390-18R-2C-5.5X_技术文档

ꢀ

2400 - 25,500 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.

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 pro-

tection. 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.

Littelfuse now offers a complete 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 now available for virtually any

application. Hermetically sealed fuses for use in hazardous

environments are also offered.

All medium voltage fuses are limited in their ability to inter-

rupt 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).

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

ꢀ

Power Transformer

Protection

ꢀ

Potential Transformer

Protection

ꢀ

Motor Controller Back-up

Protection

ꢀ

Fused Switches

ꢀ

Feeder Circuits

Bolt-in Mount Fuses

61

R Rated Medium Voltage Fuses

Current Limiting

FEATURES

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 over-

load protection and locked rotor protection to the motor. The

controllers are also intended to interrupt low value short cir-

cuits within the capability of the motor controller. This pro-

tects the medium voltage fuse from sustained overcurrents

which are less than their minimum interrupting rating.

Voltage Rating: 2,400 volts – 15,500 volts

Current Range: 2R – 36R

OPTIONS

ꢀ

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

NEMA Standards for “R” rated medium voltage power fuses

require that they operate within 15-35 seconds when sub-

jected to an rms current 100 times the “R” rating. For exam-

ple, 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

130-4R-1C-5.5

Max Voltage (KV)

Style (C-Cartridge)

No. of Barrels

Hookeye

Feature*

Rating (size)

Continuous Current

*For hookeye attach-

ment; add “W” suffix

to part number

6.38"

9.75"

3"DIA

Dim.A

Clip

Dim.B

Center

FIGURE 1

FIGURE 2

FIGURE 3

D

DD

DDD

Maximum

Continuous

Current

Minimum

Interrupting

Rating

Max

Interrupting

Rating

Old

Catalog

Number

R

Catalog

Number

Dim. A

(inches)

Dim. B

(inches)

Figure

Number

RATED

Size

@ 40 deg C.

RMS Amps

RMS Asym

70-2R-1C-2.75

LCK 2R

LCK 3R

LCK 4R

LCK 5R

LCK 6R

LCK 9R

LCK 12R

2R

3R

4R

5R

6R

70

100

130

150

170

200

230

170

250

340

390

500

760

1000

80,000

1

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

7"

10.875"

9R

12R

390-18R-2C-2.75

450-24R-2C-2.75

LCK 18R

LCK 24R

18R

24R

390

450

1500

1950

80,000

2

Add “w” suffix to part number for hookeye attachment.

62

R Rated Medium Voltage Fuses

Current Limiting

6.38"

9.75"

3"DIA

Dim.A

(Clip

Dim.B

Center)

FIGURE 4

FIGURE 5

FIGURE 6

Maximum

Continuous

Current

Minimum

Interrupting

Rating

Max

Interrupting

Rating

Old

Catalog

Number

R

Catalog

Number

Dim. A

(inches)

Dim. B

(inches)

Figure

Number

RATED

Size

@ 40 deg C.

RMS Amps

RMS (Asym)

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

LCL 2R

LCL 3R

LCL 4R

LCL 5R

LCL 6R

LCL 9R

LCL 12R

2R

3R

4R

5R

6R

70

100

130

150

170

200

230

170

250

340

390

500

760

1000

80,000

4

12"

15.875"

9R

12R

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

LCL 18R

LCL 24R

18R

24R

26R

30R

32R

36R

390

450

480

550

600

650

1500

1950

2100

2400

2600

2900

80,000

5

—

12"

15.875"

550-30R-3C-5.5

600-32R-3C-5.5

650-36R-3C-5.5

—

LCL 36R

30R

32R

36R

550

600

650

2400

2600

2900

80,000

6

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

—

2R

3R

4R

5R

6R

70

100

130

150

170

200

230

170

250

340

390

500

760

1000

80,000

4

14"

17.875"

9R

12R

390-18R-2C-5.5X

450-24R-2C-5.5X

—

18R

24R

390

450

1500

1950

80,000

5

Maximum

Continuous

Current

Minimum

Interrupting

Rating

Max

Interrupting

Rating

Old

Catalog

Number

R

Catalog

Number

Dim. A

(inches)

Dim. B

(inches)

Figure

Number

RATED

Size

@ 40 deg C.

RMS Amps

RMS (Asym)

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

—

2R

3R

4R

5R

6R

70

100

130

150

170

200

230

190

225

330

440

500

740

955

80,000

4

12"

15.875"

9R

12R

390-18R-2C-8.25

450-24R-2C-8.25

—

18R

24R

390

450

1440

1910

80,000

5

Add “w” suffix to part number for hookeye attachment.

63

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”

Bolt mount

“BI” Bolt-In mount

“IB” Inverted-Bolt mount

Refer to illustrations for mounting dimensions.

(2) .34" X .660 Slots

Indicator

1.38" Apart

3" Dia.

Indicator

3" Dia.

Indicator

Dim.B

(2) .34" Holes

1.38" Apart

Dim.A

FIGURE 7

FIGURE 8

FIGURE 9

FIGURE 10

Bolt Mount “B”

Inverted Bolt “IB”

Maximum

Minimum

Max

Old

Catalog

Number

Continuous

Current

@ 40 deg C.

Interrupting

Rating

RMS Amps

Interrupting

Rating

RMS (Asym)

R

Catalog

Number

Dim. A

(inches)

Dim. B

(inches)

Figure

Number

RATED

Size

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

2R

3R

4R

5R

6R

70

100

130

150

170

200

230

170

250

240

390

500

760

1000

80,000

7

—

4.6"

13"

9R

12R

390-18R-2B-2.75

450-24R-2B-2.75

18R

24R

390

450

1500

1950

80,000

8

7.4"

13"

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

2R

3R

4R

5R

6R

70

100

130

150

170

200

230

170

250

340

390

500

760

1000

80,000

9

—

13"

9R

12R

390-18R-2IB-2.75

450-24R-2IB-2.75

18R

24R

390

450

1500

1950

80,000

10

64

.44" X .91" Slots (1.53" c.t.c.)

3"Dia.

Indicator

Dim.B

Dim.A

Front View

Dim.A

FIGURE 11

FIGURE 12

FIGURE 13

Bolt-In Mount “BI”

Maximum

Minimum

Max

Old

Catalog

Number

Continuous

Current

@ 40 deg C.

Interrupting

Rating

RMS Amps

Interrupting

Rating

RMS (Asym)

R

Catalog

Number

Dim. A

(inches)

Dim. B

(inches)

Figure

Number

RATED

Size

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

2R

3R

4R

5R

6R

70

100

130

150

170

200

230

170

250

340

390

500

760

1000

80,000

11

—

3.6

7.6

18"

9R

12R

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

18R

24R

26R

30R

32R

36R

390

450

480

550

600

650

1500

1950

2200

2400

2650

2900

80,000

12

—

18"

550-30R-3BI-5.5

600-32R-3BI-5.5

650-36R-3BI-5.5

700-38R-3BI-5.5

30R

32R

36R

38R

550

600

650

700

80,000

13

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

2R

3R

4R

5R

6R

70

100

130

150

170

200

230

170

250

340

390

500

760

1000

80,000

7

—

4.6

18"

9R

12R

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

18R

24R

30R

32R

36R

390

450

550

600

650

1500

1950

2400

2650

2900

80,000

8

7.4

8.4

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

2R

3R

4R

5R

6R

70

100

130

150

170

200

230

170

250

340

390

500

760

1000

80,000

9

—

18"

9R

12R

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

18R

24R

30R

32R

36R

390

450

550

600

650

1500

1950

2400

2650

2900

80,000

10

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

2R

3R

4R

5R

6R

70

100

130

150

170

200

230

190

225

330

400

500

740

955

80,000

11

—

3.6

7.6

18"

9R

12R

390-18R-2BI-8.25

450-24R-2BI-8.25

18R

24R

390

450

1440

1910

80,000

12

65

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.

CHARACTERISTICS

Voltage Rating: 2,400 volts – 38,000 volts

Current Range: 10E – 600E

OPTIONS

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.

ꢀ

Hermetically Sealed for use in hazardous locations

(add “S” suffix to part number)

ꢀ

Clip-lock (CL) and bolt-in styles available.

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 cur-

rents, 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.

6.38"

9.75"

3"DIA

Dim.A

(Clip

Dim.B

Center)

FIGURE 14

FIGURE 15

FIGURE 16

Max

Old

Catalog

Number

Interrupting

Rating

RMS (Asym)

E

Catalog

Number

Dim. A

(inches)

Dim. B

(inches)

Figure

Number

RATED

Size

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

LCX 10E

—

10E

15E

20E

25E

30E

40E

50E

65E

80E

100E

125E

150E

200E

14

—

LCX 30E

LCX 40E

LCX 50E

LCX 65E

LCX 80E

LCX 100E

—

7"

10.875"

80,000

—

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

LCX 125E

LCX 150E

LCX 175E

LCX 200E

125E

150E

175E

200E

225E

250E

300E

350E

400E

450E

15

7"

10.875"

80,000

LCX 250E

LCX 300E

LCX 400E

—

66

E Rated Medium Voltage Fuses

Current Limiting

Max

Old

Catalog

Number

Interrupting

Rating

RMS (Asym)

E

Catalog

Number

Dim. A

(inches)

Dim. B

(inches)

RATED

Size

Diagram

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

—

10E

15E

20E

25E

30E

40E

50E

65E

80E

100E

125E

150E

175E

200E

14

LCY 30E

LCY 40E

LCY 50E

LCY 60E

LCY 80E

LCY 100E

LCY 125E

LCY 150E

LCY 175E

LCY 200E

12"

15.875"

80,000

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

—

125E

150E

175E

200E

250E

300E

350E

400E

450E

15

LCY 250E

LCY 300E

LCY 350E

LCY 400E

LCY 450E

12"

15.875"

80,000

500E-3C-5.5

550E-3C-5.5

600E-3C-5.5

—

500E

550E

660E

16

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

10E

15E

20E

25E

30E

40E

50E

65E

80E

100E

125E

150E

175E

200E

14

LCU 30E

LCU 40E

LCU 50E

LCU 65E

LCU 80E

LCU 100E

LCU 125E

LCU 150E

LCU 175E

LCU 200E

14

17-7/8"

80,000

5NLE2-225E

5NLE2-250E

5NLE2-300E

5NLE2-350E

5NLE2-400E

5NLE2-450E

225E

250E

300E

350E

400E

450E

15

LCU 250E

LCU 300E

LCU 350E

LCU 400E

LCU 450E

14"

17-7/8"

80,000

67

E Rated Medium Voltage Fuses

Current Limiting

Max

Old

Catalog

Number

Interrupting

Rating

RMS (Asym)

E

Catalog

Number

Dim. A

(inches)

Dim. B

(inches)

RATED

Size

Diagram

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

10E

15E

20E

25E

30E

40E

50E

65E

80E

14

LDZ 30E

LDZ 40E

LDZ 50E

LDZ 65E

LDZ 80E

LDZ 100E

LDZ 125E

LDZ 150E

12"

15-7/8"

80,000

100E

125E

150E

125E-2C-8.25

150E-2C-8.25

200E-2C-8.25

250E-2C-8.25

300E-2C-8.25

LDZ 125E

LDZ 150E

LDZ 200E

LDZ 250E

LDZ 300E

125E

150E

200E

250E

300E

15

12"

15-7/8"

80,000

350E-3C-8.25

400E-3C-8.25

LDZ 350Z

350E

400E

16

8NLE-10E

8NLE-15E

8NLE-20E

8NLE-25E

8NLE-30E

8NLE-40E

8NLE-50E

8NLE-65E

8NLE-80E

8NLE-100E

10E

15E

20E

25E

30E

40E

50E

65E

80E

100E

14

LCZ 30E

LCZ 40E

LCZ 50E

LCZ 65E

LCZ 80E

LCZ 100E

14"

17-7/8"

80,000

8NLE2-100E

8NLE2-125E

8NLE2-150E

8NLE2-200E

8NLE2-250E

LCZ 100E

LCZ 125E

LCZ 150E

LCZ 200E

100E

125E

150E

200E

250E

15

Max

Old

Catalog

Number

Interrupting

Rating

RMS (Asym)

E

Catalog

Number

Dim. A

(inches)

Dim. B

(inches)

Figure

Number

RATED

Size

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

LDN 10E

LDN 15E

LDN 20E

LDN 25E

LDN 30E

LDN 40E

LDN 50E

LDN 65E

LDN 80E

LDN 100E

10E

15E

20E

25E

30E

40E

50E

65E

80E

100E

14

15"

18.875"

60,000

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

65E

80E

15

100E

125E

150E

175E

200E

15"

18.875"

60,000

LDN 150E

LDN 175E

200E-3C-15.5

250E-3C-15.5

300E-3C-15.5

200E

250E

300E

16

68

E Rated Medium Voltage Fuses

Current Limiting

Max

Old

Catalog

Number

Interrupting

Rating

RMS (Asym)

E

Catalog

Number

Dim. A

(inches)

Dim. B

(inches)

Figure

Number

RATED

Size

15GSE-65E

15GSE-80E

15GSE-100E

65E

80E

100E

14

18"

60,000

21-7/8"

—

15GSE2-125E

15GSE2-150E

15GSE2-175E

15GSE2-200E

125E

150E

175E

200E

15

15NLE-10E

15NLE-15E

15NLE-20E

15NLE-25E

15NLE-30E

15NLE-40E

15NLE-50E

15NLE-65E

15NLE-80E

15NLE-100E

10E

15E

20E

25E

30E

40E

50E

65E

80E

100E

14

LCN 30E

LCN 40E

LCN 50E

LCN 65E

LCN 80ES

LCN 100ES

20"

23-7/8"

60,000

15NLE2-80E

15NLE2-100E

15NLE2-125E

15NLE2-150E

15NLE2-175E

15NLE2-200E

LCN 80E

LCN 100E

LCN 125X

LCN 150E

80E

100E

125E

150E

175E

200E

15

20"

23-7/8"

60,000

LCN 200ED

—

15NLE3-150E

15NLE3-175E

15NLE3-250E

15NLE3-300E

150E

175E

250E

300E

16

Max

Old

Catalog

Number

Interrupting

Rating

RMS (Asym)

E

Catalog

Number

Dim. A

(inches)

Dim. B

(inches)

Figure

Number

RATED

Size

15E-1C-25.8

20E-1C-25.8

25E-1C-25.8

30E-1C-25.8

40E-1C-25.8

50E-1C-25.8

15E

20E

25E

30E

40E

50E

14

—

21"

24-5/8"

40,000

65E-2C-25.8

80E-2C-25.8

100E-2C-25.8

65E

80E

100E

15

Max

Old

Catalog

Number

Interrupting

Rating

RMS (Asym)

E

Catalog

Number

Dim. A

(inches)

Dim. B

(inches)

Figure

Number

RATED

Size

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

3E

7E

14

10E

15E

20E

25E

30E

40E

—

27"

30-5/8"

20,000

50E-2C-38.0

65E-2C-38.0

80E-2C-38.0

50E

65E

80E

15

69

E Rated Medium Voltage Fuses

Current Limiting

4.31

7.94

11.56

Clip Lock Design

1.25

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.

A

B

.25

3.0

FIGURE 17

FIGURE 18

FIGURE 19

Max

Old

Catalog

Number

Interrupting

Rating

RMS (Asym)

E

Catalog

Number

Dim. A

(inches)

Dim. B

(inches)

Figure

Number

RATED

Size

10E-1CL-5.5

15E-1CL-5.5

20E-1C-5.5

10E

15E

20E

17

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

25E

30E

40E

50E

65E

80E

100E

125E

150E

—

16.38"

15.13"

80,000

225E-2CL-5.5

250E-2CL-5.5

300E-2CL-5.5

350E-2CL-5.5

400E-2CL-5.5

450E-2CL-5.5

225E

250E

300E

350E

400E

450E

18

—

17.38"

16.13"

80,000

500E-3CL-5.5

550E-3CL-5.5

600E-3CL-5.5

500E

550E

600E

19

Max

Old

Catalog

Number

Interrupting

Rating

RMS (Asym)

E

Catalog

Number

Dim. A

(inches)

Dim. B

(inches)

Figure

Number

RATED

Size

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

10E

15E

20E

25E

30E

40E

50E

65E

80E

100E

17

—

17.38"

16.13"

80,000

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

125E

150E

175E

200E

225E

250E

300E

18

—

17.38"

16.13"

80,000

350E-3CL-8.25

350E

19

Max

Old

Catalog

Number

Interrupting

Rating

RMS (Asym)

E

Catalog

Number

Dim. A

(inches)

Dim. B

(inches)

Figure

Number

RATED

Size

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

10E

15E

20E

25E

30E

40E

50E

17

—

19.8"

18.1"

60,000

65E-1CL-15.5

80E-1CL-15.5

100E-1CL-15.5

65E

80E

100E

17

—

22.81"

21.13"

19.1"

60,000

125E-2CL-15.5

125

18

150E-3CL-15.5

175E-3CL-15.5

200E-3CL-15.5

225E-3CL-15.5

250E-3CL-15.5

300E-3CL-15.5

150E

175E

200E

225E

250E

300E

19

—

22.81"

19.1"

60,000

70

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.

CHARACTERISTICS

Voltage Rating: 600VAC – 25,500 VAC

Current Range: 1/2E – 10E

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.

B

A

Max

Old

Catalog

Number

Length

Dim. A

(inches)

Diameter

Dim. B

(inches)

Interrupting

Rating

RMS (Asym)

E

Catalog

Number

PT

Size

3E-4PT-6

3E

5E

7E

4.625

0.8125

62,500

5E-4PT-6

7E-4PT-6

10E-4PT-6

10E

1E-4PT-2.4

2E-4PT-2.4

LCD 1E-4

LCD 2E-4

1E

2E

4.625

0.8125

40,000

1E-6PT-2.75

2E-6PT-2.75

3E-6PT-2.75

1E

2E

3E

7.375

1.625

37,500

1E-8PT-2.75

2E-8PT-2.75

3E-8PT-2.75

1E

2E

3E

9.5

1.625

50,000

1E-5PT-4.8

2E-5PT-4.8

LCE 1E-4

LCE 2E-4

1E

2E

5.5

0.8125

50,000

1/2E-6PT-5.5

1E-6PT-5.5

2E-6PT-5.5

3E-6PT-5.5

5E-6PT-5.5

1/2E

1E

2E

3E

5E

7.375

1.625

37,500

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

LCQ .5E

LCQ 1E

LCQ 2E

LCQ 3E

LCQ 5E

LCQ 10E

1/2E

1E

2E

3E

5E

9.5

1.625

37,500

10E

1/2E-8PT-8.25

1E-8PT-8.25

2E-8PT-8.25

3E-8PT-8.25

1/2E

1E

2E

9.5

1.625

50,000

3E

1/2E-11PT-15.5

1E-11PT-15.5

2E-11PT-15.5

3E-11PT-15.5

LCT .5E

LCT 1E

LCT 2E

LCT 3E

1/2E

1E

2E

12.875

1.625

80,000

3E

3E-16PT-15.5

5E-16PT-15.5

3E

5E

17.5

1.625

80,000

1/2E-16PT-25.5

1E-16PT-25.5

LCJ 1E-4

LCJ 2E-4

1/2E

1E

17.5

1.625

43,500

71

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.

.08

Part Number: 700-500*

Part Number: 700-530*

For use with all 13/16"

diameter PT fuses.

.41 X1.06 SLOT

For use with

all 3” diameter

fuses.

1.50

.31

.71

.30

1.56

4.00

.78

.08

4.66

1.15

.05

3.08

* One Pair

.78

.63

Part Number: 700-520-CL*

Clip Lock Design (For CL-14)

Mounting Details for Clip Lock

TRIPLE BARREL

DOUBLE BARREL

3.63

Bottom Lever In

Closed Position

SINGLE BARREL

4.85

1.75

Blown Fuse

Indicator

1.00

A

2.00

.56 Dia. (2) Holes

For Mounting

Cable/Bus

3.75 2.00

4.9

2.00

Top Lever in

TOP

VIEW

Open Position

* One Pair

.44 DIA. (2) HOLES

72


型号：	390-18R-2C-5.5X
厂家：	LITTELFUSE
描述：	Medium Voltage Fuses 中压熔断器
文件：	总12页 (文件大小：345K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

390-18R-2C-5.5X [LITTELFUSE]

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