POWR-GARD
®
Fuse Datasheet
Littelfuse.com © 2013 Littelfuse POWR-GARD
®
Products
Rev: 013013
1 of 1
Description
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 for low
I
2
t and peak let-through, these advanced fuses virtually
eliminate equipment damage due to surges and spikes. The
L17T series fuse unique element geometry also provides
cooler running temperatures, helping to minimize heat within
enclosures.
Features
• Low I
2
t
• Extremely current-limiting
• Low operating temperature
• 170 VDC rating
Specifications
Voltage Rating 170 VDC
Interrupting Rating 100 kA
Ampere Range 70 – 1200 A
Approvals UL Recognized (File: E71611)
CSA Recognized (File: LR29862)
A
B
C
D
F
G
E
H
Ordering Information
AMPERE
RATING
DIMENSIONS INCHES (mm)
A B C D E F G H
70 – 250
1
5
⁄
32
(29.4)
1
7
⁄
8
(47.6 )
2
3
⁄
16
(55.6)
2
21
⁄
32
(67.5 )
1
(25.4)
7
⁄
8
(22.2)
5
⁄
16
(7.9 )
3
⁄
16
(4.8)
300 – 800
1
1
⁄
4
(31.8)
1
15
⁄
16
(49.2)
2
9
⁄
16
(65.1)
3
1
⁄
2
(88.9)
1
1
⁄
2
(38.1)
1
(25.4)
13
⁄
32
(10.3)
1
⁄
4
(6.35)
900–1200
1
11
⁄
32
(34.0)
— —
4
1
⁄
16
(103.1)
—
1
1
⁄
2
(38.1)
—
1
⁄
4
(6.35)
L17T SERIES TELCOM POWER FUSE
170 VDC • Current-Limiting • 70-1200 A
AMPERE RATINGS
70 125 200 300 450 800 1100
90 150 225 350 500 900 1200
100 175 250 400 600 1000 —
Web Resources
For additional information, visit:
Littelfuse.com/l17t
Recommended Fuse Holders
LTFD 6001 and LTFD 1200 series, visit:
Littelfuse.com/ltfd
SERIES VOLTAGE AMPERAGE
CATALOG
NUMBER
ORDERING
NUMBER
L17T 170 1200 L17T 1200 L17T1200V
Dimensions Inches (mm)
