14
POWR-PRO
FUSES
JTD_ID Series Indicator POWR-PRO
Class J Fuses
600 VAC
I
Time Delay
I
8/10
–
600 Amperes
A
B
—
C
1/2
(12.7)
5/8
(15.9)
3-23/32
(94.5)
4-15/32
(113.5)
5-3/8
(136.5)
6-5/32
(156.4)
D
E
—
F
—
G
—
H
—
8/10
–
30
1
2-1/4
(57.2)
2-3/8
(60.3)
2-5/8
(66.7)
3
(76.2)
3-3/8
(85.7)
3-3/4
(95.3)
13/16
(20.6)
1-1/16
(27.0)
4-5/8
(117.5)
5-3/4
(146.1)
7-1/8
(181.0)
8
(203.2)
35
–
60
1
—
—
—
—
—
70
–
100
2
3-17/32
(89.7)
4-9/32
(108.7)
5-1/8
(130.2)
5-27/32
(148.4)
1
3/4
(19.1)
1-1/8
(28.6)
1-5/8
(41.3)
2
(50.8)
9/32
(7.1)
9/32
(7.1)
13/32
(10.3)
17/32
(13.5)
1/8
(3.2)
3/16
(4.8)
1/4
(6.4)
3/8
(9.5)
(25.4)
1-1/2
(38.1)
2
(50.8)
2-1/2
(63.5)
110
–
200
2
225
–
400
2
450
–
600
2
AMPERES
REFER TO
FIG. NO.
DIMENSIONS IN INCHES (mm in parentheses)
A
C
D
G
F
E
H
A
B
C
D
FIG. 1
FIG.2
An Inside Look . . .
Superior Short-Circuit Elements
–
reduce damage to equipment and
enables the Littelfuse JTD_ID to
provide IEC Type II
“
NO DAMAGE
”
protection to IEC and NEMA
motor starters.
Stone-Sand Filler
–
helps provide
I
2
t and I Peak values well below UL
maximum limits and improves heat
disapation and reliability.
Elastomeric Silicone EPR Plug
–
a space-age material used in the
patented overload section of the
Littelfuse JTD_ID.
Plated End Caps
–
help reduce
corrosion and provide superior
contact that aids in lower heat
generation.
Blown Fuse Indicator
–
incorpo-
rates precision-wound elements to
provide consistant and reliable
blown fuse indication.
Solid State Overload Section
–
patented thermally reversible design
utilizes high-tech aircraft grade
polymers to ensure reliable operation
every time.
Granular Quartz Filler
–
assists in quenching
the arc that occurs during overload conditions.