POWR-BLOKS™ Distribution/Splicer Blocks and Covers SPECIFICATIONS Voltage Rating: 600V Amperage: 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 conductive aluminum, tin plated Copper: Highly conductive copper, tin plated Flammability Rating: 94V-0 Approvals: UL Recognized (File No. E171395) CSA Certified (File No. LR700111) NEW ORDERING INFORMATION Distribution Block Example Part No. Splicer Block Example Part No. POWR-BLOKS 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. APPLICATIONS Typical applications include heating, air conditioning and refrigeration systems, elevator 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 conductor 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 terminations 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. Distribution Block Covers Clear Plastic Covers Littelfuse Part Number For use with Power Distribution Block No. Littelfuse Part Number For use with Power Distribution Block No. LPBC0-2 LPBC0-3 LX0XXX-2 LX0XXX-3 LPBC2-1 LPBC2-2 LPBC2-3 LX2XXX-1 LX2XXX-2 LX2XXX-3 LCH132-1 LCH132-2 LCH132-3 LX2XXX-1DIN LX2XXX-2DIN LX2XXX-3DIN LPBC3-1 LPBC3-2 LPBC3-3 LX3XXX-1 LX3XXX-2 LX3XXX-3 LPBC4-1 LPBC4-2 LPBC4-3 LX4XXX-1 LX4XXX-2 LX4XXX-3 LPBC5-1 LPBC5-2 LPBC5-3 LX5XXX-1 LX5XXX-2 LX5XXX-3 NEW Littelfuse’s 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. Clear plastic covers are available for most blocks. New LX2XXX-DIN series blocks offer a hinged cover. 134 Hinged Covers POWR-BLOKS™ Distribution/Splicer Blocks and Covers Distribution Block Selection Guide Connector Configuration Mat’l Line Load Amp Rating Number per Pole of Poles Line Wire Range Load Openings Wire Range Openings per Pole per Pole Figure Littelfuse Catalog Number AL 115 115 115 115 1 2 3 4 #2 - #14 #2 - #14 #2 - #14 #2 - #14 1 1 1 1 #10 - #18 #10 - #18 #10 - #18 #10 - #18 4 4 4 4 2 2 2 2 LD1400-1 LD1400-2 LD1400-3 LD1400-4 AL 175 175 2 3 2/0 - #14 2/0 - #14 1 1 #4 - #14 #4 - #14 6 6 1 1 LD0401-2 LD0401-3 AL 175 175 2 3 2/0 - #14 2/0 - #14 1 1 #4 - #14 #4 - #14 4 4 1 1 LD0402-2 LD0402-3 NEW NEW AL 310 310 2 3 350mcm - #6 350mcm - #6 1 1 #4 - #14 #4 - #14 6 6 1 1 LD0404-2 LD0404-3 NEW NEW AL 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 3 3 3 LD2570-1 LD2570-2 LD2570-3 175 175 175 335 335 335 335 335 335 1 2 3 1 2 3 1 2 3 2/0 - #14 2/0 - #14 2/0 - #14 400mcm - #6 400mcm - #6 400mcm - #6 400mcm - #6 400mcm - #6 400mcm - #6 1 1 1 1 1 1 1 1 1 #4 - #14 #4 - #14 #4 - #14 #2 - #14 #2 - #14 #2 - #14 #2 - #14 #2 - #14 #2 - #14 4 4 4 4 4 4 6 6 6 3 3 3 5 5 5 5 5 5 LD2970-1 LD2970-2 LD2970-3 LD3552-1 LD3552-2 LD3552-3 LD3553-1 LD3553-2 LD3553-3 AL 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 5 5 5 LD3555-1 LD3555-2 LD3555-3 CU 380 380 380 1 2 3 500mcm - #4 500mcm - #4 500mcm - #4 1 1 1 #2 - #14 #2 - #14 #2 - #14 6 6 6 5 5 5 LD3953-1 LD3953-2 LD3953-3 NEW NEW NEW CU 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 5 5 5 LD3955-1 LD3955-2 LD3955-3 NEW NEW NEW AL 380 380 380 1 2 3 500mcm - #4 500mcm - #4 500mcm - #4 1 1 1 #2 - #14 #2 - #14 #2 - #14 6 6 6 6 6 6 LD4551-1 LD4551-2 LD4551-3 NEW NEW AL 335 335 335 1 2 3 400mcm - #6 400mcm - #6 400mcm - #6 1 1 1 #2 - #14 #2 - #14 #2 - #14 8 8 8 6 6 6 LD4560-1 LD4560-2 LD4560-3 AL 380 380 380 1 2 3 500mcm - #4 500mcm - #4 500mcm - #4 1 1 1 #2 - #14 #2 - #14 #2 - #14 12 12 12 7 7 7 LD5552-1 LD5552-2 LD5552-3 AL 380 380 380 1 2 3 500mcm - #4 500mcm - #4 500mcm - #4 1 1 1 2/0 - #14 2/0 - #14 2/0 - #14 6 6 6 7 7 7 LD5579-1 LD5579-2 LD5579-3 AL 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 7 7 7 LD5586-1 LD5586-2 LD5586-3 665 1 500mcm - #4 350mcm - #6 1 1 2/0 - #14 4 7 LD5587-1 NEW 665 2 500mcm - #4 350mcm - #6 1 1 2/0 - #14 4 7 LD5587-2 NEW 665 3 500mcm - #4 350mcm - #6 1 1 2/0 - #14 4 7 LD5587-3 NEW CU AL AL AL NEW NEW NEW NEW NEW NEW NEW NEW NEW 135 POWR-BLOKS™ Distribution/Splicer Blocks and Covers Distribution Block Selection Guide Connector Configuration Mat’l Line Load Amp Rating Number per Pole of Poles Line Load Wire Range Openings per Pole Wire Range Openings per Pole Figure Littelfuse Catalog Number 760 760 760 1 2 3 500mcm-#4 500mcm-#4 500mcm-#4 2 2 2 #4 - #14 #4 - #14 #4 - #14 12 12 12 7 7 7 LD5592-1 LD5592-2 LD5592-3 380 380 380 760 760 760 760 760 760 1 2 3 1 2 3 1 2 3 500mcm-#4 500mcm-#4 500mcm-#4 500mcm-#4 500mcm-#4 500mcm-#4 500mcm-#4 500mcm-#4 500mcm-#4 1 1 1 2 2 2 2 2 2 #2 - #14 #2 - #14 #2 - #14 2/0 - #14 2/0 - #14 2/0 - #14 #2 - #14 #2 - #14 #2 - #14 8 8 8 8 8 8 12 12 12 7 7 7 7 7 7 7 7 7 LD5594-1 LD5594-2 LD5594-3 LD5986-1 LD5986-2 LD5986-3 LD5992-1 LD5992-2 LD5992-3 NEW NEW NEW AL 175 175 175 175 1 1 3 Adder 2/0 - #14 2/0 - #14 2/0 - #14 2/0 - #14 1 1 1 1 #4 - #14 #4 - #14 #4 - #14 #4 - #14 4 4 4 4 4 4 4 4 LD2570-1DIN LD2570-2DIN LD2570-3DIN LD2570-ADIN NEW NEW NEW NEW AL 175 175 175 175 1 1 3 Adder 2/0 - #14 2/0 - #14 2/0 - #14 2/0 - #14 1 1 1 1 #4 - #14 #4 - #14 #4 - #14 #4 - #14 6 6 6 6 4 4 4 4 LD2580-1DIN LD2580-2DIN LD2580-3DIN LD2580-ADIN NEW NEW NEW NEW CU 175 175 175 175 1 1 3 Adder 2/0 - #14 2/0 - #14 2/0 - #14 2/0 - #14 1 1 1 1 #4 - #14 #4 - #14 #4 - #14 #4 - #14 4 4 4 4 4 4 4 4 LD2970-1DIN LD2970-2DIN LD2970-3DIN LD2970-ADIN NEW NEW NEW NEW AL AL CU CU 136 NEW NEW NEW NEW NEW NEW POWR-BLOKS™ Distribution/Splicer Blocks and Covers Splicer Block Selection Guide Connector Configuration Mat’l Line Load Line Load Amp Rating Number Figure per Pole of Poles Wire Range Openings Wire Range Openings per Pole per Pole Littelfuse Catalog Number 310 310 2 3 350mcm-#6 350mcm-#6 1 1 350mcm-#6 350mcm-#6 1 1 1 1 LS0303-2 LS0303-3 NEW NEW 115 115 115 115 1 2 3 4 #2 - #14 #2 - #14 #2 - #14 #2 - #14 1 1 1 1 #2 - #14 #2 - #14 #2 - #14 #2 - #14 1 1 1 1 2 2 2 2 LS1300-1 LS1300-2 LS1300-3 LS1300-4 NEW NEW NEW NEW CU 150 150 150 1 2 3 1/0 - #18 1/0 - #18 1/0 - #18 1 1 1 1/0 - #18 1/0 - #18 1/0 - #18 1 1 1 3 3 3 LS2121-1 LS2121-2 LS2121-3 NEW NEW NEW AL 115 115 115 1 2 3 #2 - #14 #2 - #14 #2 - #14 1 1 1 #2 - #14 #2 - #14 #2 - #14 1 1 1 3 3 3 LS2552-1 LS2552-2 LS2552-3 NEW NEW NEW AL 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 3 3 3 LS2572-1 LS2572-2 LS2572-3 AL 255 255 255 1 2 3 250mcm-#6 250mcm-#6 250mcm-#6 1 1 1 250mcm-#6 250mcm-#6 250mcm-#6 1 1 1 5 5 5 LS3123-1 LS3123-2 LS3123-3 255 255 255 1 2 3 250mcm-#6 250mcm-#6 250mcm-#6 1 1 1 250mcm-#6 250mcm-#6 250mcm-#6 1 1 1 5 5 5 LS3124-1 LS3124-2 LS3124-3 AL 310 310 310 1 2 3 350mcm-#6 350mcm-#6 350mcm-#6 1 1 1 350mcm-#6 350mcm-#6 350mcm-#6 1 1 1 5 5 5 LS3126-1 LS3126-2 LS3126-3 AL 420 420 420 1 2 3 600mcm-#4 600mcm-#4 600mcm-#4 1 1 1 600mcm-#4 600mcm-#4 600mcm-#4 1 1 1 6 6 6 LS4557-1 LS4557-2 LS4557-3 AL 620 620 620 1 2 3 350mcm-#4 350mcm-#4 350mcm-#4 2 2 2 350mcm-#4 350mcm-#4 350mcm-#4 2 2 2 7 7 7 LS5129-1 LS5129-2 LS5129-3 AL 760 760 760 1 2 3 500mcm-#4 500mcm-#4 500mcm-#4 2 2 2 500mcm-#4 500mcm-#4 500mcm-#4 2 2 2 7 7 7 LS5301-1 LS5301-2 LS5301-3 AL 175 175 175 175 1 2 3 A 2/0 - #14 2/0 - #14 2/0 - #14 2/0 - #14 1 1 1 1 2/0 - #14 2/0 - #14 2/0 - #14 2/0 - #14 1 1 1 1 4 4 4 4 LS2572-1DIN LS2572-2DIN LS2572-3DIN LS2572-ADIN NEW NEW NEW NEW CU 175 175 175 175 1 2 3 A 2/0 - #14 2/0 - #14 2/0 - #14 2/0 - #14 1 1 1 1 2/0 - #14 2/0 - #14 2/0 - #14 2/0 - #14 1 1 1 1 4 4 4 4 LS2972-1DIN LS2972-2DIN LS2972-3DIN LS2972-ADIN NEW NEW NEW NEW AL AL CU NEW NEW NEW NEW NEW NEW NEW 137 POWR-BLOKS™ Distribution/Splicer Blocks and Covers LX0XXX .218 x .375" .07" .218 x .375" .07" [5.5 x 9.5]SLOT [1.8] [5.5 x 9.5]SLOT [1.8] 2.90" 2.90" [73.7] [73.7] 1.00" 1.00" [25.4] [25.4] 3.38" 4.63" [85.8] [118] 3.52" .65 x .375" [89.3] 3.38" 4.73" .265 x .375" [121] [6.7 x 9.5] SLOT 4.13" 5.38" [104.8] [137] 2 POLE [85.8] [6.7 x 9.5] SLOT 3 POLE Figure 1 LX1XXX 1.52 [38.7] 3 POLE 2 POLE 1 POLE 4 POLE Figure 2 LX2XXX .31" .56" .56" .205 [5.2] DIA. HOLE [14] [14] 2.25" 2.25" [57.2] [57.2] 2.88" 2.88" [73.0] [73.0] .56" 1.78" .63" [14] [45.2] [16.1] 2.25" 2.88" [73.0] .62" [16] [16] 2 POLE 3 POLE Figure 3 138 [42] [57.2] .62" 1 POLE [69.9] 1.62" [49.2] [28.6] [7.9] 2.75" 1.94" 1.13" POWR-BLOKS™ Distribution/Splicer Blocks and Covers 2.42 [61.5] LX2XXX-DIN 2 POLE 1 POLE Figure 4 3 POLE LX3XXX 1.94" 3.47" [49.3] [88.1] ADDER 5.00" .97" .97" 1.53" .97" 1.53" [25] (25) [38.9] [25] [38.9] 3.38" (85.7) 4.00" 4.00" [102] [102] .31" [7.9] 1.17" [29.7] 1 POLE 2.61" [127.0] 3.38" 3.38" (85.7) [85.7] [66.2] 4.00" [101.6] .31" [7.9] 1.17" [29.7] 2 POLE 1.17" .31" [29.7] [7.9] Figure 5 3 POLE 139 POWR-BLOKS™ Distribution/Splicer Blocks and Covers LX4XXX [7.9] 6.04" 4.16" 2.28" .31" .31" 1.14" [29.0] 1.14" [7.9] [29.0] 4.13" 1.88" [7.9] [47.8] 4.13" [105] 2.92 (74.0) [153] [106] [57.9] .31" 1.14" 1.88" 1.88" [29.0] [47.8] [47.8] 4.13" [105] [105] 4.75" 4.75" 4.75" [121] [121] [121] 1 POLE 2 POLE 3 POLE Figure 6 LX5XXX 3.17" 5.88" [80.4] [149] 8.54" [217] 1.58" 1.58" 2.69" 1.58" 2.69" 2.30" 3.12" [40.2] [40.2] [68.2] [40.2] [68.2] [58.5] [79.2] 4.75" 4.75" [121] 4.75" [121] [121] 5.50" 5.50" [140] [140] 5.50" [140] .37" .37" .37" (9.5) [9.5] [9.5] 1 POLE 2 POLE 3 POLE Figure 7 140