MEDIUM VOLTAGE FUSES. POWR-GARD Fuse Datasheet. 2,400-38,000 VAC Current-Limiting

Size: px

Start display at page:

Download "MEDIUM VOLTAGE FUSES. POWR-GARD Fuse Datasheet. 2,400-38,000 VAC Current-Limiting"

Vanessa Ford
6 years ago
Views:

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

extension force 2 lb. minimum. General Information The terms Medium Voltage and High Voltage have been used interchangeably by many people to describe fuses operating above 600 volts.

Description Littelfuse offers a selection of E- and R-rated medium voltage fuses for the protection of trans formers, potential transformers, feeders, and motor circuits.

1 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 minimum; extension force 2 lb. minimum. 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. Description Littelfuse offers a selection of E- and R-rated medium voltage fuses for the protection of trans formers, 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 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 - Call Applications Power Transformer Protection Potential Transformer Protection Motor Controller Back-up Protection Fused Switches Feeder Circuits 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. Bolt-in Mount Fuses 1 of 10

R-RATED MEDIUM VOLTAGE FUSES Description R-rated fuses provide required short-circuit protection for medium voltage motors, motor controllers and associated circuitry.

Medium voltage motor controllers contain overload relays which provide both overload protection and locked rotor protection to the motor.

This protects the medium voltage fuse from sustained overcurrents which are less than their minimum interrupting rating.

2 R-RATED MEDIUM VOLTAGE FUSES Description 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 they operate within 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. Ordering Number 130-4R-1C-5.5 Dimensions Dim.A Clip Center 3"DIA Dim.B 6.38" Max Voltage (KV) Style: C (Cartridge) B (Bolt Mount) IB (Inverted Bolt Mount) BI (Bolt-In Mount) No. of Barrels Rating (size) Continuous Current 9.75" Characteristics Voltage Ratings Current Range Options 2,750 V 8,250 V 2R 36R Hermetically sealed for use in hazardous locations (add S suffix to part number) Bolt-in mounting configurations Hookeye Feature* For hookeye attachment; add W suffix to part number * See web for Bolt Mount, Inverted Bolt Mount, and Bolt-In dimensions Medium Voltage Fuse Protection POWR-GARD medium voltage fuses provide short-circuit protection for motors and transformers rated 2,400 to 38,000 volts AC. Visit /MediumVoltage to download the white paper featuring protection tables, sizing recommendations, and applications. Figure D 1 Figure DD 2 Figure DDD 3 Cartridge C A Bolt Mount B Sample Part #: 130-4R-1B-5.5 Inverted-Bolt IB Sample Part #: 130-4R-1IB-5.5 Bolt-In Mount BI Sample Part #: 130-4R-1BI of 10

3 R-RATED MEDIUM VOLTAGE FUSES R RATED 2.75 KV R RATED 5.5 KV R RATED 5.5 KV 14 CLIP CENTERS ORDERING/ CATALOG ORDERING/ CATALOG SIZE CONTINUOUS 40 DEGREES C DIM. A DIM. B MINIMUM AMPS (ASYM)* 702R1C5.5 2R 70 12" " , R1C5.5 3R " " , R1C5.5 4R " " , R1C5.5 5R " " , R1C5.5 6R " " , R1C5.5 9R " " , R1C5.5 12R " " , R2C5.5 18R " " , R2C5.5 24R " " , R2C5.5 26R " " , R2C5.5 30R " " , R2C5.5 32R " " , R2C5.5 36R " " , R3C5.5 30R " " , R3C5.5 32R " " , R3C5.5 36R " " ,000 3 ORDERING/ CATALOG SIZE SIZE CONTINUOUS 40 DEGREES C CONTINUOUS 40 DEGREES C DIM. A DIM. A DIM. B DIM. B MINIMUM AMPS MINIMUM AMPS (ASYM)* 702R1C2.75 2R 70 7" " , R1C2.75 3R 100 7" " , R1C2.75 4R 130 7" " , R1C2.75 5R 150 7" " , R1C2.75 6R 170 7" " , R1C2.75 9R 200 7" " , R1C R 230 7" " , R2C R 390 7" " , R2C R 450 7" " ,000 2 (ASYM)* 702R1C5.5X 2R 70 14" " , R1C5.5X 3R " " , R1C5.5X 4R " " , R1C5.5X 5R " " , R1C5.5X 6R " " , R1C5.5X 9R " " , R1C5.5X 12R " " , R2C5.5X 18R " " , R2C5.5X 24R " " , R2C5.5X 30R ,000 2 R RATED 8.25 KV ORDERING/ CATALOG SIZE CONTINUOUS 40 DEGREES C DIM. A DIM. B MINIMUM AMPS (ASYM)* 702R1C8.25 2R 70 12" " , R1C8.25 3R " " , R1C8.25 4R " " , R1C8.25 5R " " , R1C8.25 6R " " , R1C8.25 9R " " , R1C R " " , R2C R " " , R2C R " " ,000 2 For hookeye attachment add W suffix to part number 3 of 10

4 MEDIUM VOLTAGE FUSES Description 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 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 % of the fuse 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 % 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 in-rush 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 Ratings Current Range Options Dim.A Clip Center 3"DIA Dim.B 2,750 V 38,000 V 10E 600E Hermetically sealed for use in hazardous locations (add S suffix to part number) Clip-lock (CL) available. Dimensions 6.38" 9.75" Figure D 4 Figure DD 5 Figure DDD 6 A 10E1C E 7" " 80, E1C E 7" " 80, E1C E 7" " 80, E1C E 7" " 80, E1C E 7" " 80, E1C E 7" " 80, E1C E 7" " 80, E1C E 7" " 80, E1C E 7" " 80, E-1C E 7" " 80, E1C E 7" " 80, E1C E 7" " 80, E1C E 7" " 80, E2C E 7" " 80, E2C E 7" " 80, E2C E 7" " 80, E2C E 7" " 80, E2C E 7" " 80, E2C E 7" " 80, E2C E 7" " 80, E2C E 7" " 80, MAX. KV 4 of 10

5 MEDIUM VOLTAGE FUSES 5.5 MAX. KV 10E1C5.5 10E 12" " 80, E1C5.5 15E 12" " 80, E1C5.5 20E 12" " 80, E1C5.5 25E 12" " 80, E1C5.5 30E 12" " 80, E1C5.5 40E 12" " 80, E1C5.5 50E 12" " 80, E1C5.5 65E 12" " 80, E1C5.5 80E 12" " 80, E1C E 12" " 80, E1C E 12" " 80, E1C E 12" " 80, E1C E 12" " 80, E1C E 12" " 80, E2C E 12" " 80, E2C E 12" " 80, E2C E 12" " 80, E2C E 12" " 80, E2C E 12" " 80, E2C E 12" " 80, E2C E 12" " 80, E2C E 12" " 80, E2C E 12" " 80, E3C E 12" " 80, E3C E 12" " 80, E3C E 12" " 80, MAX. KV 5NLE10E 10E " 80, NLE15E 15E " 80, NLE20E 20E " 80, NLE25E 25E " 80, NLE30E 30E " 80, NLE40E 40E " 80, NLE50E 50E " 80, NLE65E 65E " 80, NLE80E 80E " 80, NLE100E 100E " 80, NLE125E 125E " 80, NLE150E 150E " 80, NLE175E 175E " 80, NLE200E 200E " 80, NLE2225E 225E " 80, NLE2250E 250E " 80, NLE2300E 300E " 80, NLE2350E 350E " 80, NLE2400E 400E " 80, NLE2450E 450E " 80, of 10

6 MEDIUM VOLTAGE FUSES 8.25 MAX. KV 10E1C E 12" " 80,000, 4 15E1C E 12" " 80, E1C E 12" " 80, E1C E 12" " 80, E1C E 12" " 80, E1C E 12" " 80, E1C E 12" " 80, E1C E 12" " 80, E1C E 12" " 80, E1C E 12" " 80, E1C E 12" " 80, E1C E 12" " 80, E2C E 12" " 80, E2C E 12" " 80, E2C E 12" " 80, E2C E 12" " 80, E2C E 12" " 80, E3C E 12" " 80, E3C E 12" " 80, MAX. KV 8NLE10E 10E 14" " 80, NLE15E 15E 14" " 80, NLE20E 20E 14" " 80, NLE25E 25E 14" " 80, NLE30E 30E 14" " 80, NLE40E 40E 14" " 80, NLE50E 50E 14" " 80, NLE65E 65E 14" " 80, NLE80E 80E 14" " 80, NLE100E 100E 14" " 80, NLE2100E 100E 14" " 80, NLE2125E 125E 14" " 80, NLE2150E 150E 14" " 80, NLE2200E 200E 14" " 80, NLE2250E 250E 14" " 80, MAX. KV 10E1C E 15" " 80, E1C E 15" " 80, E1C E 15" " 80, E1C E 15" " 80, E1C E 15" " 80, E1C E 15" " 80, E1C E 15" " 80, E1C E 15" " 80, E1C E 15" " 80, E1C E 15" " 80, E2C E 15" " 80, E2C E 15" " 80, E2C E 15" " 80, E2C E 15" " 80, E2C E 15" " 80, E2C E 15" " 80, E2C E 15" " 80, E3C E 15" " 80, E3C E 15" " 80, E3C E 15" " 80, of 10

7 MEDIUM VOLTAGE FUSES 15.5 MAX. KV 15GSE65E 65E 18" " 60, GSE80E 80E 18" " 60, GSE100E 100E 18" " 60, GSE2125E 125E 18" " 60, GSE2150E 150E 18" " 60, GSE2175E 175E 18" " 60, GSE2200E 200E 18" " 60, MAX. KV 15NLE10E 10E 20" " 60, NLE15E 15E 20" " 60, NLE20E 20E 20" " 60, NLE25E 25E 20" " 60, NLE30E 30E 20" " 60, NLE40E 40E 20" " 60, NLE50E 50E 20" " 60, NLE65E 65E 20" " 60, NLE80E 80E 20" " 60, NLE100E 100E 20" " 60, NLE280E 80E 20" " 60, NLE2100E 100E 20" " 60, NLE2125E 125E 20" " 60, NLE2150E 150E 20" " 60, NLE2175E 175E 20" " 60, NLE2200E 200E 20" " 60, NLE3150E 150E 20" " 60, NLE3175E 175E 20" " 60, NLE3250E 250E 20" " 60, NLE3300E 300E 20" " 60, MAX. KV 15E1C E 21" " 40, E1C E 21" , E1C E 21" , E1C E 21" , E1C E 21" , E1C E 21" , E2C E 21" , E2C E 21" , E2C E 21" , MAX. KV 3E1C38.0 3E 27" " 20, E1C38.0 7E 27" , E1C E 27" , E1C E 27" , E1C E 27" , E1C E 27" , E1C E 27" , E1C E 27" , E2C E 27" , E2C E 27" , E2C E 27" , of 10

8 MEDIUM VOLTAGE FUSES 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. 10E1CL5.5 10E 16.38" 15.13" 80, E1CL5.5 15E 16.38" 15.13" 80, E1CL5.5 20E 16.38" 15.13" 80, E1CL5.5 25E 16.38" 15.13" 80, E1CL5.5 30E 16.38" 15.13" 80, E1CL5.5 40E 16.38" 15.13" 80, E1CL5.5 50E 16.38" 15.13" 80, E1CL5.5 65E 16.38" 15.13" 80, E1CL5.5 80E 16.38" 15.13" 80, E1CL E 16.38" 15.13" 80, E1CL E 16.38" 15.13" 80, E1CL E 16.38" 15.13" 80, E2CL E 17.38" 16.13" 80, E2CL E 17.38" 16.13" 80, E2CL E 17.38" 16.13" 80, E2CL E 17.38" 16.13" 80, E2CL E 17.38" 16.13" 80, E2CL E 17.38" 16.13" 80, E3CL E 17.38" 16.13" 80, E3CL E 17.38" 16.13" 80, E3CL E 17.38" 16.13" 80, E1CL E 17.38" 16.13" 80, E1CL E 17.38" 16.13" 80, E1C E 17.38" 16.13" 80, E1CL E 17.38" 16.13" 80, E1CL E 17.38" 16.13" 80, E1CL E 17.38" 16.13" 80, E1CL E 17.38" 16.13" 80, E1CL E 17.38" 16.13" 80, E1CL E 17.38" 16.13" 80, E1CL E 17.38" 16.13" 80, E2CL E 17.38" 16.13" 80, E2CL E 17.38" 16.13" 80, E2CL E 17.38" 16.13" 80, E2CL E 17.38" 16.13" 80, E2CL E 17.38" 16.13" 80, E2CL E 17.38" 16.13" 80, E2CL E 17.38" 16.13" 80, E3CL E 17.38" 16.13" 80, E1CL E 19.8" 18.1" 60, E1CL E 19.8" 18.1" 60, E1CL E 19.8" 18.1" 60, E1CL E 19.8" 18.1" 60, E1CL E 19.8" 18.1" 60, E1CL E 19.8" 18.1" 60, E1CL E 19.8" 18.1" 60, E1CL E 22.81" 21.13" 60, E1CL E 22.81" 21.13" 60, E1CL E 22.81" 21.13" 60, E2CL E 22.81" , E2CL E , E2CL E 22.81" , E2CL E , E3CL E 22.81" , E3CL E 22.81" , E3CL E 22.81" , E3CL E 22.81" , MAX. KV CLIP LOCK 8.25 MAX. KV CLIP LOCK 15.5 MAX. KV CLIP LOCK A B Figure 7 Figure 8 Figure 9 Dimensions in inches of 10

9 POTENTIAL TRANSFORMER FUSES Description Potential Transformer (PT) fuses are current-limiting fuses with high interrupting ratings designed for the protection of potential transformers. Characteristics Voltage Ratings 625 Vac 25,800 Vac Current Range 1/2E 10E Application Note When applying fuses for the protection of transformers, the magnetizing current in-rush must be considered. The characteristics of the in-rush, which can be matched with a fuse time-current curve, should be available from the transformer manufacturer. Dimensions A B 625 VOLT 2.75 MAX. KV 2.75 MAX. KV 4.8 MAX. KV 5.5 MAX. KV 8.25 MAX. KV 15.5 MAX. KV 25.8 MAX. KV SIZE LENGTH DIM. A DIAMETER DIM. B 3E4PT.6 3E ,500 5E4PT.6 5E ,500 7E4PT.6 7E ,500 10E4PT.6 10E , E4PT2.4 1/2E ,500 1E4PT2.4 1E ,500 2E4PT2.4 2E ,500 1E6PT2.75 1E ,500 2E6PT2.75 2E ,500 3E6PT2.75 3E ,500 1E8PT2.75 1E ,500 2E8PT2.75 2E ,500 3E8PT2.75 3E ,500 1E5PT4.8 1E ,000 2E5PT4.8 2E , E6PT5.5 1/2E ,000 1E6PT5.5 1E ,000 2E6PT5.5 2E ,000 3E6PT5.5 3E ,000 5E6PT5.5 5E , E8PT5.5 1/2E ,000 1E8PT5.5 1E ,000 2E8PT5.5 2E ,000 3E8PT5.5 3E ,000 5E8PT5.5 5E ,000 10E8PT5.5 10E , E8PT8.25 1/2E ,000 1E8PT8.25 1E ,000 2E8PT8.25 2E ,000 3E8PT , E11PT15.5 1/2E ,000 1E11PT15.5 1E ,000 2E11PT15.5 2E ,000 3E11PT15.5 3E ,000 3E16PT15.5 3E ,000 5E16PT15.5 5E , E16PT25.5 1/2E ,000 1E16PT25.5 1E ,000 9 of 10

LIVE PARTS Description 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.

10 LIVE PARTS Description 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. Part Number Ordering Number Z For use with 1 9 / 16" ( ) to 1 5 /8 (1.625 ) diameter PT fuses. Part Number Ordering Number Z For use with 3 diameter fuses Mounting Hole Dimension Dimensions in inches 2.85 Part Number Ordering Number Z For use with all 13 / 16" (.8125 ) diameter PT fuses Part Number Ordering Number Z For use with all 3" diameter fuses Dimensions in inches Part Number CL Ordering Number ZXCL Clip Lock Design Mounting Details for Clip Lock CATALOG DIMENSION A 10E1CL5.5 thru 150E1CL E2CL5.5 thru 600E3CL E1CL8.25 thru 350E3CL E1CL15.5 thru 50E1CL E1CL15.5 thru 300E3CL TRIPLE BARREL 3.63 DOUBLE BARREL Bottom Lever In Closed Position Dimensions for reference only. Blown Fuse Indicator TOP VIEW Top Lever in Open Position SINGLE BARREL 1.00 A Dia. (2) Holes For Mounting Cable/Bus.44 DIA. (2) HOLES 10 of 10

Section Overview. Table of Contents

Section Overview. Table of Contents Section Overview Littelfuse is your source for a fast replacement of - and R-rated medium voltage fuses. Our emergency service gets you the fuses you need quickly to minimize downtime of your critical