Catalog

Ampere

Competitor A

Competitor B

Number

Rating

Part Number

Part Number

L17T 70

70

TPL-BA

TGL-BA

L17T 90

90

TPL-BC

TGL-BC

L17T 100

100

TPL-BD

TGL-BD

L17T 125

125

TPL-BE

TGL-BE

L17T 150

150

TPL-BF

TGL-BF

L17T 175

175

TPL-BG

TGL-BG

L17T 200

200

TPL-BH

TGL-BH

L17T 225

225

TPL-BK

TGL-BK

L17T 250

250

TPL-BL

TGL-BL

L17T 300

300

TPL-CN

TGL-CN

L17T 350

350

TPL-CO

TGL-CO

L17T 400

400

TPL-CR

TGL-CR

L17T 450

450

TPL-CU

TGL-CU

L17T 500

500

TPL-CV

TGL-CV

L17T 600

600

TPL-CZ

TGL-CZ

L17T 800

800

TPL-CZH

TGL-CZH

L17T 900

900

-

-

L17T 1000

1000

-

-

L17T 1100

1100

-

-

L17T 1200

1200

-

-

75

L17T Series Telecommunications Power Fuse

SPECIFICATIONS

Voltage Rating: 170 VDC

Interrupting Rating: 100,000 amperes

Ampere Range: 70 – 1200 amperes

Approvals: UL Recognized under the Components Program

(File No: E71611)

CSA Recognized under the Component

Acceptance Program (File No: LR29862)

AMPERE RATINGS

70

125

200

300

450

800

1100

90

150

225

350

500

900

1200

100

175

250

400

600

1000

Example part number (series & amperage): L17T 200

RECOMMENDED FUSE BLOCKS

LTFD 6001 and LTFD1200 series

Refer to the LTFD series in this catalog section for

additional information.

FEATURES

I

I

Extremely current limiting

I

Low operating temperature

I

170 VDC rating

Specifically designed for short circuit protection of

Telecommunications circuits, the Littelfuse L17T series

fuses provide reliable protection of sensitive DC power

distribution systems. Constructed with silver plated elements

virtually eliminate equipment damage due to surges and

spikes. The L17T series fuse’s unique element geometry

also provides cooler running temperatures, helping to

minimize heat within enclosures.

AMPERE

RATING

70 – 250

1-5/32

1-7/8

2-3/16 2-21/32

1

7/8

5/16

3/16

(29.4)

(47.6)

(55.6)

(67.5)

(25.4)

(22.2)

(7.9)

(4.8)

300 – 800

1-1/4

1-15/16 2-9/16

3-1/2

1-1/2

1

13/32

1/4

(31.8)

(49.2)

(65.1)

(88.9)

(38.1)

(25.4)

(10.3)

(6.35)

1000 – 1200 1-11/32

—

—

4-1/16

—

1-1/2

—

1/4

(34.0)

(103.12)

(38.1)

(6.35)

AB

C

D

E

F

G

H

DIMENSIONS IN INCHES (mm in parentheses)

Contact Littelfuse for characteristic curves.

A

B

C

D

F

G

E

H

Fig. 3

ORDERING INFORMATION & CROSS REFERENCE