Littelfuse.com/solar
© 2020 Littelfuse, Inc.
Rev: 110220
1 of 3
POWR-GARD
®
Fuse Holder
LFXV15 SERIES FUSE BLOCK & COVER
1500 V • 35–60 A
REACH
Description
The Littelfuse LFXV15 series fuse block and cover is
designed to hold 1500 V size 20 x 127 mm fuses rated
35–60 amperes. Suitable for photovoltaic systems (string
and high-capacity combiner boxes) with fault currents up to
50 kA.
With available ampere ratings up to 60 A, more strings can
be pre-combined in harnesses to reduce the number of
inputs into combiner boxes, thereby decreasing installation
time and labor costs.
Features/Benefits
Dead-front cover design offers personnel protection
Ventilated design keeps the fuse running cooler, even
at high ambient temperatures and current ratings, to
increase fuse longevity
Narrower width accommodates more blocks in a panel
to maximize space
Designed for easy fuse removal and replacement to
minimize maintenance time. No tools required
35 mm DIN-rail mounting option for quick assembly
and installation
Accepts both wire and busbar for added flexibility
Recommended Fuses
Littelfuse SPXV 20 x 127 mm fuses rated 35–60 amperes.
Specifications
Voltage Ratings 1500 V dc
Amperage Rating 60 A
Withstand Rating 50 kA
Power Dissipation 24.1W Maximum
Fuse Size 20 x 127 mm
Material Thermoplastic
Fuse Clip: Tin-plated copper alloy
Screws: Tin-plated aluminum
Operating Temperature -55 ˚C to +125 ˚C
Flammability Rating UL94 V-0
Temperature Stability Base: 130 ˚C
Cover: 140 ˚C
Approvals Block: UL 4248-19 Listed
(File E345481)
Cover: UL Listed Fuse Accessory
(File E184929)
Environmental RoHS compliant, Lead (Pb) free, REACH
Recommended DIN Rail TH 35-7,5 per IEC 60715
WIRE TYPE
75 ˚C or 90 ˚C
CU Only
Stranded
UL Class B and Class C wire
IEC Class 5 Flexible Wire (self-certified)
BUSBAR SPECIFICATIONS
TERMINAL THICKNESS WIDTH TORQUE
Maximum
0.250 in
(6.35 mm)
0.290 in
(7.37 mm)
25 lb-in
(2.8 N-m)
Minimum
0.125 in
(3.18 mm)
0.200 in
(5.08 mm)
25 lb-in
(2.8 N-m)
VOLTAGE
(V dc)
AMPERE
RATING
POLES
FUSE BLOCK & COVER
ORDERING NUMBER
CONNECTOR
TYPE
DRIVE TORQUE WIRE RANGE WIRE TYPE
1500 60 1 LFXV15060-BC* Box Lug
3/16
Inch Hex
5.6 N-m (50 in-lbs)
2–4 AWG
CU only Stranded
(35-25 MM
2
)
2.8 N-m (25 in-lbs)
6–14 AWG
(16-2.5 MM2)
Ordering Information
*For replacement only: Fuse Block LFXV150601C or Cover LFXV15060FBC
Web Resources
Download the complete datasheet and other technical
documents: Littelfuse.com/LFXV15
Littelfuse.com/solar
© 2020 Littelfuse, Inc.
Rev: 110220
2 of 3
POWR-GARD
®
Fuse Holder
LFXV15 SERIES FUSE BLOCK & COVER
Narrow width of holder
accommodates more blocks
in a panel to maximize space
(34.79 mm; 1.37 in)
Fuse puller hooks
facilitate easy removal
Thermoplastic barriers for
additional safety
SPXV Solar Fuse
(not included)
#10 panel mounting holes available
for installation flexibility
35 mm DIN-rail clip mounting option
for quick assembly and installation
Accepts both wire and busbar
for added flexibility
Handle designed for easy fuse removal
and replacement to minimize
maintenance time. No tools required.
Dead-front cover design
offers personnel protection
Ventilated design keeps fuse
running cooler, even at high
ambient temperatures and current
ratings, to increase fuse longevity
LFXV15 Features & Benefits