" 19.1" 60,000 60,000 22.81" 19.1" 60,000 Figure Number 17 17 17 17 17 17 17 17 17 17 18 19 19 19 19 19 19 15.5 Max. KV 70 Clip Lock Previous Next E Rated Potential Transformer Fuses Current Limiting Potential Transformer (PT) fuses are current limiting fuses with high interrupting ratings designed for the protection of potential transformers. Application Note: When applying fuses for the protection of transformers, the magnetizing current inrush must be considered. The characteristics of the inrush, which can be matched with a fuse’s time-current curve, should be available from the transformer manufacturer. CHARACTERISTICS Voltage Rating: 600VAC – 25,500 VAC Current Range: 1/2E – 10E B A E PT Catalog Number 3E-4PT-6 5E-4PT-6 7E-4PT-6 10E-4PT-6 1E-4PT-2.4 2E-4PT-2.4 1E-6PT-2.75 2E-6PT-2.75 3E-6PT-2.75 1E-8PT-2.75 2E-8PT-2.75 3E-8PT-2.75 1E-5PT-4.8 2E-5PT-4.8 1/2E-6PT-5.5 1E-6PT-5.5 2E-6PT-5.5 3E-6PT-5.5 5E-6PT-5.5 1/2E-8PT-5.5 1E-8PT-5.5 2E-8PT-5.5 3E-8PT-5.5 5E-8PT-5.5 10E-8PT-5.5 1/2E-8PT-8.25 1E-8PT-8.25 2E-8PT-8.25 3E-8PT-8.25 1/2E-11PT-15.5 1E-11PT-15.5 2E-11PT-15.5 3E-11PT-15.5 3E-16PT-15.5 5E-16PT-15.5 1/2E-16PT-25.5 1E-16PT-25.5 Old Catalog Number Size 3E 5E 7E 10E 1E 2E 1E 2E 3E 1E 2E 3E Length Dim. A (inches) 4.625 4.625 4.625 4.625 4.625 4.625 7.375 7.375 7.375 9.5 9.5 9.5 5.5 5.5 7.375 7.375 7.375 7.375 7.375 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 12.875 12.875 12.875 12.875 17.5 17.5 17.5 17.5 Diameter Dim. B (inches) 0.8125 0.8125 0.8125 0.8125 0.8125 0.8125 1.625 1.625 1.625 1.625 1.625 1.625 0.8125 0.8125 1.625 1.625 1.625 1.625 1.625 1.625 1.625 1.625 1.625 1.625 1.625 1.625 1.625 1.625 1.625 1.625 1.625 1.625 1.625 1.625 1.625 1.625 1.625 Max Interrupting Rating RMS (Asym) 62,500 62,500 62,500 62,500 40,000 40,000 37,500 37,500 37,500 50,000 50,000 50,000 50,000 50,000 37,500 37,500 37,500 37,500 37,500 37,500 37,500 37,500 37,500 37,500 37,500 50,000 50,000 50,000 50,000 80,000 80,000 80,000 80,000 80,000 80,000 43,500 43,500 2.4 Max. KV 600 Volt LCD 1E-4 LCD 2E-4 4.8 Max. KV 2.75 Max. KV LCE 1E-4 LCE 2E-4 1E 2E 1/2E 1E 2E 3E 5E 1/2E 1E 2E 3E 5E 10E 1/2E 1E 2E 3E 5.5 Max. KV LCQ .5E LCQ 1E LCQ 2E LCQ 3E LCQ 5E LCQ 10E 8.25 Max. KV 25.5 Max. KV 15.5 Max. KV LCT .5E LCT 1E LCT 2E LCT 3E 1/2E 1E 2E 3E 3E 5E 1/2E 1E LCJ 1E-4 LCJ 2E-4 71 Previous 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: 700-500* For use with all 13/16" diameter PT fuses. .08 Part Number: 700-530* .41 X1.06 SLOT 1.50 .31 .78 .71 .30 .08 1.56 4.00 For use with all 3” diameter fuses. 1.15 .05 3.08 4.66 * One Pair .78 .63 * One Pair Part Number: 700-520-CL* Clip Lock Design (For CL-14) Mounting Details for Clip Lock 3.63 TRIPLE BARREL DOUBLE BARREL 3.63 Bottom Lever In Closed Position SINGLE BARREL 4.85 Blown Fuse Indicator 2.00 4.9 3.75 2.00 Top Lever in Open Position A 2.00 1.75 1.00 .56 Dia. (2) Holes For Mounting Cable/Bus * One Pair TOP VIEW .44 DIA. (2) HOLES 72