POWR-PRO
®
Fuses
IDSR Series Indicator
®
POWR-PRO
®
Class RK5 Fuse
600 V AC/DC • Time-Delay • 1/10 – 600 Amperes
Money is wasted each time a circuit opens and halts production.
The indicator window of the IDSR allows maintenance personnel to
pinpoint blown fuses immediately. The circuit can then be tested and
any problem corrected without unnecessary delay, minimizing costly
downtime.
POWR-PRO
®
Fuses
Applications
DC circuits
All general purpose circuits
Motors
Transformers
Solenoids
Fluorescent lighting
All system components with high in-rush currents
Features/Benefits
• Superior Performance – Littelfuse leading edge metallurgy
eliminates all moving parts in a true dual-element design. The IDSR
also provides superior time-delay to withstand minor current surges
without sacrificing protection for sustained overloads or short-
circuit conditions.
• 600 Volt AC/DC Rating – The IDSR is UL Listed for 600 volts
AC/DC, which makes it ideal for a variety of applications. It is also
MSHA approved.
• Reduce Downtime – Costly downtime is minimized using Littelfuse
Indicator fuses. A glance at the indicator window tells if the fuse
has blown. If the window is dark, the fuse has opened. It’s that
simple.
• Increase Safety – Littelfuse Indicator Fuses minimize exposure to
“live” circuit parts while searching for a blown fuse. Other forms of
indication require current to power a light. Littelfuse Indicator fuses
can be identified with the power off.
The Littelfuse IDSR Indicator fuse offers a patented solid-state design
and provides state-of-the-art reliability along with the convenience of
blown fuse indication. The unique design of the IDSR also features a
600 volt AC/DC rating making it ideal for DC applications.
Specifications
Voltage Ratings:
Interrupting Ratings:
AC: 600 Volts
DC: 600 Volts
AC: 200,000 amperes rms symmetrical
300,000 amperes rms symmetrical
(Littelfuse self-certified)
DC: 20,000 amperes
1
⁄
10
– 600 amperes
Standard 248-12 and UL 198M, Class RK5
UL Listed (File No: E81895)
CSA Certified (File No: LR29862)
MSHA 600 Volt Listing
Ampere Ratings
⁄
10
1
⁄
8
15
⁄
100
2
⁄
10
1
⁄
4
3
⁄
10
4
⁄
10
1
⁄
2
1
Ampere Range:
Approvals:
⁄
10
8
⁄
10
1
1
1
⁄
8
1
1
⁄
4
1
4
⁄
10
1
1
⁄
2
1
6
⁄
10
6
1
8
⁄
10
2
2
1
⁄
4
2
1
⁄
2
2
8
⁄
10
3
3
2
⁄
10
3
1
⁄
2
4
4
1
⁄
2
5
5
6
⁄
10
6
6
1
⁄
4
7
7
1
⁄
2
8
9
10
12
15
17
1
⁄
2
20
25
30
35
40
45
50
60
70
75
80
90
100
110
125
150
175
200
225
250
300
350
400
450
500
600
Example part number (series & amperage): IDSR 30
Note: All fuses rated 1 amp and above are Indicator
®
fuses.
Dimensions
Please refer to the FLSR_ID dimensions.
Recommended Fuse Blocks
LR600 series
Refer to the Blocks & Holders section of this catalog for additional information.
Contact Littelfuse for characteristic curves.
www.littelfuse.com
© 2005 Littelfuse
•
POWR-GARD
™
Products Catalog
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