POWR-PRO
®
Fuses
JTD_ID Series Indicator
®
POWR-PRO
®
Class J Fuses
600 VAC • Time Delay • 8/10 – 600 Amperes
Applications
POWR-PRO
®
Fuses
Fused combination motor controllers to provide IEC Type 2 (“No
Damage”) motor branch circuit short-circuit and ground fault
protection
Motor control centers
Transformer protection
Protection for UL Listed series rated molded case circuit breaker panels
General purpose circuits — mains, feeders and branch circuits —
especially when space is limited.
Features/Benefits
• Reduce downtime — A glance at the indicating window of a JTD_ID
Indicator fuse pinpoints open fuses immediately. If the indicating
window is dark, the fuse has opened. It’s that simple.
• Reduce nuisance opening — Indicator fuses have superior time-delay
and cycling characteristics which can lengthen fuse life and decrease
needless opening.
• Reduce fuse inventory — JTD_ID Indicator fuses have superior
performance characteristics, which means they can be used on a
variety of applications; therefore, decreasing fuse inventory.
• Reduce equipment damage — Indicator fuses provide superior
overload and short-circuit protection that can reduce equipment
damage. Indicator fuses also provide IEC Type 2 “No Damage”
protection to IEC and NEMA type motor starters.
• Reduce accidents — The JTD_ID Indicator fuse improves safety
by minimizing exposure to live circuits. Unlike other forms of blown
fuse indication, once the indicating window darkens, it stays dark. It
does not matter if the power is on or off or if the fuse is in a tool box.
Other forms of indication require the power to remain on, which is a
safety hazard for personnel.
The Littelfuse POWR-PRO JTD_ID Indicator Class J fuse provides visual
blown fuse indication and maximum protection in a compact package.
The compact Class J package was designed specifically for circuits
where space is at a premium. The current-limiting time delay JTD_ID
offers a patented, true dual-element design that is ideal for use in circuits
with high, in-rush currents. The Superior performance characteristics of
JTD_ID Indicator fuses reduce nuisance fuse opening, and the blown
fuse indication reduces downtime while increasing safety.
Specifications
Voltage Ratings:
AC: 600 Volts
DC: 300 Volts (
8
⁄
10 –
100A)
500 Volts (110 – 600A)
AC: 200,000 amperes rms symmetrical
300,000 amperes rms symmetrical
(Littelfuse self-certified)
8/10 – 600 amperes
AC: Standard 248-8, Class J
ULListed (File No: E81895)
CSA Certified (File No: LR29862)
DC: Littelfuse self-certified
8
⁄
10
- 100A: 300VDC self certified
110 – 600A: 500VDC self certified
Ampere Ratings
⁄
10
1
1
1
⁄
4
1
1
⁄
2
1
6
⁄
10
1
8
⁄
10
2
2
1
⁄
4
2
1
⁄
2
8
Interrupting Ratings:
Ampere Range:
Approvals:
2
8
⁄
10
3
2
3 ⁄
10
3
1
⁄
2
4
4
1
⁄
2
5
5
6
⁄
10
6
7
8
9
10
12
15
17
1
⁄
2
20
25
30
35
40
45
50
60
70
80
90
100
110
125
150
175
200
225
250
300
350
400
450
500
600
Example part number (series & amperage): JTD 60 ID
Recommended Fuse Blocks
LJ600 series, LPSJ series
Refer to Blocks & Holders section of this catalog for additional information.
© 2005 Littelfuse
•
POWR-GARD
™
Products Catalog
www.littelfuse.com
POWR-PRO
®
Fuses
JTD_ID Series Indicator
®
POWR-PRO
®
Class J Fuses
600 VAC • Time-Delay • 8/10 – 600 Amperes
An Inside Look . . .
POWR-PRO
®
Fuses
Superior Short-Circuit Elements
Reduce damage to equipment and enables
the Littelfuse JTD_ID to provide IEC Type 2
“No Damage” protection to IEC and NEMA
motor starters.
Plated End Caps
Help reduce corrosion and provide superior
contact for lower heat generation.
Blown Fuse Indicator
Stone-Sand Filler
Helps provide I t and I
peak
values well below
UL maximum limits and improves heat
dissipation and reliability.
2
Incorporates precision wound elements to
provide consistent and reliable blown fuse
indication.
Solid State Overload Section
Elastomeric Silicone EPR Plug
A space-age material used in the patented
overload section of the Littelfuse JTD_ID.
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.
C
D
A
A
B
D
G
F
H
E
FIG. 1
FIG.2
Amperes
8/10– 30
35 – 60
70 – 100
110 – 200
225 – 400
450 – 600
Refer to
Fig. No.
1
1
2
2
2
2
Dimensions in Inches (mm in parentheses)
A
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)
B
—
—
3
5
⁄
8
(92.1)
4
3
⁄
8
(111.1)
5
1
⁄
4
(133.4)
6 (152.4)
1
5
C
D
13
E
—
—
1
1
⁄
8
(28.6)
1
5
⁄
8
(41.3)
2
1
⁄
8
(54.0)
2
5
⁄
8
(66.7)
3
F
—
—
G
—
—
9
9
13
17
H
—
—
1
3
⁄
2
(12.7)
⁄
8
(15.9)
—
—
—
—
⁄
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)
⁄
4
(19.1)
⁄
32
(7.1)
⁄
32
(7.1)
⁄
8
(3.2)
⁄
4
(6.4)
⁄
8
(9.5)
1
1
⁄
8
(28.6)
1
5
⁄
8
(41.3)
2 (50.8)
⁄
16
(4.8)
⁄
32
(10.3)
⁄
32
(13.5)
1
3
www.littelfuse.com
© 2005 Littelfuse
•
POWR-GARD
™
Products Catalog
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