POWR-GARD® Fuse Datasheet
© 2012 Littelfuse POWR-GARD® Productswww.littelfuse.com
Rev: 100112
1 of 2
CLASS J – JLS SERIES FUSES
600 VAC • Fast-Acting • 1-600 A
AMPERE RATINGS
120 45 90 175 350
325 50 100 200 400
630 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 No. E81895)
CSA Certified (File No. LR29862)
Federal Specification WF-1814
(Q PL-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
05567005
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: www.littelfuse.com/jls
Recommended Fuse Holders
LFJ60 Series
LFPSJ Series (8⁄10 –60 A)
Peak Let-Thru Curve
QP
L
JLS
POWR-GARD® Fuse Datasheet
© 2012 Littelfuse POWR-GARD® Productswww.littelfuse.com
Rev: 100112
2 of 2
CLASS J DIMENSIONS AND CURRENT-LIMITING EFFECTS
A
C
D
GF
E
H
A
B
C
D
Fig. 1 Fig. 2
Dimensions Inches (mm)
AMPERES REFER TO
FIG. NO.
DIMENSIONS INCHES (mm)
A B C D E F G H
1 – 30 1 21⁄4 (57.2) —1⁄2 (12.7) 13⁄16 (20.6) — — — —
35 – 60 1 23⁄8 (60.3) —5⁄8 (15.9) 11⁄16 (27.0 ) — — — —
70 – 100 2 25⁄8 (66.7) 317⁄32 (89.7) 323⁄32 (94.5) 45⁄8 (117.5) 1 (25.4) 3⁄4 (19.1) 9⁄32 (7.1) 1⁄8 (3.2)
110 – 200 23 (76.2) 49⁄32 (108.7) 415 ⁄32 (113.5) 53⁄4 (146.1) 11⁄2 (38.1) 11⁄8 (28.6) 9⁄32 (7.1) 3⁄16 (4.8)
225 – 400 2 33⁄8 (85.7) 51⁄8 (130.2) 53⁄8 (136.5) 71⁄8 (181.0) 2 (50.8) 15⁄8 (41.3) 13 ⁄32 (10.3) 1⁄4 (6.4)
450 – 600 2 33⁄4 (95.3) 527⁄32 (148.4) 65⁄32 (156.4) 8 (203.2) 21⁄2 (63.5) 2 (50.8) 17⁄32 (13.5) 3⁄8 (9.5)
Dimensions
