POWR-GARD
®
Fuse Datasheet
© 2014 Littelfuse POWR-GARD
®
Products
Rev: 020614
littelfuse.com
1 of 2
250/600 Vac • Fast-Acting • 1-600 A
1 10 40 100 250
2 12 45 110 300
3 15 50 125 350
4 20 60 150 400
5 25 70 175 450
6 30 80 200 500
8 35 90 225 600
Web Resources
Download TC Curves, CAD drawings and other technical
information: littelfuse.com/klsr
littelfuse.com/klnr
Peak Let-Thru Curve (600 V)
Ordering Information
KLSR 90 KLSR090 KLSR090.V
600 V
250 V
KLNR 90 KLNR090 KLNR090.V
KLSR
Description
KLSR/KLNR fuses are an economical single element design
providing the safety of an RK1 fuse.
Applications
• Resistance heaters
• Lighting circuits
• Non-inductive loads
Features/Benefits
• Extremely Current-Limiting
• Indicating and DIN mount fuse holders available
Specifications
Voltage Ratings AC: 250 V (KLNR); 600 V (KLSR)
DC: 125 V (1 – 600 A KLNR);
250 V (1 – 30 A KLSR);
300 V (35 – 600 A KLSR).
Interrupting Ratings AC: 200 kA rms symmetrical
DC: 20 kA
Ampere Range 1 – 600 A
Approvals AC: Standard 248-12, Class RK1
UL Listed (File: E81895)
CSA Certified (File: LR29862)
DC: Littelfuse self-certified
Recommended Fuse Holders
LFR60 Series - LFR25 Series