POWR-GARD® Fuse Datasheet
Class RK1 – llNRK • llsRK • llsRK_ID seRIes FUses
ꢀ
ꢀ
ꢀꢀꢀꢀꢀ250/600ꢀVACꢀ•ꢀDualꢀElementꢀ•ꢀTime-Delayꢀ•ꢀ1/10-600ꢀA
QPL
Ordering Information
ampeRe RatINgs
1
15
2
8
1
10
100
10
4
10
4
/
/
/
1
2 /
6 /
7
8
9
10
12
25
30
35
40
45
50
60
70
75*
80
90
250
300
350
400
450
500
600
1
8
1 /
3
1
2
4
10
2
1 /
3 /
100
110
125
150
175
200
225
1
4
1
10
10
10
/
1 /
3 /
4
3
4
6
10
10
2
/
/
1 /
8
1
2
1 /
4 /
1
/
2
5
15
6
8
1
6
1
10
4
10
2
/
/
2 /
5 /
17 /
20
1
10
2
2 /
6
Note: All LLSRK_ID fuses rated 1 amp and above are Indicator® fuses.
*75 A is only available for the 600 V.
600 V
Catalog
NUmbeR
LLSRK060ID
LLSRK060
oRDeRINg
type
seRIes ampeRage
NUmbeR
LSRK060.ꢀXID
LSRK060.ꢀ
Description
INDICAꢀING
NON-INDICAꢀING
LLSRK_ID
LLSRK
60
60
RK1 fuses are extremely current-limiting fuses meaning they
greatly reduce or eliminate damage to circuits and equipment under
short-circuit conditions. Replacing existing Class H, K and RK5 fuses
with RK1 fuses is one of the easiest ways to immediately improve
the protection of plant workers and equipment.
250 V
Catalog
NUmbeR
LLNRK080
oRDeRINg
NUmbeR
LNRK080.V
type
seRIes ampeRage
LLNRK 80
NON-INDICAꢀING
Applications
•ꢀ All general purpose circuits
•ꢀ Motors
•ꢀ Transformers
Web Resources
TC Curves, downloadable CAD drawings and other technical
information: www.littelfuse.com/llsrk
www.littelfuse.com/llnrk
•ꢀ Safety upgrades
Dimensions
Please refer to the Class R dimensions page 3.
Features/Benefits
Peak Let-Thru Curve (600V)
•ꢀ POWR-PRO Performance
•ꢀ Indication available
•ꢀ Dual-element design
•ꢀ Extremely Current-Limiting
LLSRK
1000000
•ꢀ IECType 2 “No Damage” protection to IEC and NEMA
type motor starters
•ꢀ Indicating and DIN mount fuse holders available
100000
500 A
400 A
Specifications
Voltage Ratings
600 VAC/300 VDC (LLSRK/LLSRK_ID)
250 VAC/125 VDC (LLNRK)
AC: 200 kA rms symmetrical
300 kA rms symmetrical
(Littelfuse self-certified)
DC: 20 kA
200 A
100 A
60 A
10000
Interrupting Ratings
30 A
Ampere Range
Approvals
1/10 – 600 A
1000
AC: Standard 248-12, Class RK1
UL Listed (File: E81895)
CSA Certified (File: LR29862)
DC: Littelfuse self-certified
Federal Specification WF-1814
(QPL- W-F-1814)
100
AVAILABLE FAULT CURRENT
SYMMETRICAL R.M.S. AMPERES
Recommended Fuse Holders
LFR60ꢀSeriesꢀ•ꢀLFR25ꢀSeries
Note: For more information, see Peak Let-Thru Table
© 2012 Littelfuse POWR-GARD® Products
Rev: 100112
1 of 3
www.littelfuse.com