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P o w e r D i s t r i b u t i o n P r o t e c t i o n
Telecom Disconnect Switch
LTFD 1200 Series -- 900 to 1200 Amp
Ordering Information
Catalog Number
LTFD 1200-01
Specifications
Voltage Rating:
60 VDC
Ampere Range:
900 to 1200 amperes
Approvals:
UL Recognized (File No. E122674)
Dimensions
6.750"
5.750"
0.50"
3.0" 4.0"
0.50"
2.750"
4.00"
2.625"
5.250"
1.313"
ALARM
TAB
0.266" DIA. HOLE
WITH 0.50" X 0.156"
DEEP CORE
(4 PLACES
)
ALARM
FUSE
CLEAR COVER FOR
CUSTOMER LABEL
1.125-12
7.625"
3.625"
Littelfuse's new 1200 ampere
LTFD 1200-01 fuseholders are designed
for high power applications where space
and costs are major concerns. This com-
pact fuseholder is designed
specifically for 900 to 1200A applications
and can replace two conventional 600A
holders. An optional integrated alarm
fuse circuit provides visual and remote
notification of a blown fuse. The
innovative pull-out design provides a
positive connection and eliminates the
need for tools to replace blown fuses.
Features
Compact
Vented for cool running operation
Quick fuse replacement
Optional integrated alarm
signaling circuit
Recommended Fuses
Littelfuse L17T Series fuses
Littelfuse 481 Series Alarm fuses
Telecommunications Power Fuse
TLN Series
Specifications
Voltage Rating:
170 VDC
Interrupting Rating:
100,000 amperes
Ampere Range:
1 to 600 amperes
Approvals:
UL Recognized
The TLN Series fuses are specifically
designed for the protection of
telecommunications DC power
distribution circuits.
Features
170 VDC
Fast-acting and current limiting
1 to 600 amperes
Dimensions
Ampere
Dimensions in Inches (mm)
Rating
A
B
C
D
E
F
G
H
J
K
Figure 1
1 30
2
1/2
1/2
9/16
5/64
5/32
3/8
--
--
--
(50.8)
(12.7)
(12.7)
(14.3)
(2.0)
(4.0)
(9.5)
35 60
3
3/4
5/8
13/16
3/32
3/16
5/8
--
--
--
(76.2)
(19.1)
(15.9)
(20.6)
(2.4)
(4.8)
(15.9)
Figure 2
70 100
5-7/8
1
1-1/16
1-1/16
1/8
3/4
1-1/4
1/4
9/32
1/2
(149.2)
(25.4)
(27.0)
(27.0)
(3.2)
(19.1)
(31.6)
(6.4)
(7.1)
(12.7)
110 200
7-1/8
1-1/2
1-15/32 1-19/32
3/16
1-1/8
1-27/32
7/16
9/32
11/16
(181.0)
(38.1)
(37.3)
(40.5)
(4.8)
(28.6)
(46.8)
(11.1)
(7.1)
(17.5)
225 400
8-5/8
2
1-15/16 2-3/32
1/4
1-5/8
2-11/32
5/8
13/32
15/16
(219.1)
(50.8)
(49.2)
(53.2)
(6.4)
(41.3)
(59.5)
(15.9)
(10.3)
(23.8)
450 600
10-3/8
2-1/2
2-3/8
2-19/32
1/4
2
2-27/32
3/4
17/32
1-1/8
(263.5)
(63.5)
(60.3)
(65.9)
(6.4)
(50.8)
(72.2)
(19.1)
(13.5)
(28.6)
A
F
E
C
D
G
B
A
J
K
H
B
C
F
D
FIG. 1
FIG. 2
E
Dimensions
Ordering Information
Catalog
Catalog
Catalog
Catalog
Number Amperage
Number Amperage
Number Amperage
Number Amperage
TLN 1
1
TLN 30
30
TLN 90
90
TLN 250
250
TLN 3
3
TLN 35
35
TLN 100
100
TLN 300
300
TLN 5
5
TLN 40
40
TLN 110
110
TLN 350
350
TLN 6
6
TLN 45
45
TLN 125
125
TLN 400
400
TLN 10
10
TLN 50
50
TLN 150
150
TLN 450
450
TLN 15
15
TLN 60
60
TLN 175
175
TLN 500
500
TLN 20
20
TLN 70
70
TLN 200
200
TLN 600
600
TLN 25
25
TLN 80
80
TLN 225
225
Replaces Competitor's TPN and TGN Series
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