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.
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.
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.
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
• Power Transformer Protection
• Potential Transformer Protection
• Motor Controller Back-up Protection
• Fused Switches
• Feeder Circuits
Bolt-in Mount Fuses
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© 2014 Littelfuse POWR-GARD
®
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POWR-GARD
®
Fuse Datasheet
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 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.
Characteristics
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*
For hookeye attachment; add “W” suffix
to part number
Ordering Number
130-4R-1C-5.5
Max Voltage (KV)
Style:
C (Cartridge)
B (Bolt Mount)
IB (Inverted Bolt Mount)
BI (Bolt-In Mount)
*See web for Bolt Mount, Inverted Bolt Mount, and Bolt-In dimensions
Dimensions
3"DIA
6.38"
No. of Barrels
Rating (size)
Continuous Current
9.75"
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
littelfuse.com/MediumVoltage
to
download the white paper featuring protection
tables, sizing recommendations, and applications.
Dim.A
Clip
Center
Dim.B
Figure 1
D
Cartridge “C”
A
Figure 2
DD
Figure 3
DDD
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-5.5
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© 2014 Littelfuse POWR-GARD
®
Products
Rev: 063014
POWR-GARD
®
Fuse Datasheet
R-RATED MEDIUM VOLTAGE FUSES
R
RATED
ORDERING/
CATALOG
NUMBER
702R1C2.75
1003R1C2.75
1304R1C2.75
1505R1C2.75
1706R1C2.75
2009R1C2.75
23012R1C2.75
39018R2C2.75
45024R2C2.75
ORDERING/
CATALOG
NUMBER
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
ORDERING/
CATALOG
NUMBER
702R1C5.5X
1003R1C5.5X
1304R1C5.5X
1505R1C5.5X
1706R1C5.5X
2009R1C5.5X
23012R1C5.5X
39018R2C5.5X
45024R2C5.5X
55030R2C5.5X
ORDERING/
CATALOG
NUMBER
702R1C8.25
1003R1C8.25
1304R1C8.25
1505R1C8.25
1706R1C8.25
2009R1C8.25
23012R1C8.25
39018R2C8.25
45024R2C8.25
SIZE
2R
3R
4R
5R
6R
9R
12R
18R
24R
MAXIMUM
CONTINUOUS
CURRENT @
40 DEGREES C°
70
100
130
150
170
200
230
390
450
MAXIMUM
CONTINUOUS
CURRENT @
40 DEGREES C°
70
100
130
150
170
200
230
390
450
480
550
600
650
550
600
650
MAXIMUM
CONTINUOUS
CURRENT @
40 DEGREES C°
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. A
(INCHES)
7"
7"
7"
7"
7"
7"
7"
7"
7"
DIM. A
(INCHES)
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
12"
DIM. A
(INCHES)
14"
14"
14"
14"
14"
14"
14"
14"
14"
14”
DIM. A
(INCHES)
12"
12"
12"
12"
12"
12"
12"
12"
12"
DIM. B
(INCHES)
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
10.875"
DIM. B
(INCHES)
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"
DIM. B
(INCHES)
17.875"
17.875"
17.875"
17.875"
17.875"
17.875"
17.875"
17.875"
17.875"
17.875”
DIM. B
(INCHES)
15.875"
15.875"
15.875"
15.875"
15.875"
15.875"
15.875"
15.875"
15.875"
MINIMUM
INTERRUPTING
RATING RMS
AMPS
170
250
340
390
500
760
1000
1500
1950
MINIMUM
INTERRUPTING
RATING RMS
AMPS
170
250
340
390
500
760
1000
1500
1950
2100
2400
2600
2900
2400
2600
2900
MINIMUM
INTERRUPTING
RATING RMS
AMPS
170
250
340
390
500
760
1000
1500
1950
2400
MINIMUM
INTERRUPTING
RATING RMS
AMPS
190
225
330
440
500
740
955
1440
1910
MAXIMUM
INTERRUPTING
RATING RMS
(ASYM)*
80,000
80,000
80,000
80,000
80,000
80,000
80,000
80,000
80,000
MAXIMUM
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
MAXIMUM
INTERRUPTING
RATING RMS
(ASYM)*
80,000
80,000
80,000
80,000
80,000
80,000
80,000
80,000
80,000
80,000
MAXIMUM
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
FIGURE
NUMBER
1
1
1
1
1
1
1
2
2
2
2
2
2
3
3
3
FIGURE
NUMBER
1
1
1
1
1
1
1
2
2
2
FIGURE
NUMBER
1
1
1
1
1
1
1
2
2
R
RATED
2.75 KV
SIZE
2R
3R
4R
5R
6R
9R
12R
18R
24R
26R
30R
32R
36R
30R
32R
36R
R
RATED
5.5 KV
SIZE
2R
3R
4R
5R
6R
9R
12R
18R
24R
30R
R
RATED
5.5 KV
14”CLIP CENTERS
SIZE
2R
3R
4R
5R
6R
9R
12R
18R
24R
* RMS Asymmetrical amperes = RMS Symmetrical amperes x 1.6
For hookeye attachment add “W” suffix to part number
8.25 KV
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®
Fuse Datasheet
E-RATED 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 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.
Characteristics
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)
• Clip-lock (CL) available.
Dimensions
3"DIA
6.38"
9.75"
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
D
Figure 5
DD
Figure 6
DDD
E-RATED
ORDERING/CATALOG
NUMBER
10E1C2.75
15E1C2.75
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
SIZE
10E
15E
20E
25E
30E
40E
50E
65E
80E
100E
125E
150E
200E
125E
150E
200E
250E
300E
350E
400E
450E
DIM. A (INCHES)
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
7"
DIM. B (INCHES)
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"
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
A
FIGURE
NUMBER
4
4
4
4
4
4
4
4
4
4
4
4
4
5
5
5
5
5
5
5
5
* RMS Asymmetrical amperes = RMS Symmetrical amperes x 1.6
2.75 MAX. KV
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© 2014 Littelfuse POWR-GARD
®
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Rev: 063014
POWR-GARD
®
Fuse Datasheet
E-RATED MEDIUM VOLTAGE FUSES
E-RATED
ORDERING/CATALOG
NUMBER
10E1C5.5
15E1C5.5
20E1C5.5
25E1C5.5
30E1C5.5
40E1C5.5
50E1C5.5
65E1C5.5
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
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
600E
DIM. A (INCHES) DIM. B (INCHES)
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"
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
FIGURE NUMBER
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
5.5 MAX. KV
E-RATED
ORDERING/CATALOG
NUMBER
5NLE10E
5NLE15E
5NLE20E
5NLE25E
5NLE30E
5NLE40E
5NLE50E
5NLE65E
5NLE80E
5NLE100E
5NLE125E
5NLE150E
5NLE175E
5NLE200E
5NLE2225E
5NLE2250E
5NLE2300E
5NLE2350E
5NLE2400E
5NLE2450E
SIZE
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)
14”
14”
14”
14”
14”
14”
14”
14”
14”
14”
14“
14”
14”
14”
14”
14”
14”
14”
14”
14”
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
7
⁄
8
"
17
7
⁄
8
"
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
FIGURE NUMBER
4
4
4
4
4
4
4
4
4
4
4
4
4
4
5
5
5
5
5
5
* RMS Asymmetrical amperes = RMS Symmetrical amperes x 1.6
5.5 MAX. KV
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®
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