Littelfuse LD User Manual
POWR-GARD® Blocks and Holders Datasheet
powr-bloks™
Distribution Blocks • Splicer Blocks • Covers
Specifications
Voltage Rating 600 V
Current Rating Based on NEC Table 310.16, using 75°C copper wire
Material Phenolic rated at 150°C and Thermoplastic
rated at 125°C (LD1400 and LS1300 series only)
Connector Standard: Highly con duc tive aluminum, tin plated
Copper: Highly conductive copper, tin plated
Flammability Rating UL94 V-0
Approvals UL Recognized - LD/LS Series (File: E171395)
CSA Certified - LD/LS Series (File: LR700111)
Environmental RoHS compliant, Lead (Pb) free
Ordering Information
Description
POWR-BLOKSTM power distribution blocks offer a safe,
convenient way of splicing cables, providing a fixed junction
tap-off point or splitting primary power into secondary
circuits. Lx2xxx-DIN series offers integral DIN-Rail mount
and an optional hinged safety cover.
Optional power distribution block covers provide protection
against accidental shorting between poles caused by
loose wires, tools, or other conductive material. They also
protect personnel from accidentally contacting energized
connectors. To order protective covers, match the number
of poles for the block to the cover.
Applications
Typical applications include heating, air conditioning and
refrigeration systems, el e va tor systems, material handling
equipment, control panels, motor controls, switchgear,
and anywhere power needs to be distributed to more
than one load.
Connectors
Box lug connectors are designed for use with a single, solid
or class B or C stranded conductor. Use of more than one
con ductor per connector opening or use of extra-flexible,
fine-stranded conductors, such as welding cable, voids the
UL Listing and may cause overheating. Manufacturers of
cable ter minations can furnish crimp-on sleeves for fine
stranded conductors which permit these conductors to be
used with box lugs.
Ampere Ratings
The ampere rating per pole for power distribution blocks is
based on the line ampacity of 75°C insulated conductors per
®
NEC
Table 310.16. If 60°C insulated conductors are used,
load must not exceed the ampacity of 60°C conductors.
Use of conductors rated in excess of 75°C is permitted (for
example 90°C), however, load must not exceed the ampacity
of 75°C conductors.
See Selection Guide on next page
Web Resources
For dimension, CAD and 3-D drawings, visit:
Littelfuse.com/powrbloks
Hinged Plastic Covers
Catalog/
ordering
number
0LCH1321Z LD2xxx-1DIN / LS2xxx-1DIN 1
0LCH1322Z LD2xxx-2DIN / LS2xxx-2DIN 2
0LCH1323Z LD2xxx-3DIN / LS2xxx-3DIN 3
Note: Optional hinged covers snap on to blocks.
Clear Plastic Covers
Catalog/
ordering
number
LPBC02 LD0xxx-2 / LS0xxx-2 2
LPBC03 LD0xxx-3 / LS0xxx-3 3
LPBC21 LD2xxx-1 / LS2xxx-1 1
LPBC22 LD2xxx-2 / LS2xxx-2 2
LPBC23 LD2xxx-3 / LS2xxx-3 3
LPBC31 LD3xxx-1 / LS3xxx-1 1
LPBC32 LD3xxx-2 / LS3xxx-2 2
LPBC33 LD3xxx-3 / LS3xxx-3 3
LPBC41 LD4xxx-1 / LS4xxx-1 1
LPBC42 LD4xxx-2 / LS4xxx-2 2
LPBC43 LD4xxx-3 / LS4xxx-3 3
LPBC51 LD5xxx-1 / LS5xxx-1 1
LPBC52 LD5xxx-2 / LS5xxx-2 2
LPBC53 LD5xxx-3 / LS5xxx-3 3
Note: For installation of optional clear plastic covers, use the screws provided with each
cove r.
LFD/LFS Series (File: E309688)
LFD/LFS Series (File: 007316_0_000)
For use with
distribution/spliCer bloCk no.
For use with
distribution/spliCer bloCk no.
poles
poles
Littelfuse.com © 2013 Littelfuse POWR-GARD® Products
1 of 6
Rev: 062613
POWR-GARD® Blocks and Holders Datasheet
powr-bloks
™
Distribution Block Selection Guide
amp
rating
per
pole
115 1
115 2 1 Slotted #2 - #14 4 Slotted #10 - #18 2 0LD14002Z
115 3 1 5/32" Hex #2 - #14 4 5/64" Hex #10 - #18 2 LFD14003Z
115 4 1 Slotted #2 - #14 4 Slotted #10 - #18 2 0LD14004Z
175 2
175 3 1 3/16" Hex 2⁄0 - #14 6 1/8" Hex #4 - #14 1 LFD04013Z
175 2
175 3 1 5/16" Hex 2⁄0 - #14 4 Slotted #4 - #14 1 0LD04023Z
310 2
310 3 1 5/16" Hex 350mcm - #6 6 Slotted #4 - #14 1 0LD04043Z
175 1
175 2 1 3/16" Hex 2⁄0 - #14 4 1/8" Hex #4 - #14 3 LFD25702Z
175 3 1 3/16" Hex 2⁄0 - #14 4 1/8" Hex #4 - #14 3 LFD25703Z
175 1
175 2 1 3/16" Hex 2⁄0 - #14 4 Slotted #4 - #14 3 0LD29702Z
175 3 1 3/16" Hex 2⁄0 - #14 4 Slotted #4 - #14 3 0LD29703Z
335 1
335 2 1 5/16" Hex 400mcm - #6 4 Slotted #2 - #14 5 0LD35522Z
380 3 1 3/8" Hex 500mcm - #6 4 5/32" Hex #2 - #14 5 LFD35523Z
335 1
335 2 1 5/16" Hex 400mcm - #6 6 Slotted #2 - #14 5 0LD35532Z
380 3 1 3/8" Hex 500mcm - #6 6 5/32" Hex #2 - #14 5 LFD35533Z
350 1
350 2 2 5/16" Hex 2⁄0 - #14 6 Slotted #4 - #14 5 0LD35552Z
350 3 2 3/16" Hex 2⁄0 - #14 6 1/8" Hex #4 - #14 5 LFD35553Z
380 1
380 2 1 Slotted 500mcm - #4 6 5/32" Hex #2 - #14 5 0LD39532Z
380 3 1 Slotted 500mcm - #4 6 5/32" Hex #2 - #14 5 0LD39533Z
350 1
350 2 2 Slotted 2⁄0 - #14 6 1/8" Hex #4 - #14 5 0LD39552Z
350 3 2 Slotted 2⁄0 - #14 6 1/8" Hex #4 - #14 5 0LD39553Z
380 1
380 2 1 Slotted 500mcm - #4 6 Slotted #2 - #14 6 0LD45512Z
380 3 1 Slotted 500mcm - #4 6 Slotted #2 - #14 6 0LD45513Z
335 1
335 2 1 Slotted 400mcm - #6 8 Slotted #2 - #14 6 0LD45602Z
335 3 1 Slotted 400mcm - #6 8 Slotted #2 - #14 6 0LD45603Z
380 1
380 2 1 Slotted 500mcm - #4 12 Slotted #2 - #14 7 0LD55522Z
380 3 1 3/8" Hex 500mcm - #4 12 5/32" Hex #2 - #14 7 LFD55523Z
380 1
380 2 1 3/8" Hex 500mcm - #4 6 5/16" Hex 2⁄0 - #14 7 0LD55792Z
380 3 1 3/8" Hex 500mcm - #4 6 3/16" Hex 2⁄0 - #14 7 LFD55793Z
760 1
760 2 2 3/8" Hex 500mcm - #4 8 5/16" Hex 2⁄0 - #14 7 0LD55862Z
760 3 2 3/8" Hex 500mcm - #4 8 3/16" Hex 2⁄0 - #14 7 LFD55863Z
665 1
665 2
665 3
Note: AL = Aluminum / CU = Copper
Littelfuse.com © 2013 Littelfuse POWR-GARD® Products
poles
ConneCtor
AL
AL
AL
AL
AL
CU
AL
AL
AL
CU
CU
AL
AL
AL
AL
AL
AL
material
ConneCtor
line ConneCtion load ConneCtion
openings
per pole
lug tYpe wire range ConneCtor
1 Slotted #2 - #14 4 Slotted #10 - #18 2 0LD14001Z
1 5/16" Hex 2⁄0 - #14 6 Slotted #4 - #14 1 0LD04012Z
1 5/16" Hex 2⁄0 - #14 4 Slotted #4 - #14 1 0LD04022Z
1 5/16" Hex 350mcm - #6 6 Slotted #4 - #14 1 0LD04042Z
1 5/16" Hex 2⁄0 - #14 4 1/8" Hex #4 - #14 3 0LD25701Z
1 3/16" Hex 2⁄0 - #14 4 Slotted #4 - #14 3 0LD29701Z
1 5/16" Hex 400mcm - #6 4 Slotted #2 - #14 5 0LD35521Z
1 5/16" Hex 400mcm - #6 6 Slotted #2 - #14 5 0LD35531Z
2 5/16" Hex 2⁄0 - #14 6 Slotted #4 - #14 5 0LD35551Z
1 Slotted 500mcm - #4 6 5/32" Hex #2 - #14 5 0LD39531Z
2 Slotted 2⁄0 - #14 6 1/8" Hex #4 - #14 5 0LD39551Z
1 Slotted 500mcm - #4 6 Slotted #2 - #14 6 0LD45511Z
1 Slotted 400mcm - #6 8 Slotted #2 - #14 6 0LD45601Z
1 Slotted 500mcm - #4 12 Slotted #2 - #14 7 0LD55521Z
1 3/8" Hex 500mcm - #4 6 5/16" Hex 2⁄0 - #14 7 0LD55791Z
2 3/8" Hex 500mcm - #4 8 5/16" Hex 2⁄0 - #14 7 0LD55861Z
1
3/8" Hex
1 350mcm - #6
1
3/8” Hex
1 350mcm - #6
1
3/8” Hex
1 350mcm - #6
500mcm - #4
500mcm - #4
500mcm - #4
openings
per pole
lug tYpe wire range
4 Slotted 2⁄0 - #14 7 0LD55871Z
4 Slotted 2⁄0 - #14 7 0LD55872Z
4 Slotted 2⁄0 - #14 7 0LD55873Z
drawing
2 of 6
Catalog/
ordering
number
Rev: 062613
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