POWR-PRO® Fuses
22
POWR-PRO® Fuses
www.littelfuse.com © 2005 Littelfuse • POWR-GARD™ Products Catalog
IDSR Series Indicator® POWR-PRO® Class RK5 Fuse
600 V AC/DC • Time-Delay • 1/10 – 600 Amperes
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.
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.
Applications
DC circuits
All general purpose circuits
Motors
Transformers
Solenoids
Fluorescent lighting
All system components with high in-rush currents
Features/Benefits
• SuperiorPerformance–Littelfuseleadingedgemetallurgy
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.
• 600VoltAC/DCRating–TheIDSRisULListedfor600volts
AC/DC, which makes it ideal for a variety of applications. It is also
MSHA approved.
• ReduceDowntime–CostlydowntimeisminimizedusingLittelfuse
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.
• IncreaseSafety–LittelfuseIndicatorFusesminimizeexposureto
“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.
Specifications
Voltage Ratings: AC: 600 Volts
DC: 600 Volts
Interrupting Ratings: AC: 200,000 am peres rms symmetrical
300,000 amperes rms sym met ri cal
(Littelfuse self-certified)
DC: 20,000 amperes
Ampere Range: 1⁄10 – 600 amperes
Approvals: Standard 248-12 and UL 198M, Class RK5
UL Listed (File No: E81895)
CSA Certified (File No: LR29862)
Dimensions
Please refer to the FLSR_ID dimensions.
Ampere Ratings
1⁄10 6⁄10 18⁄10 4 8 30 80 225
1⁄88⁄10 2 41⁄2935 90 250
15 ⁄100 1 21⁄4510 40 100 300
2⁄10 11⁄821⁄256⁄10 12 45 110 350
1⁄411⁄428⁄10 615 50 125 400
3⁄10 14⁄10 3 61⁄4171⁄260 150 450
4⁄10 11⁄232⁄10 720 70 175 500
1⁄216⁄10 31⁄271⁄225 75 200 600
Example part number (series & amperage): IDSR 30
Note: All fuses rated 1 amp and above are Indicator
® fuses.
Recommended Fuse Blocks
LR600 series
Refer to the Blocks & Holders section of this catalog for ad di tion al in for ma tion.
Contact Littelfuse for characteristic curves.
