L13S90_技术文档

Special Purpose Fuses

Semiconductor Fuses

150 – 1300 VAC • Very Fast Acting • 1 – 6000 Amperes

Semiconductor Fuses

Littelfuse Semiconductor fuses are very fast acting fuses designed

specifically for the protection of diodes, thyristors, triacs, and other

solid-state power semiconductor devices. These fuses are used in

power electronic applications including variable speed drives, power

rectifiers, UPS systems, and DC power supplies. They can be used

wherever extremely fast acting, current-limiting fuses are needed to

provide superior protection against the potentially damaging effects of

short-circuit currents.

The extensive line of Littelfuse Semiconductor fuses includes the

traditional round body fuses, enhanced state-of-the-art round body

fuses, and North American style square body fuses. Available ratings

range from 150 to 1300 volts and up to 6000 amps.

Applications

Semiconductor fuses are designed specifically for supplementary

protection of semiconducting devices such as silicon controlled rectifiers

(SCR’s), diodes, thyristors, triacs, transistors, and similar solid-state

devices. These devices are used in power equipment including variable

speed drives, power rectifiers, UPS systems, DC power supplies, and in

a wide range of electronic equipment.

May be used wherever extremely fast acting, current-limiting fuses with

no time-delay are required.

Features & Benefits

•

Extremely current-limiting

Low I t and peak let-through currents

Low watts loss

High Interrupting ratings

UL Recognized

Wide range of ampere ratings

Optional mounting types

DC ratings

Superior cycling abilities

Compact sizes

2

Optional blown fuse indicators

Ratings

150V:

250V:

300V:

500V:

600V:

700V:

1 – 6000A

1 – 4500A

35 – 4500A

10 – 1200A

1 – 2000A

6 – 2500A

1000V: 15 – 1000A

1200V: 1 – 30A

1300V: 50 – 1800A

Recommended Fuse Blocks:

LSCR and 1LS series: Refer to the Blocks & Holders section of this catalog

for additional information.

84

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•

Special Purpose Fuses

Traditional Semiconductor Fuses

150/250/500/600/700 VAC • Very Fast Acting • 1 – 1200 Amperes

Series & Voltage

Specifications

Ampere

Ratings

L15S

150V AC

150V DC (1 – 60A)

L25S*

250V AC

250V DC (1 – 200A)

L50S

500V AC

450V DC

L70S*

700V AC

650V DC

L60S

600V AC

KLC‡

600V AC

Voltage Ratings:

L15S:

150 V AC/DC (1 – 60A)

100V DC (70 – 1000A) 200V DC (225 – 800A)

150 VAC (70 – 1000A)

100 VDC (70 – 1000A)

250 V AC/DC (1 – 200A)

250 VAC (225 – 800A)

200 VDC (225 – 800A)

500 VAC/450 VDC

600 VAC

1

2

L15S 1

L15S 2

L15S 3

L15S 4

L15S 5

L15S 6

L15S 7

L15S 8

L15S 9

L15S 10

L15S 12

L15S 15

–

L25S 1

L25S 2

L25S 3

L25S 4

L25S 5

L25S 6

–

L60S 1

L60S 2

L60S 3

L60S 4

L60S 5

L60S 6

–

KLC 1

KLC 2

KLC 3

KLC 4

KLC 5

KLC 6

KLC 7

KLC 8

–

L25S:

3

–

4

–

L50S:

L60S:

KLC:

5

–

6

–

600 VAC

700VAC/650VDC

7

–

L70S:

8

L25S 8

–

L60S 8

–

9

–

Interrupting Rating:

AC:

10

12

L25S 10

L25S 12

L25S 15

–

L50S 10

L50S 12

L50S 15

–

L60S 10

L60S 12

L60S 15

KLC 10

KLC 12

KLC 15

L70S 10

–

200,000 rms amperes

(L15S series 100,000A)

20,000 amperes

DC:

15

L70S 15

–

1

2

17 ⁄

L60S 17 ⁄

KLC 17 ⁄

Ampere Range:

1 – 1200 amperes

20

25

L15S 20

L15S 25

L15S 30

L15S 35

L15S 40

L15S 45

L15S 50

L15S 60

L15S 70

L15S 80

L15S 90

L15S 100

–

L25S 20

L25S 25

L25S 30

L25S 35

L25S 40

L25S 45

L25S 50

L25S 60

L25S 70

L25S 80

L25S 90

L25S 100

–

L50S 20

L50S 25

L50S 30

L50S 35

L50S 40

–

L60S 20

L60S 25

L60S 30

L60S 35

L60S 40

L60S 45

L60S 50

L60S 60

L60S 70

L60S 80

L60S 90

KLC 20

KLC 25

KLC 30

KLC 35

KLC 40

KLC 45

KLC 50

KLC 60

KLC 70

KLC 80

KLC 90

L70S 20

L70S 25

L70S 30

L70S 35

L70S 40

–

See Rating Table for ratings available in each

series.

30

35

Approvals:

40

UL Recognized under the Components

Program and CSA Recognized under the

Component Acceptance Program.

UL File No: E71611

45

50

L50S 50

L50S 60

L50S 70

L50S 80

L50S 90

L50S 100

–

L70S 50

L70S 60

L70S 70

L70S 80

L70S 90

L70S 100

–

60

70

CSA File No: LR29862

80

L25S series fuses are Littelfuse Certified for

DC ratings shown in Rating Table.

90

100

110

125

150

175

200

225

250

275

300

350

400

450

500

550

600

700

800

900

1000

1200

L60S 100

–

KLC 100

KLC 110

KLC 125

KLC 150

KLC 175

KLC 200

KLC 225

KLC 250

–

*For availability of RoHS compliant

product, call 1-800-TEC-FUSE.

L15S 125

L15S 150

–

L25S 125

L25S 150

L25S 175

L25S 200

L25S 225

L25S 250

L25S 275

L25S 300

L25S 350

L25S 400

L25S 450

L25S 500

–

L50S 125

L50S 150

L50S 175

L50S 200

L50S 225

L50S 250

L50S 275

L50S 300

L50S 350

L50S 400

L50S 450

L50S 500

L50S 550

L50S 600

L50S 700

L50S 800

LA50P9004

LA50P10004

LA50P12004

L60S 125

L60S 150

L60S 175

L60S 200

L60S 225

L60S 250

–

L70S 125

L70S 150

L70S 175

L70S 200

L70S 225

L70S 250

–

L15S 200

–

L15S 250

–

L15S 300

L15S 350

L15S 400

L15S 450

L15S 500

–

L60S 300

L60S 350

L60S 400

L60S 450

L60S 500

–

KLC 300

KLC 350

KLC 400

KLC 450

KLC 500

–

L70S 300

L70S 350

L70S 400

L70S 450

L70S 500

–

L15S 600

–

L25S 600

L25S 700

L25S 800

–

L60S 600

L60S 700

L60S 800

–

KLC 600

KLC 700

KLC 800

–

L70S 600

L70S 700

L70S 800

LA70P9004

LA70P10004

LA70P12004

L15S 800

–

L15S 1000

–

‡ KLC series fuses are recommended for replacement use only.

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•

Special Purpose Fuses

Traditional Semiconductor Fuses

150/250/500/600/700 VAC • Very Fast Acting • 1 – 1000 Amperes

L15S SERIES, 150 VOLTS AC

(Replaces KLA, KLW, L13S)

Dimensions in Inches (mm in parentheses)

Ampere

Rating

Fig.

No.

A

1 ⁄

(38.1)

2

B

C

D

E

F

G

H

1

3

13

2

8

32

⁄

1 – 30

31 – 60

1

3

—

(9.5)

(10.3)

5

13

8

16

⁄

—

1

—

(50.8)

(15.9)

(20.6)

5

7

3

43

5

3

2²¹

⁄

32

8

16

32

64

16

1 ⁄

2 ⁄

61 – 450

451 – 1000

(29.4)

(47.6)

(55.6)

(67.5)

(25.4)

(17.1)

1

(7.9)

(4.8)

1

15

9

1

13

1

4

16

2

32

4

1 ⁄

2 ⁄

3 ⁄

1 ⁄

⁄

(31.8)

(49.2)

(65.1)

(88.9)

(38.1)

(25.4)

(10.3)

(6.4)

L25S SERIES, 250 VOLTS AC

(Replaces KLB)

Dimensions in Inches (mm in parentheses)

Ampere

Rating

Fig.

No.

A

2

B

C

D

E

F

G

H

1

9

2

16

⁄

1 – 30

31 – 60

1

2

3

—

(50.8)

(12.7)

(14.3)

5

1

3

13

23

11

1

8

4

2

16

32

8

1 ⁄

2 ⁄

3 ⁄

⁄

(41.3)

(57.2)

(63.5)

(81.0)

(20.6)

(18.3)

1

(8.7)

(3.2)

5

7

1

7

5

3

8

16

8

32

16

1 ⁄

2 ⁄

3 ⁄

1 ⁄

⁄

61 – 200

201 – 700

701 – 800

(41.3)

(58.7)

(61.9)

(79.4)

(31.0)

(25.4)

1

(7.9)

(4.8)

19

9

1

13

1

2²⁹

⁄

3²⁷

⁄

1 ⁄

⁄

32

2

32

4

1 ⁄

2 ⁄

(40.5)

(57.9)

(73.8)

(97.6)

(38.1)

2

(25.4)

(10.3)

(6.4)

19

9

1

13

1

2²⁹

⁄

3²⁷

⁄

1 ⁄

⁄

32

2

32

4

1 ⁄

2 ⁄

(40.5)

(57.9)

(73.8)

(97.6)

(50.8)

(38.1)

(10.3)

(6.4)

L50S SERIES, 500 VOLTS AC / 450 VOLTS DC

(Replaces KLH)

Ampere

Rating

Fig.

No.

Dimensions in Inches (mm in parentheses)

A

2

B

C

⁄

D

⁄

E

F

G

H

1

9

2

16

10 – 30

31 – 60

1

2

3

—

(50.8)

(12.7)

(14.3)

5

1

3

13

23

11

1

8

4

2

16

32

8

1 ⁄

2 ⁄

3 ⁄

⁄

(41.3)

(57.2)

(63.5)

3

(81.0)

3 ⁄

(20.6)

1

(18.3)

⁄

(19.1)

1

(8.7)

(3.2)

1

11

5

3

11

1

8

16

8

4

32

8

2 ⁄

⁄

61 – 100

101 – 200

201 – 400

401 – 600

601 – 800

(54.0)

(68.3)

(76.2)

(92.1)

(25.4)

(8.7)

(3.2)

1

13

15

5

7

5

3

8

16

8

32

16

2 ⁄

3 ⁄

1 ⁄

⁄

(54.0)

(71.4)

(74.6)

⁄

(92.1)

4 ⁄

(31.0)

1 ⁄

(25.4)

1

(7.9)

(4.8)

3

11

1

13

1

2²⁵

⁄

3¹³

⁄

32

2

32

4

2 ⁄

(53.2)

(70.6)

(86.5)

3 ⁄

(110.3)

4 ⁄

(38.1)

2

(25.4)

1 ⁄

(10.3)

(6.4)

7

17

15

1

13

1

2 ⁄

2²⁹

⁄

32

2

32

4

(56.4)

(73.8)

(89.7)

4 ⁄

(113.5)

(50.8)

2 ⁄

(38.1)

2

(10.3)

(6.4)

7

9

5

1

17

3

6¹⁵

⁄

32

8

32

2

32

8

2 ⁄

4 ⁄

(56.4)

(108.7)

(117.5)

(164.3)

(63.5)

(50.8)

(13.5)

(9.5)

F

D

A

B

C

D

H

G

C

E

Contact Littelfuse for characteristic curves.

A

Fig. 1

Fig, 2

86

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•

Special Purpose Fuses

Traditional Semiconductor Fuses

150/250/500/600/700 VAC • Very Fast Acting • 1 – 1000 Amperes

L60S SERIES, 600 VOLTS AC

Dimensions in Inches (mm in parentheses)

Ampere

Rating

Fig.

No.

A

5

B

C

D

E

F

G

H

5

13

8

16

⁄

1 – 30

1

2

—

(127.0)

(15.9)

(20.6)

7

11

3

13

23

11

1

2²⁵

⁄

3 ⁄

4 ⁄

⁄

32

16

8

16

32

8

31 – 60

(70.6)

(87.3)

(93.7)

(111.1)

(20.6)

(18.3)

(8.7)

(3.2)

17

1

23

11

1

2²⁹

⁄

3 ⁄

3²⁵

⁄

4¹⁵

⁄

1 ⁄

⁄

32

16

32

8

61 – 100

101 – 200

201 – 400

401 – 600

601 – 800

(73.8)

(89.7)

(96.0)

(113.5)

(27.0)

(18.3)

1

(8.7)

(3.2)

9

3

13

5

3

2²⁹

⁄

3 ⁄

4 ⁄

1 ⁄

⁄

32

16

4

32

16

(73.8)

(90.5)

(95.3)

(111.9)

(33.3)

(25.4)

1

(7.9)

(4.8)

5

1

37

13

1

2²⁹

⁄

3³¹

⁄

4 ⁄

5 ⁄

1 ⁄

⁄

32

8

64

32

4

(73.8)

(100.8)

(105.6)

(130.2)

(40.1)

(25.4)

(10.3)

(6.4)

7

9

1

13

1

2 ⁄

3³¹

⁄

4 ⁄

5 ⁄

2 ⁄

1 ⁄

⁄

8

32

64

8

16

2

32

4

(73.0)

(100.8)

(105.2)

(130.2)

(52.8)

(38.1)

2

(10.3)

(6.4)

1

5

11

1

17

3

32

4

2

32

8

3 ⁄

5 ⁄

7 ⁄

2 ⁄

⁄

(77.0)

(133.4)

(135.7)

(184.2)

(63.5)

(50.8)

(13.5)

(9.5

L70S SERIES, 700 VOLTS AC / 650 VOLTS DC

Dimensions in Inches (mm in parentheses)

Ampere

Rating

Fig.

No.

A

2

B

C

D

E

—

1

F

G

H

J

1

9

2

16

⁄

10 – 30

31 – 60

1

3

4

—

(50.8)

(12.7)

(14.3)

7

3

43

11

1

3²⁵

⁄

4 ⁄

⁄

8

16

32

8

64

32

8

2 ⁄

3 ⁄

—

(73.0)

(87.3)

(96.0)

(111.1)

(25.4)

(17.1)

(8.7)

(3.2)

7

9

11

3

7

29

5

3

8

16

8

32

16

2 ⁄

3 ⁄

4 ⁄

1 ⁄

⁄

61 – 100

101 – 200

201 – 400

401 – 600

601 – 800

(73.0)

(90.5)

(93.7)

(111.1)

(31.0)

(22.9)

1

(7.9)

(4.8)

17

5

3

1

13

1

2²⁷

⁄

3 ⁄

4 ⁄

5 ⁄

1 ⁄

⁄

32

2

32

4

(72.2)

(89.7)

(105.6)

(129.4)

(38.1)

2

(25.4)

(10.3)

(6.4)

17

5

3

1

13

1

2²⁷

⁄

3 ⁄

4 ⁄

5 ⁄

1 ⁄

⁄

32

2

32

4

(72.2)

(89.7)

(105.6)

(129.4)

(50.8)

(38.1)

2

(10.3)

(6.4)

1

3

1

17

3

2²⁷

⁄

4²⁹

⁄

5 ⁄

7 ⁄

2 ⁄

⁄

32

4

32

2

32

8

—

(72.2)

(124.6)

(133.4)

(180.2)

(63.5)

(50.8)

2

(50.8)

(13.5)

(9.5)

5

7

5

3

5

6¹³

⁄

2 ⁄

⁄

16

8

16

3 ⁄

5 ⁄

—

(84.1)

(134.9)

(173.0)

(73.0)

(15.9)

(9.5)

(7.9)

F

KLC SERIES, 600 VOLTS AC

H

A

B

C

D

G

Dimensions in Inches (mm in parentheses)

Ampere

Rating

Fig.

No.

E

A

1 ⁄

B

2 ⁄

C

D

2 ⁄

E

F

G

H

7

1

7

9

13

1

3

8

2

8

16

32

4

64

⁄

1 – 30

2

3

—

(47.6)

(63.5)

(73.0)

(14.3)

(10.3)

(6.4)

(1.2)

Fig. 3

3

5

13

23

11

1

4

8

16

32

8

2 ⁄

3 ⁄

4 ⁄

⁄

31 – 60

(69.9)

(85.7)

(92.1)

(109.5)

5

(20.6)

1

(18.3)

(8.7)

(3.2)

7

1

3

13

1

2 ⁄

3²¹

⁄

4 ⁄

⁄

8

32

16

4

32

8

61 – 100

101 – 200

201 – 400

401 – 800

(73.0)

(92.9)

(103.2)

(127.0)

(25.4)

(19.1)

1

(10.3)

(3.2)

2²⁷

⁄

3 ⁄

4 ⁄

5 ⁄

1 ⁄

⁄

F

17

3

1

13

1

32

8

32

2

32

4

(72.2)

(89.7)

(111.1)

(129.4)

(38.1)

2

(25.4)

(10.3)

(6.4)

J

27

1

5

9

1

2²⁷

⁄

4²¹

⁄

4 ⁄

6 ⁄

1 ⁄

⁄

A

B

C

G

32

4

8

16

4

H

(72.2)

(118.3)

(123.0)

(158.8)

(50.8)

(41.3)

2

(14.3)

(6.4)

E

11

1

9

3

2²⁷

⁄

4²¹

⁄

5 ⁄

6 ⁄

2 ⁄

⁄

32

4

2

16

8

(72.2)

(118.3)

(135.7)

(158.8)

(63.5)

(50.8)

(14.3)

(9.5)

Fig. 4

Contact Littelfuse for characteristic curves.

w w w . l i t t e l f u s e . c o m

87

•

Special Purpose Fuses

LA15QS Semiconductor Fuses

150 VAC • Very Fast Acting • 1 – 6000 Amperes

Littelfuse LA15QS series Semiconductor fuses were designed for the

specific protection of diodes and other semiconductor devices rated

150VAC/DC. The LA15QS product line compact design is perfect for

those applications that have limitations on available space.

Features

Low I²t minimizes damage to protected components on short-circuit.

Controlled arc voltage reduces stress to circuit components during

fuse clearing.

•

Choice of mounting types provides options for unique termination

requirements.

Indicator options allow identification of blown fuses.

Applications

Protection of heavy duty devices such as electromechanical rectifiers.

Ordering Information

LA 15 QS 400 -4 TI

Littelfuse

Voltage

(150)

Style

Ampere Rating

Mounting Type

Ferrule

1

Ferrule, midget dim.

Blades/Bolt-in

2

4

Hockey Puck, bolt-in

128

Integral Blown-

Fuse Indicator

Trigger Indicator

Trigger Actuator

TI

IL

Note: Mounting types and integral blown fuse indicators are optional for

specified ratings.

Specifications

Voltage Rating:

AC: 150 volts

DC: 150 volts

Interrupting Rating:

Ampere Range:

Approvals:

100,000 Amperes

1 – 6000 Amperes

UL Recognized under the components program.

Contact Littelfuse for characteristic curves.

88

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•

Special Purpose Fuses

LA15QS Semiconductor Fuses

150 VAC • Very Fast Acting • 1 – 6000 Amperes

Catalog Numbers & Technical Data

Maximum

Watts Loss @

Maximum

Watts Loss @

Ampere

Rating Catalog Number

Littelfuse

Mounting

Type

Ampere

Rating Catalog Number

Littelfuse

Mounting

Type

Clearing I²t @150 Rated Current

VAC (A²S x 10³)

(W)

0.68

1.3

1.7

2.1

2.8

3.1

2.2

2.5

2.6

3

4

5.2

5.6

9

VAC (A²S x 10³)

(W)

27

33

40

45

50

30

35

57

75

88

100

130

165

195

240

260

1

2

3

4

5

6

7

8

LA15QS1-2

LA15QS2-2

LA15QS3-2

LA15QS4-2

LA15QS5-2

LA15QS6-2

LA15QS7-2

LA15QS8-2

2

1

4TI

1

4

1

4

4TI

4

4TI

4

4TI

4

4TI

4

4IL

4TI

4

4IL

4

0.0002

0.001

0.003

0.007

0.012

0.022

0.011

0.015

0.019

0.030

0.042

0.072

0.14

250

300

350

400

450

500

600

800

1000

1200

1500

2000

2500

3000

3500

4000

5000

6000

LA15QS250-4TI

LA15QS300-4

LA15QS300-4IL

LA15QS300-4TL

LA15QS350-4

LA15QS350-4TI

LA15QS400-4

LA15QS400-4IL

LA15QS400-4TI

LA15QS450-4

LA15QS450-4IL

LA15QS500-4

LA15QS500-4IL

LA15QS600-4

LA15QS600-4IL

LA15QS800-4

LA15QS1000-4

LA15QS1000-4IL

LA15QS1000-4TI

LA15QS1000-128

LA15QS1000-128IL

LA15QS1200-128

LA15QS1200-128IL

LA15QS1500-128

LA15QS1500-128IL

LA15QS2000-128

LA15QS2000-128IL

LA15QS2500-128

LA15QS2500-128IL

LA15QS3000-128

LA15QS3000-128IL

LA15QS3500-128

LA15QS4000-128

LA15QS4000-128IL

LA15QS5000-128

LA15QS6000-128

4TI

4

4IL

4TI

4

4TI

4

4IL

4TI

4

4IL

4

4IL

4

4IL

4

4IL

4TI

128

128IL

128

128IL

128

128IL

128

128IL

128

128IL

128

128IL

128

128IL

128

15

22

32

40

50

90

130

290

520

10

12

15

20

25

30

35

40

45

50

55

60

70

80

90

100

130

150

200

250

LA15QS10-2

LA15QS12-2

LA15QS15-2

LA15QS20-2

LA15QS25-2

LA15QS30-2

LA15QS35-1

LA15QS40-1

LA15QS40-4TI

LA15QS45-1

LA15QS50-1

LA15QS50-4

LA15QS55-1

LA15QS60-1

LA15QS70-4

LA15QS70-4TI

LA15QS80-4

LA15QS80-4TI

LA15QS90-4

LA15QS100-4

LA15QS100-4TI

LA15QS130-4

LA15QS130-4TI

LA15QS150-4

LA15QS150-4IL

LA15QS150-4TI

LA15QS200-4

LA15QS200-4IL

LA15QS250-4

0.25

0.21

0.28

0.39

0.34

0.47

0.64

Contact Factory

0.94

2

10

3.1

12

13

520

540

680

4

Contact Factory

14

5.6

8

9

10

14

16

22

2

2.5

3.1

3.6

5.3

6.8

9

15

1200

1900

3200

4800

6500

8500

Contact Factory

270

Contact Factory

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Dimensions

Dimensions for reference only.

Mount.

Type

Fig.

No.

Dimensions in Inches (mm in parentheses)

Amperes

Tap

A

B

C

–

D

–

E

–

F

–

G

H

1 – 30

2

1

1.50 (38.1)

2.00 (50.8)

2.66 (67.6)

3.50 (88.9)

1.88 (47.9)

2.38 (60.5)

0.41 (10.4)

0.81 (20.6)

1.13 (28.7)

1.50 (38.1)

2.00 (50.8)

3.00 (76.2)

3.50 (88.9)

5.75 (146)

–

35 – 60

1

–

70 – 450

4, 4TI*, 4IL*

128, 128IL*

128

2, 3*

4, 5*

6, 7*

8

1.16 (29.5)

1.25 (31.8)

1.63 (41.4)

1.88 (47.7)

2.19 (55.6)

2.56 (65.0)

1.75 (44.5)

2.50 (63.5)

3.00 (76.2)

5.00 (127)

1.91 (48.5)

1.94 (49.3)

1.00 (25.4)

1.50 (38.1)

1.06 (27.0)

1.50 (38.1)

0.31 (7.9)

0.41 (10.4)

–

0.88 (22.4)

0.19 (4.8)

500 – 1000

750 – 2000

2500 – 3000

3500 – 4000

5000 – 6000

1.00 (25.4)

0.25 (6.4)

3

1

–

⁄

8

-24-¹⁄

-20-¹⁄

2

deep

–

⁄

2

1

1.06 (27.0)

1.50 (38.1)

⁄

1

⁄

* Optional Trigger Actuator (IL)

w w w . l i t t e l f u s e . c o m

89

•

Special Purpose Fuses

LA30QS Semiconductor Fuses

300 VAC • Very Fast Acting • 35 – 4500 Amperes

Littelfuse LA30QS series Semiconductor protection fuses are intended

for the protection of Power Semiconductors such as diodes, phase

control SCR’s and other power semiconductor devices. The LA30QS is

recommended for new applications providing solutions for your critical

protection needs for 300V and less semiconductors.

Features

• Low I²t minimizes damage to protected components on short-circuit.

• Controlled arc voltage reduces stress to circuit components during

fuse clearing.

• Choice of mounting types provides options for unique termination

requirements.

• Indicator options allow identification of blown fuses.

• Superior DC capabilities.

Applications

Protection of 300 volt heavy duty rectifiers and similar heavy duty

power supplies.

Ordering Information

LA 30 QS 600 -4 TI

Littelfuse

Voltage

(300)

Style

Ampere Rating

Mounting Type

Ferrule

1

Blades/Bolt-in

Hockey Puck, bolt-in

4

128

Integral Blown-

Fuse Indicator

Trigger Indicator

Trigger Actuator

TI

IL

Note: Mounting types and integral blown fuse indicators are optional for

specified ratings.

Specifications

Voltage Rating:

AC: 300 volts

DC: 300 volts

Interrupting Rating:

Ampere Range:

Approvals:

200,000 Amperes

35 – 4500 Amperes

UL Recognized under the components program.

Contact Littelfuse for characteristic curves.

90

w w w . l i t t e l f u s e . c o m

•

Special Purpose Fuses

LA30QS Semiconductor Fuses

300 VAC • Very Fast Acting • 35 – 4500 Amperes

Catalog Numbers & Technical Data

Maximum

Clearing I²t

@300 VAC

(A²S x 10³)

Littelfuse

Catalog

Number

Watts Loss

@ Rated

Current (W)

Littelfuse

Catalog

Number

Watts Loss

@ Rated

Current (W)

Ampere

Rating

Mounting

Type

Clearing I²t

@300 VAC

(A²S x 10³)

Ampere

Rating

Mounting

Type

35

40

50

60

70

80

90

LA30QS35-4

LA30QS40-4

LA30QS50-4

LA30QS60-4

LA30QS70-4

LA30QS80-4

LA30QS90-4

4

4TI

4

4TI

4

4TI

4

4TI

4

4TI

4

0.9

1.2

2

6.4

7

9.9

11.6

11

500

550

600

700

800

LA30QS500-4

LA30QS550-4

LA30QS600-4

LA30QS600-4TI

LA30QS600-4IL

LA30QS700-4

LA30QS700-128

LA30QS800-4

LA30QS800-4IL

LA30QS800-128

LA30QS1000-128

LA30QS1000-128IL

LA30QS1200-128

LA30QS1500-128

LA30QS1500-128IL

LA30QS1600-128

LA30QS2000-128

LA30QS2000-128IL

LA30QS2500-128

LA30QS2500-128IL

LA30QS3000-128

LA30QS3500-128

LA30QS3500-128IL

LA30QS4000-128

LA30QS4500-128

4

4TI

4IL

4

128

4

160

190

230

260

330

460

880

1400

1690

2600

4000

4700

6500

8600

11000

59

65

69

90

73

108

84

105

110

140

150

190

230

340

380

450

500

2.7

1.6

2.6

3.2

4.1

6.3

9.3

10

15

22

25

37

62

11

13

16

19

27

30

33

41

47

49

56

53

100

125

130

150

175

200

225

250

300

350

400

450

LA30QS100-4

LA30QS100-4TI

LA30QS125-4

LA30QS130-4

LA30QS150-4

LA30QS150-4TI

LA30QS175-4

LA30QS200-4

LA30QS200-4TI

LA30QS225-4

LA30QS250-4

LA30QS250-4TI

LA30QS300-4

LA30QS300-4TI

LA30QS350-4

LA30QS400-4

LA30QS400-4IL

LA30QS400-4TI

LA30QS450-4

4IL

800

128

128IL

128

128IL

128

128IL

128

128IL

128

128IL

128

1000

1200

1500

1600

2000

2500

3000

3500

4000

4500

4

83

130

4IL

4TI

4

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

TAP

F

1.17

E

[

29.8 mm ]

D

C

A

0.50

12.8 mm ]

B

[

Dimensions

Dimensions for reference only.

Dimensions in Inches (mm in parentheses)

Amperes

Mount. Type

Fig. No.

Tap

A

B

C

D

E

F

G

H

35 – 60

70 – 200

225 – 700

700 – 1200

1500 – 2500

3000 – 4500

4

1

2

2, 3*

4

5, 6*

3.19 (81.0) 0.81 (20.6) 1.63 (41.4) 2.50 (63.5) 2.25 (57.5) 0.34 (8.6) 0.72 (18.3) 0.13 (3.3)

3.13 (79.5) 1.22 (31.0) 1.63 (41.4) 2.44 (62.0) 2.31 (58.7) 0.31 (7.9) 1.00 (25.4) 0.19 (4.8)

3.84 (97.5) 1.50 (38.1) 1.59 (40.1) 2.91 (73.9) 2.28 (57.9) 0.41 (10.4) 1.00 (25.4) 0.25 (6.4)

–

4, 4IL*

128

128, 128IL*

3

1

8

2

2.59 (65.8) 3.00 (76.2) 2.34 (59.4) 2.50 (63.5) 1.50 (38.1)

–

⁄ -24- ⁄ deep

1

8

2

2.59 (65.8) 3.50 (88.9) 2.34 (59.4) 3.00 (76.2) 1.50 (38.1) 1.50 (38.1)

2.59 (65.8) 4.50 (114) 2.34 (59.4) 3.75 (95.3) 1.50 (38.1) 1.50 (38.1)

⁄ -24- ⁄ deep

1

2

⁄ -20- ⁄ deep

* Optional Actuator (IL)

w w w . l i t t e l f u s e . c o m

91

•

Special Purpose Fuses

LA50QS Semiconductor Fuses

500 VAC • Very Fast Acting • 35 – 1200 Amperes

In response to new equipment requirements, Littelfuse LA50QS

series fuses were developed to improve the overall performance

of semiconductor fuses. The LA50QS provides the best protection

features including lower I²t, longer life when subjected to cyclic loading

and lower watts loss. LA50QS is today’s choice for the protection of

dynamic solid state equipment.

Features

Lowest I²t for greatest protection of semiconductor circuits.

Low watts loss for cooler operation.

Superior cycling ability gives an equipment design advantage.

State-of-the-art protection for 500 volt equipment.

Ultra compact sizes allow down-sizing of existing equipment.

•

Applications

Protection of 500 volts or less solid state equipment such as motor

drives, UPS, inverters, etc.

Ordering Information

LA 50 QS 250 -4

Littelfuse

Voltage

(500)

Style

Ampere Rating

Mounting Type

(Blades/Bolt-in)

Specifications

Voltage Rating:

AC: 500 volts

DC: 500 volts

Interrupting Rating:

AC: 200,000 Amperes

DC: 100,000 Amperes

35 – 1200 Amperes

UL Recognized under the components program

CSA Certified.

Ampere Range:

Approvals:

92

w w w . l i t t e l f u s e . c o m

•

Special Purpose Fuses

LA50QS Semiconductor Fuses

500 VAC • Very Fast Acting • 35 – 1200 Amperes

Catalog Numbers & Technical Data

Littelfuse

Catalog

Number

Maximum

Watts Loss

@ Rated

Current (W)

Littelfuse

Catalog

Number

Maximum

Watts Loss

@ Rated

Current (W)

Ampere

Rating

Mounting

Type

Ampere

Rating

Mounting

Type

Clearing I²t @500

VAC (A²S x 10³)

Clearing I²t @500

VAC (A²S x 10³)

35

40

50

60

70

LA50QS35-4

LA50QS40-4

LA50QS50-4

LA50QS60-4

LA50QS70-4

LA50QS80-4

LA50QS90-4

LA50QS100-4

LA50QS125-4

LA50QS150-4

LA50QS175-4

LA50QS200-4

LA50QS225-4

4

0.56

0.69

1.1

1.8

1.9

2.6

3.6

4.4

5.6

9

6

7

8

250

300

350

400

450

500

600

700

800

900

1000

1200

LA50QS250-4

LA50QS300-4

LA50QS350-4

LA50QS400-4

LA50QS450-4

LA50QS500-4

LA50QS600-4

LA50QS700-4

LA50QS800-4

LA50QS900-4

LA50QS1000-4

LA50QS1200-4

4

29

55

88

41

49

57

65

69

10

12

14

15

17

21

25

29

33

37

98

130

160

220

270

360

500

560

930

80

90

77

92

100

125

150

175

200

225

110

130

140

160

175

15

20

25

Dimensions

Dimensions for reference only.

Dimensions in Inches (mm in parentheses)

Mount.

Type

Amperes

A

B

C

D

E

F

G

H

3.63

(92.2)

3.63

(92.2)

4.34

(110)

4.47

(114)

6.47

(164.3)

1.00

(25.4)

1.22

(31.0)

1.50

(38.1)

2.00

(50.8)

2.50

(63.5)

3.00

(76.2)

2.13

(54.1)

2.13

(54.1)

2.09

(53.1)

2.22

(56.4)

2.22

(56.4)

3.22

(81.8)

2.94

(74.7)

2.94

(74.7)

3.41

(86.6)

3.53

(89.7)

5.00

(127.0)

5.47

(138.9)

2.75

(69.9)

2.81

(71.4)

2.78

(70.6)

2.91

(73.9)

3.44

(87.3)

4.47

(113.5)

0.31

(7.9)

0.31

(7.9)

0.41

(10.4)

0.41

(10.4)

0.53

(13.5)

0.75

(19.1)

1.00

(25.4)

1.00

(25.4)

1.50

(38.1)

1.50

(38.1)

2.38

(60.3)

0.13

(3.3)

0.19

(4.8)

0.25

(6.4)

0.25

(6.4)

35 – 100

125 – 200

225 – 400

450 – 600

700 – 800

900 – 1200

4

0.25

(6.4)

0.44

6.97

(177.0)

0.63

(15.9)

(11.1)

Contact Littelfuse for characteristic curves.

w w w . l i t t e l f u s e . c o m

93

•

Special Purpose Fuses

LA60Q Semiconductor Fuses

600 VAC • Very Fast Acting • 5 – 40 Amperes

Littelfuse LA60Q semiconductor protection fuses feature a 600 volt

1

13

2

32

AC/DC rating in a compact size (1 ⁄ ” x ⁄ ”). LA60Q also has the lowest

I²t of all similar fuses and excellent cycling ability. Applications include

inverters and small equipment requiring extremely fast response to

faults, without the need to carry sustained heavy overloads.

Features

Lowest I²t of any fuse this size for greater protection.

Excellent cycling ability gives advantage in equipment design.

•

Dimensions (in inches)

Ordering Information

LA 60 Q 30 -2

Littelfuse

Voltage

(300)

Style

Ampere Rating

Catalog Numbers & Technical Data

Littelfuse

Catalog

Number

Maximum

Clearing I²t @600

VAC (A²S)

Ampere

Rating

Mounting

Type

Watts Loss @

Rated Current (W)

Mounting Type

Ferrule, midget dim. 1-½” x ¹³/32”

5

8

LA60Q5-2

LA60Q8-2

LA60Q10-2

LA60Q12-2

LA60Q15-2

LA60Q20-2

LA60Q25-2

LA60Q30-2

LA60Q35-2

LA60Q40-2

2

60

70

110

150

180

330

440

860

1300

1800

0.7

1.1

1.6

2

10

12

15

20

25

30

35

40

Specifications

3

Voltage Rating:

AC: 600 volts

4.4

5.5

5.6

6.4

7

DC: 600 volts

Interrupting Rating:

AC: 200,000 Amperes

DC: 100,000 Amperes

5 – 40 Amperes

Ampere Range:

Approvals:

UL Recognized under the components program.

Recommended Fuse Blocks

LPSM or L60030M

Contact Littelfuse for characteristic curves.

94

w w w . l i t t e l f u s e . c o m

•

Special Purpose Fuses

LA60X Semiconductor Fuses

600 VAC • Very Fast Acting • 700 – 2000 Amperes

Littelfuse LA60X semiconductor protection fuses are popular for the

protection of higher voltage heavy rectifiers such as traction rectifiers.

They can carry long sustained overloads common with heavy-duty

apparatus. The compact “hockey puck” design provides high power

protection in a small space.

Features

Lowest I²t minimizes damage to protected components on

•

short- circuit.

•

Controlled arc voltage reduces stress to circuit components during

fuse clearing.

Applications

Protection of heavy traction and electrochemical as well as rectifiers and

other heavy-duty equipment.

Ordering Information

LA 60 X 700 -128

Littelfuse

Voltage

Figure 1

Figure 2

(300)

Style

Ampere Rating

Mounting Type

Hockey Puck, bolt-in

Dimensions

Dimensions for reference only.

Dimensions in Inches (mm in parentheses)

Tap

Mount.

Type

Fig.

No.

Amperes

A

B

C

D

E

F

4.00

(102)

4.00

(102)

4.00

(102)

3.00

(76.2)

3.50

(88.9)

4.50

(114)

3.75

(95.3)

3.75

(95.3)

3.75

(95.3)

2.50

(63.5)

3.00

(76.2)

3.75

(95.3)

1.50

(38.1)

1.50

(38.1)

1.50

(38.1)

3

1

2

8

700 – 800

1000 – 1200

1500 – 2000

128

1

2

-

⁄ -24- ⁄ deep

1.50

(38.1)

1.50

(38.1)

1

8

2

⁄ -24- ⁄ deep

1

2

⁄ -20- ⁄ deep

Specifications

Voltage Rating:

Interrupting Rating:

Ampere Range:

Approvals:

AC: 600 volts

AC: 100,000 Amperes

700 – 2000 Amperes

UL Recognized under the components program.

Ampere Ratings

700

800

1200

1500

1600

1800

2000

1000

Contact Littelfuse for technical information.

w w w . l i t t e l f u s e . c o m

95

•

Special Purpose Fuses

LA70QS Semiconductor Fuses

700 VAC • Very Fast Acting • 35 – 800 Amperes

Littelfuse LA70QS semiconductor fuses were developed to provide

improved performance required by today’s new equipment. The

LA70QS features lower I²t, improved cycling, and lower watts loss. It is

the best choice for the protection of dynamic solid-state equipment.

Features

Very low I²t improved protection of equipment.

Superior cycling ability for long, reliable life on high cycling loading.

Lower watts loss for cooler operation.

700 Volt AC/DC rating provides greater design versatility.

Compact sizes allow downsizing of equipment.

•

Applications

Protection of 700 volt or less solid state equipment such as motor

drives, UPS, inverters, etc.

Ordering Information

LA 70 QS 150 -4

Littelfuse

Voltage

(300)

Style

Ampere Rating

Mounting Type

Blades/Bolt-in

Specifications

Voltage Rating:

AC: 700 Volts

DC: 700 Volts

Interrupting Rating:

AC: 200,000 Amperes

DC: 100,000 Amperes

35 – 800 Amperes

UL Recognized under the components program.

CSA Certified.

Ampere Range:

Approvals:

96

w w w . l i t t e l f u s e . c o m

•

Special Purpose Fuses

LA70QS Semiconductor Fuses

700 VAC • Very Fast Acting • 35 – 800 Amperes

Catalog Numbers & Technical Data

Littelfuse

Catalog

Number

Maximum

Ampere

Rating

Mounting

Type

Watts Loss @

Rated Current (W)

Ampere

Littelfuse

Mounting

Watts Loss @

Rated Current (W)

Clearing I²t @700

VAC (A²S x 10³)

Clearing I²t @700

VAC (A²S x 10³)

Rating Catalog Number Type

35

40

50

60

70

LA70QS35-4

LA70QS40-4

LA70QS50-4

LA70QS60-4

LA70QS70-4

LA70QS80-4

LA70QS90-4

LA70QS100-4

LA70QS125-4

LA70QS125-4K

LA70QS150-4

LA70QS150-4K

LA70QS175-4

LA70QS175-4K

4

4K

4

4K

4

0.47

0.58

0.88

1.2

1.8

2.3

3

3.6

6.9

11

6.2

7.5

9.8

12

200

250

300

350

400

450

500

600

700

800

LA70QS200-4

LA70QS200-4K

LA70QS250-4

LA70QS300-4

LA70QS350-4

LA70QS400-4

LA70QS450-4

LA70QS450-4K

LA70QS500-4

LA70QS500-4K

LA70QS600-4

LA70QS600-4K

LA70QS700-4

LA70QS800-4

4

4K

4

4K

4

19

42

55

72

41

42

53

64

75

92

15

16

20

24

22

28

29

35

80

90

99

125

150

160

222

332

433

100

125

150

175

92

116

125

143

11

14

4K

4

4K

Dimensions

Dimensions for reference only.

Dimensions in Inches (mm in parentheses)

Amperes

Mount. Type

A

B

C

D

E

F

G

H

4.38

(111)

4.38

(111)

5.09

(129)

5.09

(129)

5.09

(129)

7.09

(180)

1.00

(25.4)

1.22

(31.0)

1.22

(31.0)

1.50

(38.1)

2.00

(50.8)

2.00

(50.8)

2.50

(63.5)

2.88

(73)

2.88

(73)

2.88

(73)

2.84

(72.2)

2.84

(72.2)

2.84

3.69

(93.6)

3.69

(93.6)

4.19

(106)

4.16

(106)

4.16

(106)

6.16

(156)

5.28

(134)

3.50

(88.9)

3.56

(90.5)

3.50

(88)

3.53

(89.7)

3.53

(89.7)

3.53

(89.7)

4.91

(125)

0.31

(7.9)

0.31

(7.9)

0.41

(10.3)

0.40

(10.3)

0.41

(10.3)

0.75

(19.0)

1.00

(25.4)

1.00

(25.4)

1.50

(38.1)

1.50

(38.1)

1.50

(38.1)

2.00

(50.8)

0.13

(3.2)

0.19

(4.8)

0.19

(4.8)

0.25

(6.4)

0.25

(6.4)

0.25

(6.4)

0.38

(9.5)

35 – 100

125 – 200

225 – 400

450 – 600

700 – 800

4

4K

4

0.53

(13.5)

0.53

(13.5)

4K

4

(72.2)

2.84

(72.2)

7.09

(180)

Contact Littelfuse for characteristic curves.

w w w . l i t t e l f u s e . c o m

97

•

Special Purpose Fuses

LA70QS French Cylindrical Fuses

690 Volts • Very Fast Acting • 10 – 100 Amperes

Ordering Information

LA 70 QS 20 -14F I

Littelfuse

Voltage

(700)

Style

Ampere Rating

Size

14 x 51mm

22 x 58mm

14F

22F

Optional Striker

(I)

B

C

A

Littelfuse French Cylindrical style semiconductor fuses are an extension

to the LA70QS series. They offer a solid-fill design with high interrupting

ratings and an optional striker for visual or remote blown fuse indication.

The international 14x51mm and 22x58mm sizes are accepted

worldwide.

B

C

D

E

A

Catalog Numbers & Technical Data

Dimensions in mm

Littelfuse

Catalog

Number

Littelfuse

Catalog

Number

Maximum

Fuse Size

Watts Loss

@ Rated

Current (W)

Ampere

Rating

Body Clearing I²t

Size

A

B

C

D

–

E

–

@700 VAC

14x51 (no striker)

22x58 (no striker)

14

22

14

22

51

58

51

58

14

16

14

16

(No Striker) (With Striker)

(A²S x 10³)

–

10

12

LA70QS10-14F LA70QS10-14FI 14x51

LA70QS12-14F LA70QS12-14FI 14x51

LA70QS16-14F LA70QS16-14FI 14x51

LA70QS20-14F LA70QS20-14FI 14x51

LA70QS25-14F LA70QS25-14FI 14x51

LA70QS32-14F LA70QS32-14FI 14x51

LA70QS40-14F LA70QS40-14FI 14x51

LA70QS50-14F LA70QS50-14FI 14x51

LA70QS20-22F LA70QS20-22FI 22x58

LA70QS25-22F LA70QS25-22FI 22x58

LA70QS32-22F LA70QS32-22FI 22x58

LA70QS40-22F LA70QS40-22FI 22x58

LA70QS50-22F LA70QS50-22FI 22x58

LA70QS63-22F LA70QS63-22FI 22x58

LA70QS80-22F LA70QS80-22FI 22x58

LA70QS100-22F LA70QS100-22FI 22x58

0.04

0.06

0.10

0.16

0.27

1.50

0.70

1.50

0.076

0.125

0.27

0.48

0.80

1.85

3.80

8.00

3.5

4.4

14x51 (with striker)

22x58 (with striker)

Dimensions for reference only.

7.5

3.8

16

20

25

32

40

50

20

25

32

40

50

63

80

100

4.8

5.2

Specifications

Voltage Rating:

5.8

7.0

AC: 690 Volts

DC: 700 Volts

10.7

11.6

8.0

Interrupting Rating:

AC: 200,000 Amperes

DC: 100,000 Amperes

10 – 100 Amperes

UL Recognized under the components program.

CSA Certified.

10.0

11.0

13.0

14.9

16.0

17.8

19.0

Ampere Range:

Approvals:

Recommended Fuse Blocks

CYH series for non-striker fuses LA70QS(amp)22F

LPSG series for the striker style LA70QS(amp)22FI

98

w w w . l i t t e l f u s e . c o m

•

Special Purpose Fuses

LA100P Semiconductor Fuses

1000 VAC • Very Fast Acting • 15 – 1000 Amperes

Littelfuse LA100P semiconductor protection fuses are rated 1000V,

extending the range of protection for UPS systems, AC and DC drives,

reduced voltage motor starters and similar applications where lower I²t

and superior reliability are needed. With ratings from 15-1000 amperes,

a wide range of high voltage applications can be served.

Features

Low I²t minimizes damage to protected components on short-circuit.

Controlled arc voltage reduces stress to circuit components during

fuse clearing.

•

Applications

Protection of UPS systems, AC/DC drives, reduced voltage motor

starters and other 1000V or less semiconductor devices.

Ordering Information

LA 100 P 80 -4 TI

Littelfuse

Voltage

(1000)

Style

Ampere Rating

Mounting Type

Ferrule

Blades/Bolt-in

1

4

Integral Blown-

Fuse Indicator

Trigger Indicator

TI

Note: Mounting types and integral blown fuse indicators are optional for

specified ratings.

Specifications

Voltage Rating:

AC: 1000 Volts

DC: 750 Volts

Interrupting Rating:

Ampere Range:

Approvals:

100,000 Amperes

15 – 1000 Amperes

UL Recognized under the components program.

w w w . l i t t e l f u s e . c o m

99

•

Special Purpose Fuses

LA100P Semiconductor Fuses

1000 VAC • Very Fast Acting • 15 – 1000 Amperes

Catalog Numbers & Technical Data

Littelfuse

Catalog

Number

Maximum

Littelfuse

Catalog

Number

Maximum

Ampere

Rating

Mounting

Type

Watts Loss @

Rated Current (W)

Ampere

Rating

Mounting

Type

Watts Loss @

Rated Current (W)

Clearing I²t @1000

VAC (A²S x 10³)

15

20

25

30

35

40

50

60

70

80

100

125

150

LA100P15-1

LA100P20-1

LA100P25-1

LA100P30-1

LA100P35-4

LA100P40-4

LA100P50-4

LA100P50-4TI

LA100P60-4

LA100P60-4TI

LA100P70-4TI

LA100P80-4

LA100P80-4TI

LA100P100-4

LA100P100-4TI

LA100P125-4

LA100P125-4TI

LA100P150-4

LA100P150-4TI

1

4

0.6

0.8

1,3

1.5

2.2

2.9

4.5

6.5

8.8

12

18

28

41

3.4

5.9

9

12.8

7.3

8.3

11

200

225

250

300

350

400

500

600

650

700

800

1000

LA100P200-4

LA100P200-4TI

LA100P225-4

LA100P250-4

LA100P300-4

LA100P300-4TI

LA100P350-4

LA100P350-4TI

LA100P400-4

LA100P400-4TI

LA100P500-4

LA100P500-4TI

LA100P600-4

LA100P600-4TI

LA100P650-4

LA100P700-4

LA100P800-4

LA100P800-4TI

LA100P1000-4

4

4TI

4

4TI

4

4TI

4

4TI

4

4TI

4

4TI

4

4TI

4

72

91

36

40

46

55

65

70

90

110

120

125

140

190

110

160

220

290

450

650

780

880

1200

1900

4

4TI

4

4TI

4

4TI

4

4TI

4

11

13

14

18

23

28

4TI

4

4TI

Figure 1

Figure 2

Figure 3

Figure 4

Dimensions

Dimensions for reference only.

Dimensions in Inches (mm in parentheses)

Amperes

Mount. Type

Fig. No.

A

B

C

D

E

F

G

H

J

2.53

(66.8)

5.00

(127)

5.00

(127)

5.72

(145)

5.72

(145)

7.72

(196)

0.56

(14.2)

1.00

(25.4)

1.22

(31)

2.00

(38.1)

2.00

(50.8)

2.50

(63.5)

2.88

(73.2)

3.50

(88.9)

–

15 – 30

35 – 60

1

2

3

4

3.50

(173)

3.50

(173)

3.47

(88.1)

3.47

(88.1)

3.47

(88.1)

4.31

(109)

4.31

(109)

4.78

(121)

4.78

(121)

5.88

(149)

5.94

(151)

4.19

(106)

4.19

(106)

4.16

(106)

4.16

(106)

0.31

(7.9)

0.31

(7.9)

0.41

(10.4)

0.41

(10.4)

0.53

(13.5)

0.75

(19.1)

1.00

(25.4)

1.00

(25.4)

1.50

(25.4)

2.00

(50.8)

2.00

(50.8)

2.75

(69.9)

0.13

(3.3)

0.19

(4.8)

0.25

(6.4)

0.25

(6.4)

0.38

(9.7)

0.38

(9.7)

0.50

(12.7)

–

4, 4TI

4

65 – 100

125 – 200

225 – 400

500 – 600

650 – 800

1000

5.56

(147)

7.44

(189)

8.22

(209)

3.94

(100)

4.47

(114)

0.63

(16)

0.63

(16)

0.31

(7.9)

1.38

–

6.59

(167)

5.84

(148)

(35.1)

Contact Littelfuse for characteristic curves.

100

w w w . l i t t e l f u s e . c o m

•

Special Purpose Fuses

LA120X Semiconductor Fuses

1200 VAC • Very Fast Acting • 1/2 – 30 Amperes

1

2

Littelfuse LA120X semiconductor protection fuses, rated / through

30A, 1200 VAC are popular for use in traction drive auxiliary circuits and

similar applications. LA120X fuses are also suitable for use on 1000VDC

auxiliary circuits with low time constants.

Features

•

1000 Volt DC rating for a wide range of circuits.

Compact size fits in where competitive sizes will not fit.

Applications

Protection of traction drive auxiliary circuits, etc.

Dimensions

In Inches (mm in parentheses)

4 5/8

(117)

.812

(20.6)

Ordering Information

LA 120 X 25 -1

Littelfuse

Voltage

(1200)

Style

Ampere Rating

Catalog Numbers & Technical Data

Ampere

Rating

Littelfuse Catalog

Number

Maximum Clearing I²t

Mounting Type

@1200 VAC (A²S)

Ferrule

1

2

⁄

LA120A1/2-1

LA120X1-1

LA120X2-1

LA120X3-1

LA120X4-1

LA120X5-1

LA120X6-1

LA120X10-1

LA120X15-1

LA120X20-1

LA120X25-1

LA120X30-1

1

1.9

7.5

30

1

2

3

4

5

69

Specifications

120

190

280

970

2100

3700

5700

8300

Voltage Rating:

AC: 1200 Volts

DC: 1000 Volts

6

10

15

20

25

30

Interrupting Rating:

Ampere Range:

100,000 Amperes

1

2

⁄ – 30 Amperes

Note: Mounting type 1 can use 109002 and 129002 clips.

w w w . l i t t e l f u s e . c o m

101

•

Special Purpose Fuses

Square Body Semiconductor Fuses

700/1300 VAC • Very Fast Acting • 40 – 2500 Amperes

Littelfuse North American style square body semiconductor fuses

provide maximum flexibility in equipment design and ultimate protection

for today’s power conversion equipment. Available in different body

sizes and multiple mounting styles, the broad range of ampere ratings

allows great flexibility in equipment design.

Engineered to provide state-of-the-art protection for SCR’s, diodes,

thyristors, GTO’s, and IGBT devices, Littelfuse square body fuses have

pure die-cut elements embedded in solidified sand to control arcing and

lower I²t. All fuses are also equipped with a blown fuse trip indicator.

Features

•

Choice of mounting styles provides a wide choice for equipment

design.

•

Broad range of ampere ratings in a given body size for design

flexibility.

Very low I²t minimizes damage to protected components.

Superior cycling ability for long, reliable life on high cyclic loading.

Extremely fast acting and current-limiting for improved protection to

equipment.

•

Applications

Ordering Information

Protection of rectifiers, inverters, DC drives, UPS systems, reduced

voltage motor starters, and other equipment in globally accepted

applications.

LA 070 URD 31 LI 350

Specifications

Littelfuse

Voltage Rating:

AC: 700 Volts (LA070)

1300 Volts (LA130)

DC: Contact factory

AC: 200,000 Amperes (LA070)

100,000 Amperes (LA130)

DC: Contact factory

Voltage

(070=700V

130=1300V)

Interrupting Rating:

Class

Ampere Range:

Approvals:

40 – 2500 Amperes

UL Recognized Component

Size

700V 1300V

30

31

32

33

70

71

72

73

Mounting Type

Straight-blade

KI

LI

LLI

Straight-blade

Flat-type, one hole

TTI TTI

Amp Rating

102

w w w . l i t t e l f u s e . c o m

•

Special Purpose Fuses

Square Body Semiconductor Fuses

700/1300 VAC • Very Fast-Acting • 40 – 2500 Amperes

700 Volt North American Style Ratings and Application Data

Total I²t

@ Rated

Voltage

**Watts

Loss @ Rated

Current

Long Blade

Catalog No.

Type LI

Short Blade

Catalog No.

Type KI

Tapped Terminal

Catalog No.

Type TTI

Amp

Rating

Rated

Voltage

Melting I²t

(A²S x 10³)

Body Size

(A²S x 10³)

(W)

63

80

100

125

160

200

250

315

350

400

450

500

550

200

250

315

350

400

450

500

550

630

700

800

400

450

500

550

630

700

800

900

1000

1100

1250

1400

1600

1800

500

550

630

700

800

900

1000

1100

1250

1400

1600

1800

2000

2250

2500

700

650

600

550

500

700

650

600

550

500

0.2

0.33

0.47

0.85

1.6

3

5.8

12

15.5

23

1.2

1.9

2.7

4.9

9.2

16.7

32.4

67

14

19

26

30

LA070URD30LI0063

LA070URD30LI0080

LA070URD30LI0100

LA070URD30LI0125

LA070URD30LI0160

LA070URD30LI0200

LA070URD30LI0250

LA070URD30LI0315

LA070URD30LI0350

LA070URD30LI0400

LA070URD30LI0450

LA070URD30LI0500

LA070URD30LI0550

LA070URD31LI0200

LA070URD31LI0250

LA070URD31LI0315

LA070URD31LI0350

LA070URD31LI0400

LA070URD31LI0450

LA070URD31LI0500

LA070URD31LI0550

LA070URD31LI0630

LA070URD31LI0700

LA070URD31LI0800

LA070URD32LI0400

LA070URD32LI0450

LA070URD32LI0500

LA070URD32LI0550

LA070URD32LI0630

LA070URD32LI0700

LA070URD32LI0800

LA070URD32LI0900

LA070URD32LI1000

LA065URD32LI1100

LA060URD32LI1250

LA055URD32LI1400

LA055URD32LI1600

LA050URD32LI1800

LA070URD33LI0500

LA070URD33LI0550

LA070URD33LI0630

LA070URD33LI0700

LA070URD33LI0800

LA070URD33LI0900

LA070URD33LI1000

LA070URD33LI1100

LA070URD33LI1250

LA070URD33LI1400

LA065URD33LI1600

LA065URD33LI1800

LA060URD33LI2000

LA050URD33LI2250

LA050URD33LI2500

LA070URD30KI0063

LA070URD30KI0080

LA070URD30KI0100

LA070URD30KI0125

LA070URD30KI0160

LA070URD30KI0200

LA070URD30KI0250

LA070URD30KI0315

LA070URD30KI0350

LA070URD30KI0400

LA070URD30KI0450

LA070URD30KI0500

LA070URD30KI0550

LA070URD31KI0200

LA070URD31KI0250

LA070URD31KI0315

LA070URD31KI0350

LA070URD31KI0400

LA070URD31KI0450

LA070URD31KI0500

LA070URD31KI0550

LA070URD31KI0630

LA070URD31KI0700

LA070URD31KI0800

LA070URD32KI0400

LA070URD32KI0450

LA070URD32KI0500

LA070URD32KI0550

LA070URD32KI0630

LA070URD32KI0700

LA070URD32KI0800

LA070URD32KI0900

LA070URD32KI1000

–

LA070URD30TTI0063

LA070URD30TTI0080

LA070URD30TTI0100

LA070URD30TTI0125

LA070URD30TTI0160

LA070URD30TTI0200

LA070URD30TTI0250

LA070URD30TTI0315

LA070URD30TTI0350

LA070URD30TTI0400

LA070URD30TTI0450

LA070URD30TTI0500

LA070URD30TTI0550

LA070URD31TTI0200

LA070URD31TTI0250

LA070URD31TTI0315

LA070URD31TTI0350

LA070URD31TTI0400

LA070URD31TTI0450

LA070URD31TTI0500

LA070URD31TTI0550

LA070URD31TTI0630

LA070URD31TTI0700

LA070URD31TTI0800

LA070URD32TTI0400

LA070URD32TTI0450

LA070URD32TTI0500

LA070URD32TTI0550

LA070URD32TTI0630

LA070URD32TTI0700

LA070URD32TTI0800

LA070URD32TTI0900

LA070URD32TTI1000

LA065URD32TTI1100

LA060URD32TTI1250

LA055URD32TTI1400

LA055URD32TTI1600

LA050URD32TTI1800

LA070URD33TTI0500

LA070URD33TTI0550

LA070URD33TTI0630

LA070URD33TTI0700

LA070URD33TTI0800

LA070URD33TTI0900

LA070URD33TTI1000

LA070URD33TTI1100

LA070URD33TTI1250

LA070URD33TTI1400

LA065URD33TTI1600

LA065URD33TTI1800

LA060URD33TTI2000

LA055URD33TTI2250

LA050URD33TTI2500

37

42 ⁄ 43

48 ⁄ 50

53 ⁄ 55

57 ⁄ 60

60 ⁄ 65

80 ⁄ 88

80 ⁄ 90

45

52

65

67

68

30

86

130

165

264

330

14.6

27

43

59

110

150

210

300

421

530

880

86

124

157

211

302

432

648

972

1350

1620

2100

2600

4000

4400

108

151

227

324

529

760

970

1360

2000

2700

3250

4330

5000

5900

7600

26

41

52

2.5

4.7

7.5

10.5

19

26.5

37

52

75

95

140

15

22

28

37

54

76

115

170

240

270

410

555

870

1050

19

31

70

70 ⁄ 72

70 ⁄ 75

75 ⁄ 85

85 ⁄ 95

105 ⁄ 120

72 ⁄ 75

77 ⁄ 80

85 ⁄ 90

90 ⁄ 95

95 ⁄ 105

100 ⁄ 110

110 ⁄ 120

110 ⁄ 125

115 ⁄ 135

140 ⁄ 165

150 ⁄ 180

160 ⁄ 190

165 ⁄ 195

195 ⁄ 330

105

105 ⁄ 110

110 ⁄ 120

115 ⁄ 125

120 ⁄ 130

120 ⁄ 135

135 ⁄ 155

135 ⁄ 160

150 ⁄ 180

160 ⁄ 200

210 ⁄ 240

225 ⁄ 260

250 ⁄ 290

280 ⁄ 330

32

–

LA070URD33KI0500

LA070URD33KI0550

LA070URD33KI0630

LA070URD33KI0700

LA070URD33KI0800

LA070URD33KI0900

LA070URD33KI1000

LA070URD33KI1100

LA070URD33KI1250

LA070URD33KI1400

–

27

40

55

95

135

170

240

350

480

555

720

950

1250

1870

33

–

** Watts loss data is published for both blade and tapped style mounting configurations.

When two watts loss values are shown, this represents tapped/blade values respectively.

Contact Littelfuse for characteristic curves.

w w w . l i t t e l f u s e . c o m

103

•

Special Purpose Fuses

Square Body Semiconductor Fuses

700/1300 VAC • Very Fast Acting • 40 – 2500 Amperes

North American Straight Blade, Type KI

TYPES KI AND LI

Dimensions - 700V Fuses

Dimensions for reference only.

Dimensions in Inches (mm in parentheses)

Catalog Number

A

B

C

D

E

F

G

H

J

1.57

(40)

2.01

(51)

2.36

(60)

2.93

0.98

(25)

0.98

(25)

1.26

(32)

1.57

(40)

0.49

(12.5)

0.49

0.83

(21)

1.0

0.71

(18)

0.89

2.68

(68)

2.66

4.21

(107)

4.22

5.08

(129)

5.07

0.41

(10.5)

0.56

J

B

LA070URD30KI (63-550)

LA070URD31KI (200-800)

LA070URD32KI (400-1000)

LA070URD33KI (500-1400)

C

(12.5) (25.5) (22.5) (67.6) (107.1) (128.8) (14.3)

0.63

(16)

0.79

(20)

1.925 MAX

[47.6]

1.18

(30)

1.46

1.06

(27)

1.35

2.92

(74.2)

2.97

4.29

(109)

4.24

5.28

(134)

5.28

0.57

(14.6)

0.63

(15.9)

F

G

H

(74.5)

(37.2) (34.2) (75.4) (107.6) (134)

A

North American Straight Blade Types LI

D

.24

[6]

E

Dimensions - 700V Fuses

Dimensions for reference only.

A

Dimensions in Inches (mm in parentheses)

Catalog Number

A

B

C

D

E

F

G

H

J

1.57

(40)

2.01

(51)

0.98

(25)

0.98

(25)

0.49

(12.5)

0.49

0.83

(21)

1.0

0.71

(18)

0.89

3.45

4.98

5.85

0.41

LA070URD30LI (63-550)

LA070URD31LI (200-800)

(87.6) (126.6) (148.6) (10.5)

3.61 4.82 5.85 0.57

(12.5) (25.5) (22.5) (91.6) (122.4) (148.6) (14.6)

LA070URD32LI (400-1000)

LA065URD32LI (1250)

LA055URD32LI (1400-1600)

LA050URD32LI (1800)

2.36

(60)

1.26

(32)

0.63

(16)

1.18

(30)

1.06

(27)

3.71

(94.2)

5.08

(129)

6.02

(153)

0.57

(14.6)

LA070URD33LI (500-1400)

LA065URD33LI (1600-1800)

LA060URD33LI (2000)

LA055URD33LI (2250)

2.93

(74.5)

1.57

(40)

0.79

(20)

1.46

1.35

3.72

4.98

6.02

0.63

(15.9)

TYPE TTI

(37.2) (34.2) (94.4) (126.6) (153)

C

LA050URD33LI (2500)

.26

[6.7]

North American Flat Single Hole, Type TTI

B

A

Dimensions - 700V Fuses

Dimensions for reference only.)

Dimensions in Inches (mm in parentheses)

Catalog Number

A

B

C

1.57

(40)

2.00

1.00

(25)

1.19

5

16

LA070URD30TTI (100-550)

LA070URD31TTI (200-800)

⁄ -18 x 0.35

5

16

⁄ -18 x 0.35

(50.8)

(30.2)

LA070URD32TTI (400-1000)

LA065URD32TTI (1100)

LA060URD32TTI (1250)

2.37

(60.3)

1.50

(38.1)

3

8

⁄ -16 x 0.35

LA055URD32TTI (1400-1600)

LA060URD33TTI (1800)

LA070URD33TTI (500-1400)

LA065URD33TTI (1600)

LA060URD33TTI (2000)

LA055URD33TTI (2250)

LA050URD33TTI (2500)

2.94

(74.5)

1.81

(46)

1

1.93 MAX

[49]

2

⁄ -18 x 0.35

2

[50.6]

104

w w w . l i t t e l f u s e . c o m

•

Special Purpose Fuses

Square Body Semiconductor Fuses

700/1300 VAC • Very Fast Acting • 40 – 2500 Amperes

1300 Volt North American Style Ratings and Application Data

Total I²t @

Body

Size

Melting I²t

(A²S x 10³)

**Watts Loss @

Rated Current (W)

Long Blade

Catalog No. Type LI/LLI

Tapped Terminal

Catalog No. Type TTI

Amp Rating Rated Voltage

Rated Voltage

(A²S x 10³)

63

80

1300

1200

1300

1200

1100

1200

1300

1200

1300

1100

1200

1100

1200

1300

1200

1300

1100

1300

1100

1000

900

0.21

0.47

0.83

1.3

2.5

4.7

9.6

20

1.8

4

7.2

11

22

40

82

172

205

22

26

27

30

38

45

54 ⁄ 56

58 ⁄ 61

66 ⁄ 72

68 ⁄ 75

46

LA130URD70LI0063

LA130URD70LI0080

LA130URD70LI0100

LA130URD70LI0125

LA130URD70LI0160

LA130URD70LI0200

LA130URD70LI0250

LA130URD70LI0315

LA120URD70LI0350

LA130URD71IL0160

LA130URD71LLI0200

LA130URD71LLI0250

LA130URD71IL0280

LA130URD71LLI0315

LA130URD71LLI0350

LA130URD71LLI0400

LA130URD71LLI0450

LA120URD71LLI0500

LA120URD71LLI0550

LA110URD71LLI0630

–

LA130URD72LI0280

LA130URD72LI0315

LA130URD72LI0350

LA130URD72LI0400

LA130URD72LI0450

LA130URD72LI0500

LA130URD72LI0550

LA120URD72LI0630

–

LA130URD70TTI0063

LA130URD70TTI0080

LA130URD70TTI0100

LA130URD70TTI0125

LA130URD70TTI0160

LA130URD70TTI0200

LA130URD70TTI0250

LA130URD70TTI0315

LA120URD70TTI0350

LA130URDT1TTI0160

LA130URD71TTI0200

LA130URD71TTI0250

LA130URD71TTI0280

LA130URD71TTI0315

LA130URD71TTI0350

LA130URD71TTI0400

LA130URD71TTI0450

LA120URD71TTI0500

LA120URD71TTI0550

–

LA120URD71TTI0630

LA130URD72TTI0280

LA130URD72TTI0315

LA130URD72TTI0350

LA130URD72TTI0400

LA130URD72TTI0450

LA130URD72TTI0500

LA130URD72TTI0550

–

100

125

160

200

250

315

350

160

200

250

280

315

350

400

450

500

550

630

280

315

350

400

450

500

550

630

700

800

315

350

400

450

500

550

630

700

800

900

1000

1100

1250

1400

1600

1800

70

28

2.6

4.7

8.9

12

16

22

38

47

68

84

125

10

15

21

32

44

57

68

105

145

215

12

17

25

35

44

40

76

54

61

102

138

190

330

405

500

620

930

90

68 ⁄ 70

73 ⁄ 76

76 ⁄ 80

87 ⁄ 95

90 ⁄ 100

98 ⁄ 112

105

120

72

76

77

71

130

180

285

380

500

590

920

1040

1590

102

150

220

310

390

500

730

960

1630

2160

2430

2580

3480

3880

5630

7600

80

87 ⁄ 89

94 ⁄ 98

110 ⁄ 120

113

125

122

140

125

146

84

72

LA130URD72TTI0630

-

LA120URD72TTI0700

–

LA110URD72LI0700

–

LA110URD72LI0800

–

LA120URD72TTI0800

LA130URD73TTI0315

LA130URD73TTI0350

LA130URD73TTI0400

LA130URD73TTI0450

LA130URD73TTI0500

LA130URD73TTI0550

LA130URD73TTI0630

LA130URD73TTI0700

–

LA130URD73LI0315

LA130URD73LI0350

LA130URD73LI0400

LA130URD73LI0450

LA130URD73LI0500

LA130URD73LI0550

LA130URD73LI0630

LA130URD73LI0700

LA120URD73LI0800

–

86

93

99 ⁄ 100

110 ⁄ 112

116 ⁄ 120

125 ⁄ 132

135 ⁄ 146

136

148

150

170

152 ⁄ 174

168 ⁄ 208

186 ⁄ 200

210 ⁄ 228

203

57

84

110

190

250

370

445

585

755

1430

2040

73

LA130URD73TTI0800

–

LA110URD73LI0900

–

LA130URD73TTI0900

LA100URD73TTI1000

LA100URD73TTI1100

LA100URD73TTI1250

LA090URD73TTI1400

LA070URD73TTI1600

LA065URD73TTI1800

LA100URD73LI1000

LA100URD73LI1100

LA100URD73LI1250

LA090URD73LI1400

LA070URD73LI1600

LA065URD73LI1800

700

660

206

** Watts loss data is published for both blade and tapped style mounting configurations.

When two watts loss values are shown, this represents tapped/blade values respectively.

Contact Littelfuse for characteristic curves.

w w w . l i t t e l f u s e . c o m

105

•

Special Purpose Fuses

Square Body Semiconductor Fuses

•

700/1300 VAC Very Fast Acting 40 – 2500 Amperes

TYPES LI AND LLI

A

J

B

C

D

2.85

[72.5]

E

F

A

0.2

[5.03]

G

H

North American Straight Blade, Types LI and LLI

Dimensions for reference only.

Dimensions - 1300V Fuses

Dimensions In Inches (mm in parentheses)

Catalog Number

A

B

C

D

E

F

G

H

J

LA130URD70LI (63-315)

LA120URD70LI (350)

1.57

(40)

0.98

(25)

0.49

(12.5)

0.83

(21)

0.71

(18)

3.60

(91.4)

5.13

(130.4)

6.00

(152.4)

0.41

(10.5)

LA130URD71LLI (160-450)

LA120URD71LLI (500-550)

LA110URD71LLI (630)

2.01

(51)

0.98

(25)

0.49

(12.5)

1.0

(26.5)

0.89

(22.5)

3.60

(91.4)

5.13

(130.4)

6.00

(152.4)

0.57

(14.6)

LA130URD72LI (280-550)

LA120URD72LI (800)

LA110URD72LI (700-800)

2.36

(60)

1.26

(32)

0.63

(16)

1.18

(30)

1.06

(27)

3.84

(97.6)

5.2

(132.4)

6.20

(157.4)

0.57

(14.6)

LA130URD73LI (315-700)

LA120URD73LI (800)

LA110URD73LI (900-1000)

LA090URD73LI (1400)

LA070URD73LI (1600)

LA065URD73LI (1800)

2.93

(74.5)

1.57

(40)

0.79

(20)

1.46

(37.2)

1.35

(34.2)

3.89

(98.8)

5.21

(132.4)

6.20

(157.4)

0.63

(15.9)

North American Flat Single Hole, Type TTI

TYPE TTI

Dimensions - 1300V Fuses

Dimensions for reference only.

C

Dimensions in Inches (mm)

Catalog Number

A

B

C

LA130URD70TTI (63-315)

LA120URD70TTI (350)

LA130URD71TTI (160-450)

LA120URD71TTI (550-630)

1.57

(40)

2.01

(51)

1.00

(26.4)

1.19

(30.2)

5

16

⁄ -18 x 0.23 DP

A

16

⁄ -18 x 0.36 DP

LA130URD72TTI (280-630)

LA120URD72TTI (700-800)

2.36

(60)

1.50

(38.1)

3

8

⁄ -18 x 0.36 DP

2.85 MAX

[72.5]

B

A

2.91

[74]

0.2

[5.03]

LA130URD73TTI (315-900)

LA120URD73TTI (1000)

LA110URD73TTI (1250)

LA090URD73TTI (1400)

LA070URD73TTI (1600)

LA065URD73TTI (1800)

2.93

(74.5)

1.81

(46)

1

2

⁄ -18 x 0.36 DP

106

w w w . l i t t e l f u s e . c o m

•


型号：	L13S90
厂家：	LITTELFUSE
描述：	Electric Fuse, Fast Blow, 90A, 150VAC, 100VDC, 100000A (IR), Inline/holder 电路保护
文件：	总23页 (文件大小：1089K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

L13S90 [LITTELFUSE]

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