125E2C2.75 [LITTELFUSE]
ELECTRIC FUSE;
| 型号： | 125E2C2.75 |
| 厂家： | 
LITTELFUSE |
| 描述： | ELECTRIC FUSE |
| 文件： | 总10页 (文件大小：420K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
POWR-GARD® Fuses—MediumVoltage
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 is available. Call 800-227-0029,
Option 6.
Applications
•ꢀ PowerTransformer Protection
•ꢀ PotentialTransformer Protection
•ꢀ Motor Controller Back-up Protection
•ꢀ Fused Switches
•ꢀ Feeder Circuits
1
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© JUNE 2011 Littelfuse POWR-GARD Products
POWR-GARD® Fuses—MediumVoltage
R-RATED MEDIUM VOLTAGE FUSES
Current-Limiting
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
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*
For hookeye attachment; add “W” suffix
to part number
Part Number System 130-4R-1C-5.5
*See web for Bolt Mount, Inverted Bolt Mount, and Bolt-W 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
Continuous Current
voltage fuses provide
short-circuit protection
for motors and
transformers rated
Dimensions
6.38"
9.75"
3"DIA
2,400 to 38,000 volts AC.
Visit www.littelfuse.com/technicalcenter
for additional protection tables, sizing
recommendations, and applications.
Dim.A
Clip
Dim.B
Center
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
2
www.littelfuse.com
© JUNE 2011 Littelfuse POWR-GARD Products
POWR-GARD® Fuses—MediumVoltage
R-RATED MEDIUM VOLTAGE FUSES
Current-Limiting
MAxIMUM
MINIMUM
MAxIMUM
SySTEM/
CONTINUOUS
CURRENT @
DIM. A
(INChES)
DIM. B
(INChES)
INTERRUPTING INTERRUPTING
FIGURE
NUMBER
R
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
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
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
4R
340
5R
390
6R
500
9R
760
12R
18R
24R
1000
1500
1950
MAxIMUM
CONTINUOUS
CURRENT @
MINIMUM
MAxIMUM
SySTEM/
CATALOG
NUMBER
DIM. A
(INChES)
DIM. B
(INChES)
INTERRUPTING INTERRUPTING
FIGURE
NUMBER
R
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
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
760
12R
18R
24R
26R
30R
32R
36R
30R
32R
36R
1000
1500
1950
2100
2400
2600
2900
2400
2600
2900
MAxIMUM
CONTINUOUS
CURRENT @
MINIMUM
MAxIMUM
SySTEM/
CATALOG
NUMBER
DIM. A
(INChES)
DIM. B
(INChES)
INTERRUPTING INTERRUPTING
FIGURE
NUMBER
R
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
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
760
12R
18R
24R
30R
1000
1500
1950
2400
MAxIMUM
CONTINUOUS
CURRENT @
MINIMUM
MAxIMUM
SySTEM/
CATALOG
NUMBER
DIM. A
(INChES)
DIM. B
(INChES)
INTERRUPTING INTERRUPTING
FIGURE
NUMBER
R
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
For hookeye attachment; add “W” suffix to part number
3
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© JUNE 2011 Littelfuse POWR-GARD Products
POWR-GARD® Fuses—MediumVoltage
E-RATED MEDIUM VOLTAGE FUSES
Current-Limiting
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
NEMA Standards for E-rated medium voltage fuses require that
fuses rated 100E or less open within 300 seconds
(add “S” suffix to part number)
•ꢀ Clip-lock (CL) and bolt-in styles available.
(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.
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
Dim.A
Clip
Center
Dim.B
to ensure that system load currents will not exceed the current
rating of the fuse.
Figure 4
Figure 5
Figure 6
SySTEM/CATALOG
MAx INTERRUPTING
RATING RMS (ASyM)
FIGURE
NUMBER
E
SIzE
DIM. A (INChES) DIM. B (INChES)
NUMBER
RATED
10E1C2.75
15E1C2.75
10E
15E
20E
25E
30E
40E
50E
65E
80E
100E
125E
150E
200E
125E
150E
200E
225E
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"
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"
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
80,000
4
4
4
4
4
4
4
4
4
4
4
4
4
5
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
225E2C2.75
250E2C2.75
300E2C2.75
350E2C2.75
400E2C2.75
450E2C2.75
4
www.littelfuse.com
© JUNE 2011 Littelfuse POWR-GARD Products
POWR-GARD® Fuses—MediumVoltage
E-RATED MEDIUM VOLTAGE FUSES
Current-Limiting
SySTEM/CATALOG
MAx INTERRUPTING
RATING RMS (ASyM)
E
SIzE
DIM. A (INChES) DIM. B (INChES)
FIGURE NUMBER
NUMBER
RATED
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
SySTEM/CATALOG
NUMBER
MAx INTERRUPTING
RATING RMS (ASyM)
E
SIzE
DIM. A (INChES) DIM. B (INChES)
FIGURE NUMBER
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 ⁄ "
5
www.littelfuse.com
© JUNE 2011 Littelfuse POWR-GARD Products
POWR-GARD® Fuses—MediumVoltage
E-RATED MEDIUM VOLTAGE FUSES
Current-Limiting
SySTEM/CATALOG
MAx INTERRUPTING
RATING RMS (ASyM)
E
SIzE
DIM. A (INChES)
DIM. B (INChES)
FIGURE NUMBER
NUMBER
RATED
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 ⁄ "
SySTEM/CATALOG
NUMBER
MAx INTERRUPTING
RATING RMS (ASyM)
E
SIzE
DIM. A (INChES)
DIM. B (INChES)
FIGURE NUMBER
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 ⁄ "
SySTEM/CATALOG
NUMBER
MAx INTERRUPTING
RATING RMS (ASyM)
E
SIzE
DIM. A (INChES)
DIM. B (INChES)
FIGURE NUMBER
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
6
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© JUNE 2011 Littelfuse POWR-GARD Products
POWR-GARD® Fuses—MediumVoltage
E-RATED MEDIUM VOLTAGE FUSES
Current-Limiting
SySTEM/CATALOG
MAx INTERRUPTING
RATING RMS (ASyM)
FIGURE
E
SIzE
DIM. A (INChES)
DIM. B (INChES)
NUMBER
NUMBER
RATED
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 ⁄ "
SySTEM/CATALOG
NUMBER
MAx INTERRUPTING
RATING RMS (ASyM)
FIGURE
E
SIzE
DIM. A (INChES)
DIM. B (INChES)
NUMBER
RATED
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 ⁄ "
SySTEM/CATALOG
NUMBER
MAx INTERRUPTING
RATING RMS (ASyM)
FIGURE
E
SIzE
DIM. A (INChES)
DIM. B (INChES)
NUMBER
RATED
5
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
5
8
24 ⁄ "
5
8
24 ⁄ "
5
8
24 ⁄ "
5
8
24 ⁄ "
5
8
24 ⁄ "
5
8
24 ⁄ "
5
8
24 ⁄ "
5
8
24 ⁄ "
SySTEM/CATALOG
NUMBER
MAx INTERRUPTING
RATING RMS (ASyM)
FIGURE
E
SIzE
DIM. A (INChES)
DIM. B (INChES)
NUMBER
RATED
5
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
5
8
30 ⁄ "
5
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 ⁄ "
5
8
30 ⁄ "
5
8
30 ⁄ "
5
8
30 ⁄ "
5
8
30 ⁄ "
5
8
30 ⁄ "
5
8
30 ⁄ "
5
8
30 ⁄ "
5
8
30 ⁄ "
7
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© JUNE 2011 Littelfuse POWR-GARD Products
POWR-GARD® Fuses—MediumVoltage
E-RATED MEDIUM VOLTAGE FUSES
Current-Limiting
Dimensions in inches
4.75
7.94
11.56
Clip Lock Design
1.25
1.25
A
B
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.
.25
3.0
Figure 7
Figure 8
Figure 9
SySTEM/CATALOG
MAx INTERRUPTING
RATING RMS (ASyM)
FIGURE
E
SIzE
DIM. A (INChES)
DIM. B (INChES)
NUMBER
NUMBER
RATED
10E1CL5.5
15E1CL5.5
20E1C5.5
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"
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
7
7
7
7
7
7
7
7
7
7
7
7
8
8
8
8
8
8
9
9
9
20E
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
30E
40E
50E
65E
80E
100E
125E
150E
225E
250E
300E
350E
400E
450E
500E
550E
600E
SySTEM/CATALOG
NUMBER
MAx INTERRUPTING
RATING RMS (ASyM)
FIGURE
E
SIzE
DIM. A (INChES)
DIM. B (INChES)
NUMBER
RATED
10E1CL8.25
15E1CL8.25
20E1C8.25
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"
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
7
7
7
7
7
7
7
7
7
7
8
8
8
8
8
8
8
9
20E
25E1CL8.25
30E1CL8.25
40E1CL8.25
50E1CL8.25
65E1CL8.25
80E1CL8.25
100E1CL8.25
125E2CL8.25
150E2CL8.25
175E2CL8.25
200E2CL8.25
225E2CL8.25
250E2CL8.25
300E2CL8.25
350E3CL8.25
25E
30E
40E
50E
65E
80E
100E
125E
150E
175E
200E
225E
250E
300E
350E
SySTEM/CATALOG
NUMBER
MAx INTERRUPTING
RATING RMS (ASyM)
FIGURE
E
SIzE
DIM. A (INChES)
DIM. B (INChES)
NUMBER
RATED
10E1CL15.5
15E1CL15.5
20E1CL15.5
25E1CL15.5
30E1CL15.5
40E1CL15.5
50E1CL15.5
65E1CL15.5
80E1CL15.5
100E1CL15.5
125E2CL15.5
150E2CL15.5
175E2CL15.5
200E2CL15.5
150E3CL15.5
200E3CL15.5
250E3CL15.5
300E3CL15.5
10E
15E
19.8"
19.8"
18.1"
18.1"
18.1"
18.1"
18.1"
18.1"
18.1"
21.13"
21.13"
21.13"
19.1"
19.1”
19.1"
19.1”
19.1"
19.1"
19.1"
19.1"
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
7
7
7
7
7
7
7
7
7
7
8
8
8
8
9
9
9
9
20E
19.8"
25E
19.8"
30E
19.8"
40E
19.8"
50E
19.8"
65E
22.81"
22.81"
22.81"
22.81"
22.81”
22.81"
22.81”
22.81"
22.81"
22.81"
22.81"
80E
100E
125E
150E
175E
200E
150E
200E
250E
300E
8
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© JUNE 2011 Littelfuse POWR-GARD Products
®
Fuses — MediumVoltage
POWR-GARD Fuses—MediumVoltage
E-RATED POTENTIAL TRANSFORMER FUSES
Current-Limiting
Characteristics
Description
Potential Transformer (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
1/2E – 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
SySTEM/CATALOG
NUMBER
DIMENSION A
DIAMETER DIMENSION B
(INChES)
MAx INTERRUPTING
RATING RMS (SyM)
E
SIzE
(INChES)
RATED
3E4PT6
5E4PT6
7E4PT6
10E4PT6
500E4PT2.4
1E4PT2.4
3E
5E
7E
10E
1/2E
1E
4.6”
4.6”
4.6”
4.6”
4.6”
4.6”
0.8125”
0.8125”
0.8125”
0.8125”
0.8125”
0.8125”
37,500
37,500
37,500
37,500
37,500
37,500
2E4PT2.4
2E
4.6”
0.8125”
37,500
1E6PT2.75
2E6PT2.75
3E6PT2.75
1E8PT2.75
2E8PT2.75
3E8PT2.75
1E
2E
3E
1E
2E
3E
7.4”
7.4”
7.4”
9.5”
9.5”
9.5”
1.5625”
1.5625”
1.5625”
1.5625”
1.5625”
1.5625”
37,500
37,500
37,500
37,500
37,500
37,500
1E5PT4.8
1E
5.6”
0.8125”
50,000
2E5PT4.8
2E
5.6”
0.8125”
50,000
1/2E6PT5.5
1E6PT5.5
2E6PT5.5
3E6PT5.5
5E6PT5.5
1/2E8PT5.5
1E8PT5.5
2E8PT5.5
3E8PT5.5
5E8PT5.5
10E8PT5.5
1/2E8PT8.25
1E8PT8.25
2E8PT8.25
3E8PT8.25
1/2E11PT15.5
1E11PT15.5
2E11PT15.5
3E11PT15.5
3E16PT15.5
5E16PT15.5
1/2E
1E
2E
3E
5E
1/2E
1E
2E
3E
5E
10E
1/2E
1E
2E
3
1/2E
1E
2E
3E
3E
7.4”
7.4”
7.4”
7.4”
7.4”
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”
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
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”
5E
1/2E16PT25.5
1/2E
17.5”
1.5625”
32,000
1E16PT25.5
1E
17.5”
1.5625”
32,000
9
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© JUNE 2011 Littelfuse POWR-GARD Products
POWR-GARD® Fuses—MediumVoltage
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
System Number: 0700156.Z
System Number: 0700300.Z
For use with 3" diameter fuses.
9
5
8
For use with 1 /16" to 1 / ” (1.625”) diameter PT fuses.
Dimensions in inches
Dimensions in inches
Part Number: 700-500
Part Number: 700-530
System Number: 0700530.Z
For use with all 3" diameter fuses.
.08
System Number: 0700500.Z
For use with all 13/16" (.8125”) diameter PT fuses
Dimensions in inches
Dimensions in inches
.31
.71
.30
.78
.038" HOLES
.08
1.50
4.50
1.15
.05
3.08
4.16
.78
.63
Part Number: 700-520-CL
System Number: 0700520.ZXCL
Clip Lock Design
Mounting Details for Clip Lock Dimensions in inches
TRIPLE BARREL
3.63
DOUBLE BARREL
Bottom Lever In
Closed Position
3.63
4.85
SINGLE BARREL
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
10
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© JUNE 2011 Littelfuse POWR-GARD Products
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