
© 2012 Littelfuse POWR-GARD
®
Productswww.littelfuse.com
Rev: 100112
1 of 2
POWR-GARD
®
Fuse Datasheet
CLASS J – JLS SERIES FUSES
600 VAC • Fast-Acting • 1-600 A
AMPERE RATINGS
1 20 45 90 175 350
3 25 50 100 200 400
6 30 60 110 225 450
10 35 70 125 250 500
15 40 80 150 300 600
Description
JLS series fuses provide space saving, fast-acting overload
and short-circuit protection for non-inductive loads.
For ap pli ca tions where short-duration surg es and spikes may
cause nuisance fuse opening, consider the use of Littelfuse
POWR-PRO
®
JTD or JTD_ID series time-delay fuses.
Applications
• General purpose circuits with little or no motor load.
• Resistive loads, such as resistance electric heat.
• Loads requiring fast-acting overload protection, such as
equipment containing solid-state devices.
Specifications
Voltage Ratings 600 VAC
Interrupting Ratings 200 kA rms symmetrical
Ampere Range 1–600 A
Approvals Standard 248-8, Class J
UL Listed (File: E81895)
CSA Certified (File: LR29862)
Federal Specification WF-1814
(QPL-W-F-1814)
10000
100000
200000
100
1000
100
1000
10000
100000
1000000
600 A
400 A
200 A
100 A
60 A
30 A
PEAK LET-THRU IN AMPERES
AVAILABLE FAULT CURRENT
SYMMETRICAL R. M. S. AMPERES
TYPE SERIES AMPERAGE
CATALOG
NUMBER
ORDERING
NUMBER
NON-INDICATING JLS 110 JLS110 0JLS110.X
Ordering Information
Dimensions
Please refer to the Class J dimensions on page 2
Web Resources
TC curves, downloadable CAD drawings and other technical
information: Littelfuse.com/jls
Recommended Fuse Holders
LFJ60 Series (cover is not compatible with JLS series fuses)
LFPSJ Series (
8
⁄
10
–60 A)
Peak Let-Thru Curve
JLS
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