LITTELFUSE L70S90, L70S800, L70S700, L70S70, L70S100 Datasheet

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LITTELFUSE L70S90, L70S800, L70S700, L70S70, L70S100 Datasheet

Semiconductor Fuses

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

SPECIFICATIONS

Voltage Ratings: L15S: 150 V AC/DC (1 – 60A) 150 VAC (70 – 1000A) 100 VDC (70 – 1000A)

L25S: 250 V AC/DC (1 – 200A) 250 VAC (225 – 800A) 200 VDC (225 – 800A)

L50S: 500 VAC/450VDC

L60S: 600 VAC

KLC: 600 VAC

L70S: 700VAC/650VDC

Interrupting Rating: AC: 200,000 rms amperes

(L15S series 100,000 amperes) DC: 20,000 amperes

Ampere Range: 1 – 1000 amperes

See Rating Table for ratings available in each series.

Approvals: UL Recognized under the Components Program and CSA Recognized under the Component Acceptance Program.

UL File No: E71611 CSA File No: LR29862

L15S and L25S series fuses are Littelfuse

Certified for DC ratings shown in Rating Table.

AMPERE RATINGS

See Rating Table.

RECOMMENDED FUSE BLOCKS

LSCR series:Refer to Fuse Block section of this catalog for additional information.

Designed to protect today’s equipment and systems, Littelfuse semiconductor fuses are manufactured with Littelfuse-developed technology that sets tomorrow’s standards for accuracy, consistent quality, reliability, and predictable performance. By using advanced metallurgical, polymer, and materials research; mathematical modeling, and computerized statistical analysis; Littelfuse engineers have redefined “State-of-the-Art.”

APPLICATIONS

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.

SAFETY

200,000 A.I.R. — Reliable interruption of all overcurrents up to 200,000 amperes . . . meets present and future system requirements. (Note: L15S series has 100,000 A.I.R.)

Extremely Current Limiting — Low I 2t and peak let-through currents meet most semiconductor requirements.

UL Recognized — Littelfuse semiconductor fuses are recognized under the components program of Underwriters Laboratories, Inc., and carry the mark. UL Recognized semiconductor fuses may be used to provide supplementary protection in UL listed equipment.

LONGER EQUIPMENT LIFE

Low Watt Losses — Means less heating and power consumption in circuit.

Controlled Transient Overvoltages — All circuits are subject to transient overvoltages during fault current interruption. These transient overvoltages (arc voltages) start when fuse links melt or circuit breaker contacts part, and subside when circuit is interrupted. Semiconductors are very sensitive to overvoltages. Littelfuse semiconductor fuse designs keep transient overvoltages to low levels and help reduce semiconductor failure.

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Semiconductor Fuses

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

RATING TABLE

 

 

 

Series & Voltage

 

 

 

 

 

 

 

 

 

Ampere

L15S

L25S

L50S

L60S

KLC‡

L70S

Ratings

150V AC

250V AC

500V AC

600V AC

600V AC

700V AC

 

150V DC (1 – 60A)

250V DC (1 – 200A)

 

100V DC (70 – 1000A)

200V DC (225 – 800A)

450V DC

 

 

650V DC

 

 

 

 

 

 

 

1

L15S 1

L25S 1

 

L60S 1

KLC 1

 

2

L15S 2

L25S 2

 

L60S 2

KLC 2

 

3

L15S 3

L25S 3

 

L60S 3

KLC 3

 

4

L15S 4

L25S 4

 

L60S 4

KLC 4

 

5

L15S 5

L25S 5

 

L60S 5

KLC 5

 

 

 

 

 

 

 

 

6

L15S 6

L25S 6

 

L60S 6

KLC 6

 

7

L15S 7

 

 

 

KLC 7

 

8

L15S 8

L25S 8

 

L60S 8

KLC 8

 

9

L15S 9

 

 

 

 

 

10

L15S 10

L25S 10

L50S 10

L60S 10

KLC 10

L70S 10

 

 

 

 

 

 

 

12

L15S 12

L25S 12

L50S 12

L60S 12

KLC 12

 

15

L15S 15

L25S 15

L50S 15

L60S 15

KLC 15

L70S 15

1712

 

 

 

L60S 1712

KLC 1712

 

20

L15S 20

L25S 20

L50S 20

L60S 20

KLC 20

L70S 20

25

L15S 25

L25S 25

L50S 25

L60S 25

KLC 25

L70S 25

 

 

 

 

 

 

 

30

L15S 30

L25S 30

L50S 30

L60S 30

KLC 30

L70S 30

35

L15S 35

L25S 35

L50S 35

L60S 35

KLC 35

L70S 35

40

L15S 40

L25S 40

L50S 40

L60S 40

KLC 40

L70S 40

45

L15S 45

L25S 45

 

L60S 45

KLC 45

 

50

L15S 50

L25S 50

L50S 50

L60S 50

KLC 50

L70S 50

 

 

 

 

 

 

 

60

L15S 60

L25S 60

L50S 60

L60S 60

KLC 60

L70S 60

70

L15S 70

L25S 70

L50S 70

L60S 70

KLC 70

L70S 70

80

L15S 80

L25S 80

L50S 80

L60S 80

KLC 80

L70S 80

90

L15S 90

L25S 90

L50S 90

L60S 90

KLC 90

L70S 90

100

L15S 100

L25S 100

L50S 100

L60S 100

KLC 100

L70S 100

 

 

 

 

 

 

 

110

 

 

 

 

KLC 110

 

125

L15S 125

L25S 125

L50S 125

L60S 125

KLC 125

L70S 125

150

L15S 150

L25S 150

L50S 150

L60S 150

KLC 150

L70S 150

175

 

L25S 175

L50S 175

L60S 175

KLC 175

L70S 175

200

L15S 200

L25S 200

L50S 200

L60S 200

KLC 200

L70S 200

225

 

L25S 225

L50S 225

L60S 225

KLC 225

L70S 225

250

L15S 250

L25S 250

L50S 250

L60S 250

KLC 250

L70S 250

275

 

L25S 275

L50S 275

 

 

 

300

L15S 300

L25S 300

L50S 300

L60S 300

KLC 300

L70S 300

350

L15S 350

L25S 350

L50S 350

L60S 350

KLC 350

L70S 350

 

 

 

 

 

 

 

400

L15S 400

L25S 400

L50S 400

L60S 400

KLC 400

L70S 400

450

L15S 450

L25S 450

L50S 450

L60S 450

KLC 450

L70S 450

500

L15S 500

L25S 500

L50S 500

L60S 500

KLC 500

L70S 500

550

 

 

L50S 550

 

 

 

600

L15S 600

L25S 600

L50S 600

L60S 600

KLC 600

L70S 600

 

 

 

 

 

 

 

700

 

L25S 700

L50S 700

L60S 700

KLC 700

L70S 700

800

L15S 800

L25S 800

L50S 800

L60S 800

KLC 800

L70S 800

900

 

 

 

 

 

 

1000

L15S 1000

 

 

 

 

 

 

 

 

 

 

 

 

‡ KLC series fuses are recommended for replacement use only.

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