POWR-BLOKS™
Distribution/Splicer Blocks and Covers
Distribution Block Selection Guide
Connector
Line
Load
Amp
Rating
per Pole
Littelfuse
Part
Number
Refer to
Dimension
Drawing
Configuration
Number
of Poles
Openings
per Pole
Openings
per Pole
Line
Load
Wire Range
Wire Range
175
175
2
3
2/0 - #14
2/0 - #14
1
1
#4 - #14
#4 - #14
6
6
LD0401-2
LD0401-3
Fig. 1
Fig. 2
175
175
175
1
2
3
2/0 - #14
2/0 - #14
2/0 - #14
1
1
1
#4 - #14
#4 - #14
#4 - #14
4
4
4
LD2570-1
LD2570-2
LD2570-3
335
335
335
1
2
3
400mcm - #6
400mcm - #6
400mcm - #6
1
1
1
#2 - #14
#2 - #14
#2 - #14
4
4
4
LD3552-1
LD3552-2
LD3552-3
Fig. 3
Fig. 3
335
335
335
1
2
3
400mcm - #6
400mcm - #6
400mcm - #6
1
1
1
#2 - #14
#2 - #14
#2 - #14
6
6
6
LD3553-1
LD3553-2
LD3553-3
350
350
350
1
2
3
2/0 - #14
2/0 - #14
2/0 - #14
2
2
2
#4 - #14
#4 - #14
#4 - #14
6
6
6
LD3555-1
LD3555-2
LD3555-3
Fig. 3
Fig. 4
Fig. 4
380
3
500mcm - #4
1
#2 - #14
6
LD4551-3
335
335
335
1
2
3
400mcm - #6
400mcm - #6
400mcm - #6
1
1
1
#2 - #14
#2 - #14
#2 - #14
8
8
8
LD4560-1
LD4560-2
LD4560-3
380
380
380
1
2
3
500mcm - #4
500mcm - #4
500mcm - #4
1
1
1
#2 - #14
#2 - #14
#2 - #14
12
12
12
LD5552-1
LD5552-2
LD5552-3
Fig. 5
Fig. 5
Fig. 5
BLOCKS
AND
HOLDERS
380
3
500mcm - #4
1
2/0 - #14
6
LD5579-3
760
760
760
1
2
3
500mcm - #4
500mcm - #4
500mcm - #4
2
2
2
2/0 - #14
2/0 - #14
2/0 - #14
8
8
8
LD5586-1
LD5586-2
LD5586-3
760
760
760
1
2
3
500mcm - #4
500mcm - #4
500mcm - #4
2
2
2
#4 - #14
#4 - #14
#4 - #14
12
12
12
LD5592-1
LD5592-2
LD5592-3
Fig. 5
Splicer Block Selection Guide
115
115
115
1
2
3
#2 - #14
#2 - #14
#2 - #14
1
1
1
#2 - #14
#2 - #14
#2 - #14
1
1
1
LS2552-1
LS2552-2
LS2552-3
Fig. 2
Fig. 2
Fig. 3
Fig. 3
175
175
175
1
2
3
2/0 - #14
2/0 - #14
2/0 - #14
1
1
1
2/0 - #14
2/0 - #14
2/0 - #14
1
1
1
LS2572-1
LS2572-2
LS2572-3
255
255
255
1
2
3
250mcm - #6
250mcm - #6
250mcm - #6
1
1
1
250mcm - #6
250mcm - #6
250mcm - #6
1
1
1
LS3123-1
LS3123-2
LS3123-3
310
310
310
1
2
3
350mcm - #6
350mcm - #6
350mcm - #6
1
1
1
350mcm - #6
350mcm - #6
350mcm - #6
1
1
1
LS3126-1
LS3126-2
LS3126-3
420
620
1
3
600mcm - #4
350mcm - #4
1
2
600mcm - #4
350mcm - #4
1
2
LS4557-1
LS5129-3
Fig. 4
Fig. 5
760
760
760
1
2
3
500mcm - #4
500mcm - #4
500mcm - #4
2
2
2
500mcm - #4
500mcm - #4
500mcm - #4
2
2
2
LS5301-1
LS5302-2
LS5301-3
Fig. 5
103