2E5PT4.8 [LITTELFUSE]
MEDIUM VOLTAGE FUSES;POWR-GARD® Fuse Datasheet
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.
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.
Description
Littelfuse® offers a 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 available for virtually any application. Hermetically sealed
fuses for use in hazardous environments are also offered.
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.
Contact the factory or your local Littelfuse representative for
additional fuse ratings or custom mounting configurations.
24-Hour Emergency Service - Call 800-227-0029
Applications
• PowerTransformer Protection
• PotentialTransformer Protection
• Motor Controller Back-up Protection
• Fused Switches
• Feeder Circuits
Bolt-in Mount Fuses
© 2014 Littelfuse POWR-GARD® Products
Rev: 063014
1 of 10
littelfuse.com
POWR-GARD® Fuse Datasheet
R-RATED MEDIUM VOLTAGE FUSES
Description
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 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.
Voltage Ratings
Current Range
2,750 V – 8,250 V
2R – 36R
Options
• Hermetically sealed for use in hazardous locations
(add “S” suffix to part number)
• Bolt-in mounting configurations
Hookeye Feature*
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.
For hookeye attachment; add “W” suffix
to part number
Ordering Number
130-4R-1C-5.5
*See web for Bolt Mount, Inverted Bolt Mount, and Bolt-In dimensions
Max Voltage (KV)
Style:
C (Cartridge)
B (Bolt Mount)
IB (Inverted Bolt Mount)
BI (Bolt-In Mount)
No. of Barrels
Rating (size)
Medium Voltage
Fuse Protection
POWR-GARD® medium
voltage fuses provide
short-circuit protection
Continuous Current
Dimensions
for motors and
transformers rated
6.38"
9.75"
3"DIA
2,400 to 38,000 volts AC.
Visit littelfuse.com/MediumVoltage to
download the white paper featuring protection
tables, sizing recommendations, and applications.
Dim.A
Clip
Center
Dim.B
Figure 1
Figure 2
Figure 3
Cartridge “C”
Inverted-Bolt “IB”
Bolt Mount “B”
Sample Part #: 130-4R-1B-5.5
Bolt-In Mount “BI”
Sample Part #: 130-4R-1IB-5.5
Sample Part #: 130-4R-1BI-5.5
© 2014 Littelfuse POWR-GARD® Products
Rev: 063014
2 of 10
littelfuse.com
POWR-GARD® Fuse Datasheet
R-RATED MEDIUM VOLTAGE FUSES
MAXIMUM
ORDERING/
MINIMUM
MAXIMUM
R
CONTINUOUS
CURRENT @
DIM. A
(INCHES)
DIM. B
(INCHES)
INTERRUPTING INTERRUPTING
FIGURE
NUMBER
CATALOG
NUMBER
SIZE
RATING RMS
AMPS
RATING RMS
(ASYM)*
RATED
40 DEGREES C°
702R1C2.75
1003R1C2.75
1304R1C2.75
1505R1C2.75
1706R1C2.75
2009R1C2.75
23012R1C2.75
39018R2C2.75
45024R2C2.75
2R
3R
4R
5R
6R
70
7"
7"
7"
7"
7"
7"
7"
7"
7"
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
170
250
340
390
500
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
100
130
150
170
200
230
390
450
9R
760
12R
18R
24R
1000
1500
1950
MAXIMUM
CONTINUOUS
CURRENT @
MINIMUM
MAXIMUM
ORDERING/
CATALOG
NUMBER
R
DIM. A
(INCHES)
DIM. B
(INCHES)
INTERRUPTING INTERRUPTING
FIGURE
NUMBER
SIZE
RATING RMS
AMPS
RATING RMS
(ASYM)*
RATED
40 DEGREES C°
702R1C5.5
1003R1C5.5
1304R1C5.5
1505R1C5.5
1706R1C5.5
2009R1C5.5
23012R1C5.5
39018R2C5.5
45024R2C5.5
48026R2C5.5
55030R2C5.5
60032R2C5.5
65036R2C5.5
55030R3C5.5
60032R3C5.5
65036R3C5.5
2R
3R
4R
5R
6R
70
12"
12"
12"
12"
12"
12"
12"
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"
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
1
1
1
1
1
1
1
2
2
2
2
2
2
3
3
3
100
130
150
170
200
230
390
450
480
550
600
650
550
600
650
9R
12R
18R
24R
26R
30R
32R
36R
30R
32R
36R
MAXIMUM
CONTINUOUS
CURRENT @
MINIMUM
MAXIMUM
ORDERING/
CATALOG
NUMBER
R
DIM. A
(INCHES)
DIM. B
(INCHES)
INTERRUPTING INTERRUPTING
FIGURE
NUMBER
SIZE
RATING RMS
AMPS
RATING RMS
(ASYM)*
RATED
40 DEGREES C°
702R1C5.5X
1003R1C5.5X
1304R1C5.5X
1505R1C5.5X
1706R1C5.5X
2009R1C5.5X
23012R1C5.5X
39018R2C5.5X
45024R2C5.5X
55030R2C5.5X
2R
3R
4R
5R
6R
70
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
1
1
1
1
1
1
1
2
2
2
100
130
150
170
200
230
390
450
550
9R
12R
18R
24R
30R
MAXIMUM
CONTINUOUS
CURRENT @
MINIMUM
MAXIMUM
ORDERING/
CATALOG
NUMBER
R
DIM. A
(INCHES)
DIM. B
(INCHES)
INTERRUPTING INTERRUPTING
FIGURE
NUMBER
SIZE
RATING RMS
AMPS
RATING RMS
(ASYM)*
RATED
40 DEGREES C°
702R1C8.25
1003R1C8.25
1304R1C8.25
1505R1C8.25
1706R1C8.25
2009R1C8.25
23012R1C8.25
39018R2C8.25
45024R2C8.25
2R
3R
4R
5R
6R
70
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"
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
1
1
1
1
1
1
1
2
2
100
130
150
170
200
230
390
450
9R
12R
18R
24R
* RMS Asymmetrical amperes = RMS Symmetrical amperes x 1.6
For hookeye attachment add “W” suffix to part number
© 2014 Littelfuse POWR-GARD® Products
Rev: 063014
3 of 10
littelfuse.com
POWR-GARD® Fuse Datasheet
E-RATED MEDIUM VOLTAGE FUSES
Description
Characteristics
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.
Voltage Ratings
Current Range
2,750 V – 38,000 V
10E – 600E
Options
• Hermetically sealed for use in hazardous locations
(add “S” suffix to part number)
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 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.
• Clip-lock (CL) available.
Dimensions
6.38"
9.75"
3"DIA
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.
Dim.A
Clip
Center
Dim.B
Figure 4
Figure 5
Figure 6
ORDERING/CATALOG
MAX INTERRUPTING
RATING RMS (ASYM)*
FIGURE
NUMBER
SIZE
DIM. A (INCHES) DIM. B (INCHES)
E-RATED
NUMBER
10E1C2.75
15E1C2.75
10E
15E
20E
25E
30E
40E
50E
65E
80E
100E
125E
150E
200E
125E
150E
200E
250E
300E
350E
400E
450E
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
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
4
4
4
4
4
4
4
4
4
4
4
4
4
5
5
5
5
5
5
5
5
20E1C2.75
25E1C2.75
30E1C2.75
40E1C2.75
50E1C2.75
65E1C2.75
80E1C2.75
100E-1C2.75
125E1C2.75
150E1C2.75
200E1C2.75
125E2C2.75
150E2C2.75
200E2C2.75
250E2C2.75
300E2C2.75
350E2C2.75
400E2C2.75
450E2C2.75
* RMS Asymmetrical amperes = RMS Symmetrical amperes x 1.6
© 2014 Littelfuse POWR-GARD® Products
Rev: 063014
4 of 10
littelfuse.com
POWR-GARD® Fuse Datasheet
E-RATED MEDIUM VOLTAGE FUSES
ORDERING/CATALOG
MAX INTERRUPTING
RATING RMS (ASYM)*
SIZE
DIM. A (INCHES) DIM. B (INCHES)
FIGURE NUMBER
E-RATED
NUMBER
10E1C5.5
15E1C5.5
20E1C5.5
25E1C5.5
30E1C5.5
40E1C5.5
50E1C5.5
65E1C5.5
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
600E
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
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"
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"
15.875"
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
4
4
4
4
4
4
4
4
4
4
4
4
4
4
5
5
5
5
5
5
5
5
5
6
6
6
80E1C5.5
100E1C5.5
125E1C5.5
150E1C5.5
175E1C5.5
200E1C5.5
125E2C5.5
150E2C5.5
175E2C5.5
200E2C5.5
250E2C5.5
300E2C5.5
350E2C5.5
400E2C5.5
450E2C5.5
500E3C5.5
550E3C5.5
600E3C5.5
ORDERING/CATALOG
NUMBER
MAX INTERRUPTING
RATING RMS (ASYM)*
SIZE
DIM. A (INCHES) DIM. B (INCHES)
FIGURE NUMBER
E-RATED
7
8
5NLE10E
5NLE15E
5NLE20E
5NLE25E
5NLE30E
5NLE40E
5NLE50E
5NLE65E
5NLE80E
5NLE100E
5NLE125E
5NLE150E
5NLE175E
5NLE200E
5NLE2225E
5NLE2250E
5NLE2300E
5NLE2350E
5NLE2400E
5NLE2450E
10E
15E
20E
25E
30E
40E
50E
65E
80E
100E
125E
150E
175E
200E
225E
250E
300E
350E
400E
450E
14”
14”
14”
14”
14”
14”
14”
14”
14”
14”
14“
14”
14”
14”
14”
14”
14”
14”
14”
14”
17 ⁄ "
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
4
4
4
4
4
4
4
4
4
4
4
4
4
4
5
5
5
5
5
5
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
* RMS Asymmetrical amperes = RMS Symmetrical amperes x 1.6
© 2014 Littelfuse POWR-GARD® Products
Rev: 063014
5 of 10
littelfuse.com
POWR-GARD® Fuse Datasheet
E-RATED MEDIUM VOLTAGE FUSES
ORDERING/CATALOG
MAX INTERRUPTING
RATING RMS (ASYM)*
SIZE
DIM. A (INCHES)
DIM. B (INCHES)
FIGURE NUMBER
E-RATED
NUMBER
7
8
10E1C8.25
15E1C8.25
20E1C8.25
25E1C8.25
30E1C8.25
40E1C8.25
50E1C8.25
65E1C8.25
80E1C8.25
100E1C8.25
125E1C8.25
150E1C8.25
125E2C8.25
150E2C8.25
200E2C8.25
250E2C8.25
300E2C8.25
350E3C8.25
400E3C8.25
10E
15E
20E
25E
30E
40E
50E
65E
80E
100E
125E
150E
125E
150E
200E
250E
300E
350E
400E
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
15 ⁄ "
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
4
4
4
4
4
4
4
4
4
4
4
4
5
5
5
5
5
6
6
7
8
15 ⁄ "
7
8
15 ⁄ "
7
8
15 ⁄ "
7
8
15 ⁄ "
7
8
15 ⁄ "
7
8
15 ⁄ "
7
8
15 ⁄ "
7
8
15 ⁄ "
7
8
15 ⁄ "
7
8
15 ⁄ "
7
8
15 ⁄ "
7
8
15 ⁄ "
7
8
15 ⁄ "
7
8
15 ⁄ "
7
8
15 ⁄ "
7
8
15 ⁄ "
7
8
15 ⁄ "
7
8
15 ⁄ "
ORDERING/CATALOG
NUMBER
MAX INTERRUPTING
RATING RMS (ASYM)*
SIZE
DIM. A (INCHES)
DIM. B (INCHES)
FIGURE NUMBER
E-RATED
7
8
8NLE10E
8NLE15E
8NLE20E
8NLE25E
8NLE30E
8NLE40E
8NLE50E
8NLE65E
8NLE80E
8NLE100E
8NLE2100E
8NLE2125E
8NLE2150E
8NLE2200E
8NLE2250E
10E
15E
20E
25E
30E
40E
50E
65E
80E
100E
100E
125E
150E
200E
250E
14"
14"
14"
14"
14"
14"
14"
14"
14"
14"
14"
14"
14"
14"
14"
17 ⁄ "
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
4
4
4
5
5
5
5
5
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
7
8
17 ⁄ "
ORDERING/CATALOG
NUMBER
MAX INTERRUPTING
RATING RMS (ASYM)*
SIZE
DIM. A (INCHES)
DIM. B (INCHES)
FIGURE NUMBER
E-RATED
10E1C15.5
15E1C15.5
20E1C15.5
25E1C15.5
30E1C15.5
40E1C15.5
50E1C15.5
65E1C15.5
80E1C15.5
100E1C15.5
65E2C15.5
80E2C15.5
100E2C15.5
125E2C15.5
150E2C15.5
175E2C15.5
200E2C15.5
200E3C15.5
250E3C15.5
300E3C15.5
10E
15E
20E
25E
30E
40E
50E
65E
80E
15"
15"
15"
15"
15"
15"
15"
15"
15"
15"
15"
15"
15"
15"
15"
15"
15"
15"
15"
15"
18.875"
18.875"
18.875"
18.875"
18.875"
18.875"
18.875"
18.875"
18.875"
18.875"
18.875"
18.875"
18.875"
18.875"
18.875"
18.875"
18.875"
18.875"
18.875"
18.875"
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
4
4
4
4
4
4
4
4
4
4
5
5
5
5
5
5
5
6
6
6
100E
65E
80E
100E
125E
150E
175E
200E
200E
250E
300E
* RMS Asymmetrical amperes = RMS Symmetrical amperes x 1.6
© 2014 Littelfuse POWR-GARD® Products
Rev: 063014
6 of 10
littelfuse.com
POWR-GARD® Fuse Datasheet
E-RATED MEDIUM VOLTAGE FUSES
ORDERING/CATALOG
MAX INTERRUPTING
RATING RMS (ASYM)*
FIGURE
SIZE
DIM. A (INCHES)
DIM. B (INCHES)
E-RATED
NUMBER
NUMBER
7
8
15GSE65E
15GSE80E
65E
80E
18"
18"
18"
18"
18"
18"
18"
21 ⁄ "
60,000
60,000
60,000
60,000
60,000
60,000
60,000
4
4
4
5
5
5
5
7
8
21 ⁄ "
7
8
15GSE100E
15GSE2125E
15GSE2150E
15GSE2175E
15GSE2200E
100E
125E
150E
175E
200E
21 ⁄ "
7
8
21 ⁄ "
7
8
21 ⁄ "
7
8
21 ⁄ "
7
8
21 ⁄ "
ORDERING/CATALOG
NUMBER
MAX INTERRUPTING
RATING RMS (ASYM)*
FIGURE
SIZE
DIM. A (INCHES)
DIM. B (INCHES)
E-RATED
NUMBER
7
8
15NLE10E
15NLE15E
15NLE20E
15NLE25E
15NLE30E
15NLE40E
15NLE50E
15NLE65E
15NLE80E
15NLE100E
15NLE280E
15NLE2100E
15NLE2125E
15NLE2150E
15NLE2175E
15NLE2200E
15NLE3150E
15NLE3175E
15NLE3250E
15NLE3300E
10E
15E
20E
25E
30E
40E
50E
65E
80E
20"
20"
20"
20"
20"
20"
20"
20"
20"
20"
20"
20"
20"
20"
20"
20"
20"
20"
20"
20"
23 ⁄ "
60,000
60,000
60,000
60,000
60,000
60,000
60,000
60,000
60,000
60,000
60,000
60,000
60,000
60,000
60,000
60,000
60,000
60,000
60,000
60,000
4
4
4
4
4
4
4
4
4
4
5
5
5
5
5
5
6
6
6
6
7
8
23 ⁄ "
7
8
23 ⁄ "
7
8
23 ⁄ "
7
8
23 ⁄ "
7
8
23 ⁄ "
7
8
23 ⁄ "
7
8
23 ⁄ "
7
8
23 ⁄ "
7
8
100E
80E
23 ⁄ "
7
8
23 ⁄ "
7
8
100E
125E
150E
175E
200E
150E
175E
250E
300E
23 ⁄ "
7
8
23 ⁄ "
7
8
23 ⁄ "
7
8
23 ⁄ "
7
8
23 ⁄ "
7
8
23 ⁄ "
7
8
23 ⁄ "
7
8
23 ⁄ "
7
8
23 ⁄ "
ORDERING/CATALOG
NUMBER
MAX INTERRUPTING
RATING RMS (ASYM)*
FIGURE
SIZE
DIM. A (INCHES)
DIM. B (INCHES)
E-RATED
NUMBER
7
8
15E1C25.8
20E1C25.8
25E1C25.8
30E1C25.8
40E1C25.8
50E1C25.8
65E2C25.8
80E2C25.8
100E2C25.8
15E
20E
25E
30E
40E
50E
65E
80E
100E
21"
21"
21"
21"
21"
21"
21"
21"
21"
24 ⁄ "
40,000
40,000
40,000
40,000
40,000
40,000
40,000
40,000
40,000
4
4
4
4
4
4
5
5
5
7
8
24 ⁄ ”
7
8
24 ⁄ ”
7
8
24 ⁄ ”
7
8
24 ⁄ ”
7
8
24 ⁄ ”
7
8
24 ⁄ ”
7
8
24 ⁄ ”
7
8
24 ⁄ ”
ORDERING/CATALOG
NUMBER
MAX INTERRUPTING
RATING RMS (ASYM)*
FIGURE
SIZE
DIM. A (INCHES)
DIM. B (INCHES)
E-RATED
NUMBER
7
8
3E1C38.0
7E1C38.0
3E
7E
27"
27"
27"
27"
27"
27"
27"
27"
27"
27"
27"
30 ⁄ "
20,000
20,000
20,000
20,000
20,000
20,000
20,000
20,000
20,000
20,000
20,000
4
4
4
4
4
4
4
4
5
5
5
7
8
30 ⁄ ”
7
8
10E1C38.0
15E1C38.0
20E1C38.0
25E1C38.0
30E1C38.0
40E1C38.0
50E2C38.0
65E2C38.0
80E2C38.0
10E
15E
20E
25E
30E
40E
50E
65E
80E
30 ⁄ ”
7
8
30 ⁄ ”
7
8
30 ⁄ ”
7
8
30 ⁄ ”
7
8
30 ⁄ ”
7
8
30 ⁄ ”
7
8
30 ⁄ ”
7
8
30 ⁄ ”
7
8
30 ⁄ ”
* RMS Asymmetrical amperes = RMS Symmetrical amperes x 1.6
© 2014 Littelfuse POWR-GARD® Products
Rev: 063014
7 of 10
littelfuse.com
POWR-GARD® Fuse Datasheet
E-RATED MEDIUM VOLTAGE FUSES
4.31
7.94
11.56
1.25
1.25
A
B
Clip Lock Design
.25
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.
3.0
Figure 7
Figure 8
Figure 9
Dimensions in inches
ORDERING/CATALOG
MAX INTERRUPTING
RATING RMS (ASYM)*
80,000
FIGURE
SIZE
DIM. A (INCHES)
DIM. B (INCHES)
E-RATED
NUMBER
10E1CL5.5
15E1CL5.5
20E1C5.5
NUMBER
10E
15E
16.38"
16.38"
16.38"
16.38"
16.38"
16.38"
16.38"
16.38"
16.38"
16.38"
16.38"
16.38"
17.38"
17.38"
17.38"
17.38"
17.38"
17.38"
17.38"
17.38"
17.38"
15.13"
15.13"
15.13"
15.13"
15.13"
15.13"
15.13"
15.13"
15.13"
15.13"
15.13"
15.13"
16.13"
16.13"
16.13"
16.13"
16.13"
16.13"
16.13"
16.13"
16.13"
7
7
7
7
7
7
7
7
7
7
7
7
8
8
8
8
8
8
9
9
9
80,000
20E
80,000
25E1CL5.5
30E1CL5.5
40E1CL5.5
50E1CL5.5
65E1CL5.5
80E1CL5.5
100E1CL5.5
125E1CL5.5
150E1CL5.5
225E2CL5.5
250E2CL5.5
300E2CL5.5
350E2CL5.5
400E2CL5.5
450E2CL5.5
500E3CL5.5
550E3CL5.5
600E3CL5.5
25E
80,000
30E
80,000
40E
80,000
50E
80,000
65E
80,000
80E
80,000
100E
125E
150E
225E
250E
300E
350E
400E
450E
500E
550E
600E
80,000
80,000
80,000
80,000
80,000
80,000
80,000
80,000
80,000
80,000
80,000
80,000
ORDERING/CATALOG
NUMBER
MAX INTERRUPTING
RATING RMS (ASYM)*
80,000
FIGURE
SIZE
DIM. A (INCHES)
DIM. B (INCHES)
E-RATED
NUMBER
10E1CL8.25
10E
15E
17.38"
17.38"
17.38"
17.38"
17.38"
17.38"
17.38"
17.38"
17.38"
17.38"
17.38"
17.38"
17.38"
17.38"
17.38"
17.38"
17.38"
17.38"
16.13"
16.13"
16.13"
16.13"
16.13"
16.13"
16.13"
16.13"
16.13"
16.13"
16.13"
16.13"
16.13"
16.13"
16.13"
16.13"
16.13"
16.13"
7
7
7
7
7
7
7
7
7
7
8
8
8
8
8
8
8
9
15E1CL8.25
80,000
20E1C8.25
20E
80,000
25E1CL8.25
25E
80,000
30E1CL8.25
30E
80,000
40E1CL8.25
50E1CL8.25
40E
80,000
50E
80,000
65E1CL8.25
65E
80,000
80E1CL8.25
80E
80,000
100E1CL8.25
125E2CL8.25
150E2CL8.25
175E2CL8.25
200E2CL8.25
225E2CL8.25
250E2CL8.25
300E2CL8.25
350E3CL8.25
100E
125E
150E
175E
200E
225E
250E
300E
350E
80,000
80,000
80,000
80,000
80,000
80,000
80,000
80,000
80,000
ORDERING/CATALOG
NUMBER
MAX INTERRUPTING
RATING RMS (ASYM)*
60,000
FIGURE
SIZE
DIM. A (INCHES)
DIM. B (INCHES)
E-RATED
NUMBER
10E1CL15.5
10E
15E
19.8"
19.8"
18.1"
18.1"
7
7
7
7
7
7
7
7
7
7
8
8
8
8
9
9
9
9
15E1CL15.5
60,000
20E1CL15.5
20E
19.8"
18.1"
60,000
25E1CL15.5
25E
19.8"
18.1"
60,000
30E1CL15.5
30E
19.8"
18.1"
60,000
40E1CL15.5
40E
19.8"
18.1"
60,000
50E1CL15.5
50E
19.8"
18.1"
60,000
65E1CL15.5
65E
22.81"
22.81"
22.81"
22.81"
22.81”
22.81"
22.81”
22.81"
22.81"
22.81"
22.81"
21.13"
21.13"
21.13"
21.13”
21.13”
21.13”
21.13”
21.13”
21.13”
21.13”
21.13”
60,000
80E1CL15.5
80E
60,000
100E1CL15.5
125E2CL15.5
150E2CL15.5
175E2CL15.5
200E2CL15.5
150E3CL15.5
200E3CL15.5
250E3CL15.5
300E3CL15.5
100E
125E
150E
175E
200E
150E
200E
250E
300E
60,000
60,000
60,000
60,000
60,000
60,000
60,000
60,000
60,000
* RMS Asymmetrical amperes = RMS Symmetrical amperes x 1.6
© 2014 Littelfuse POWR-GARD® Products
Rev: 063014
8 of 10
littelfuse.com
POWR-GARD® Fuse Datasheet
E-RATED POTENTIAL TRANSFORMER FUSES
Characteristics
Description
PotentialTransformer (PT) fuses are current-limiting fuses
with high interrupting ratings designed for the protection of
potential transformers.
Voltage Ratings
Current Range
625 Vac – 25,800 Vac
ꢀE – 10E
Application Note
Dimensions
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.
B
A
ORDERING/CATALOG
NUMBER
LENGTH DIM. A
DIAMETER DIM. B
(INCHES)
MAX INTERRUPTING
RATING RMS (ASYM)*
SIZE
E-RATED
(INCHES)
3E4PT.6
5E4PT.6
7E4PT.6
10E4PT.6
500E4PT2.4
1E4PT2.4
3E
5E
7E
10E
ꢀE
1E
2E
1E
2E
3E
1E
2E
3E
1E
2E
ꢀE
1E
2E
3E
5E
ꢀE
1E
2E
3E
5E
10E
ꢀE
1E
4.6”
4.6”
4.6”
4.6”
4.6”
4.6”
4.6”
7.4”
0.8125”
0.8125”
0.8125”
0.8125”
0.8125”
0.8125”
0.8125”
1.5625”
1.5625”
1.5625”
1.5625”
1.5625”
1.5625”
0.8125”
0.8125”
1.5625”
1.5625”
1.5625”
1.5625”
1.5625”
1.5625”
1.5625”
1.5625”
1.5625”
1.5625”
1.5625”
1.5625”
1.5625”
1.5625”
1.5625”
1.5625”
1.5625”
1.5625”
1.5625”
1.5625”
1.5625”
1.5625”
1.5625”
37,500
37,500
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
50,000
50,000
50,000
50,000
50,000
50,000
50,000
50,000
50,000
50,000
50,000
50,000
50,000
35,000
35,000
35,000
35,000
35,000
35,000
32,000
32,000
2E4PT2.4
1E6PT2.75
2E6PT2.75
3E6PT2.75
1E8PT2.75
2E8PT2.75
3E8PT2.75
1E5PT4.8
2E5PT4.8
500E6PT5.5
1E6PT5.5
2E6PT5.5
3E6PT5.5
5E6PT5.5
500E8PT5.5
1E8PT5.5
7.4”
7.4”
9.5”
9.5”
9.5”
5.6”
5.6”
7.4”
7.4”
7.4”
7.4”
7.4”
9.5”
9.5”
9.5”
9.5”
9.5”
9.5”
9.5”
9.5”
9.5”
9.5”
12.8”
12.8”
12.8”
12.8”
17.5”
17.5”
17.5”
17.5”
2E8PT5.5
3E8PT5.5
5E8PT5.5
10E8PT5.5
500E8PT8.25
1E8PT8.25
2E8PT8.25
3E8PT8.25
500E11PT15.5
1E11PT15.5
2E11PT15.5
3E11PT15.5
3E16PT15.5
5E16PT15.5
500E16PT25.5
1E16PT25.5
2E
3
ꢀE
1E
2E
3E
3E
5E
ꢀE
1E
* RMS Asymmetrical amperes = RMS Symmetrical amperes x 1.6
© 2014 Littelfuse POWR-GARD® Products
Rev: 063014
9 of 10
littelfuse.com
POWR-GARD® Fuse Datasheet
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 700-156
Part Number 700-300
Ordering Number 0700156.Z
Ordering Number 0700300.Z
9
5
8
For use with 1 /16" (1.5625”) to 1 / ” (1.625”) diameter PT fuses.
For use with 3” diameter fuses.
2.00
Mounting Hole
Dimension
3.74
2.85
Dimensions in inches
Part Number 700-500
Ordering Number 0700500.Z
For use with all 13/16" (.8125”) diameter PT fuses
.71
Part Number 700-530
Ordering Number 0700530.Z
For use with all 3" diameter fuses.
.78
.30
.08
.08
0.38" HOLES
1.50
1.15
4.50
.05
3.08
.31
Dimensions in inches
4.16
.78
.63
Part Number 700-520-CL
Ordering Number 0700520.ZXCL
Clip Lock Design
Mounting Details for Clip Lock
CATALOG NUMBER
DIMENSION A (INCHES)
10E1CL5.5 thru 150E1CL5.5
225E2CL5.5 thru 600E3CL5.5
10E1CL8.25 thru 350E3CL8.25
10E1CL15.5 thru 50E1CL15.5
65E1CL15.5 thru 300E3CL15.5
12.88
13.88
13.88
16.25
19.25
TRIPLE BARREL
DOUBLE BARREL
3.63
3.63
Bottom Lever In
Closed Position
SINGLE BARREL
4.85
1.75
Blown Fuse
Indicator
1.00
A
2.00
4.9
.56 Dia. (2) Holes
For Mounting
Cable/Bus
3.75 2.00
Top Lever in
Open Position
2.00
TOP
VIEW
Dimensions for reference only.
.44 DIA. (2) HOLES
© 2014 Littelfuse POWR-GARD® Products
Rev: 063014
10 of 10
littelfuse.com
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