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| Blocks and Holders POWR-BLOKSTM Distribution/Splicer Blocks and Covers 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 75C insulated conductors per NEC Table 310.16. If 60C insulated conductors are used, load must not exceed the ampacity of 60C conductors. Use of conductors rated in excess of 75C is permitted (for example 90C), however, load must not exceed the ampacity of 75C conductors. Ordering Information 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. Distribution Block Example Part No. Splicer Block Example Part No. 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. Note: Aluminum blocks can use copper or aluminum wire; copper blocks can only use copper wire. Blocks and Holders Specifications Voltage Rating: Amperage: Material: 600V Based on NEC Table 310.16, using 75C copper wire Phenolic rated at 150C and Thermoplastic rated at 125C (LD1400 and LS1300 series only) Connector: Flammability Rating: Approvals: Standard: Highly conductive aluminum, tin plated Copper: Highly conductive copper, tin plated 94V-0 UL Recognized (File No. E171395) CSA Certified (File No. LR700111) (c) 2005 Littelfuse * POWR-GARDTM Products Catalog www.littelfuse.com 137 Blocks and Holders POWR-BLOKSTM Distribution/Splicer Blocks and Covers Distribution Block Covers Hinged Plastic Covers Littelfuse Part Number LCH132-1 LCH132-2 LCH132-3 For use with Distribution/Splicer Block No. LD2xxx-1DIN / LS2xxx-1DIN LD2xxx-2DIN / LS2xxx-2DIN LD2xxx-3DIN / LS2xxx-3DIN Number of Poles 1 2 3 Note: Optional hinged covers snap on to blocks. Littelfuse 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. Clear plastic covers are available for most blocks. New Lx2xxx-xDIN series blocks offer a hinged cover. To order protective covers, match the number of poles for the block to the cover. Blocks and Holders Clear Plastic Covers Littelfuse For use with Number Part Number Distribution/Splicer Block No. of Poles LPBC0-2 LD0xxx-2 / LS0xxx-2 2 LPBC0-3 LD0xxx-3 / LS0xxx-3 3 LPBC2-1 LD2xxx-1 / LS2xxx-1 1 LPBC2-2 LD2xxx-2 / LS2xxx-2 2 LPBC2-3 LD2xxx-3 / LS2xxx-3 3 LPBC3-1 LD3xxx-1 / LS3xxx-1 1 LPBC3-2 LD3xxx-2 / LS3xxx-2 2 LPBC3-3 LD3xxx-3 / LS3xxx-3 3 LPBC4-1 LD4xxx-1 / LS4xxx-1 1 LPBC4-2 LD4xxx-2 / LS4xxx-2 2 LPBC4-3 LD4xxx-3 / LS4xxx-3 3 LPBC5-1 LD5xxx-1 / LS5xxx-1 1 LPBC5-2 LD5xxx-2 / LS5xxx-2 2 LPBC5-3 LD5xxx-3 / LS5xxx-3 3 Note: For installation of optional clear plastic covers, use the screws provided with each cover. 138 www.littelfuse.com (c) 2005 Littelfuse * POWR-GARDTM Products Catalog Blocks and Holders POWR-BLOKSTM Distribution/Splicer Blocks and Covers Distribution Block Selection Guide Connector Configuration Mat'l AL Line Load Amp Rating per Pole 115 115 115 115 175 175 175 175 310 310 175 175 175 175 175 175 335 335 335 335 335 335 350 350 350 380 380 380 350 350 350 380 380 380 335 335 335 380 380 380 380 380 380 760 760 760 665 AL 665 665 Number of Poles 1 2 3 4 2 3 2 3 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 Line Wire Range #2 - #14 #2 - #14 #2 - #14 #2 - #14 20 - #14 20 - #14 20 - #14 20 - #14 350mcm - #6 350mcm - #6 20 - #14 20 - #14 20 - #14 20 - #14 20 - #14 20 - #14 400mcm - #6 400mcm - #6 400mcm - #6 400mcm - #6 400mcm - #6 400mcm - #6 20 - #14 20 - #14 20 - #14 500mcm - #4 500mcm - #4 500mcm - #4 20 - #14 20 - #14 20 - #14 500mcm - #4 500mcm - #4 500mcm - #4 400mcm - #6 400mcm - #6 400mcm - #6 500mcm - #4 500mcm - #4 500mcm - #4 500mcm - #4 500mcm - #4 500mcm - #4 500mcm - #4 500mcm - #4 500mcm - #4 500mcm - #4 350mcm - #6 500mcm - #4 350mcm - #6 500mcm - #4 350mcm - #6 Openings per Pole 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 1 1 1 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 1 1 1 1 1 1 Load Wire Range #10 - #18 #10 - #18 #10 - #18 #10 - #18 #4 - #14 #4 - #14 #4 - #14 #4 - #14 #4 - #14 #4 - #14 #4 - #14 #4 - #14 #4 - #14 #4 - #14 #4 - #14 #4 - #14 #2 - #14 #2 - #14 #2 - #14 #2 - #14 #2 - #14 #2 - #14 #4 - #14 #4 - #14 #4 - #14 #2 - #14 #2 - #14 #2 - #14 #4 - #14 #4 - #14 #4 - #14 #2 - #14 #2 - #14 #2 - #14 #2 - #14 #2 - #14 #2 - #14 #2 - #14 #2 - #14 #2 - #14 20 - #14 20 - #14 20 - #14 20 - #14 20 - #14 20 - #14 20 - #14 20 - #14 20 - #14 Openings per Pole 4 4 4 4 6 6 4 4 6 6 4 4 4 4 4 4 4 4 4 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 8 8 8 12 12 12 6 6 6 8 8 8 4 4 4 Figure 2 2 2 2 1 1 1 1 1 1 3 3 3 3 3 3 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 6 6 6 6 6 6 7 7 7 7 7 7 7 7 7 7 7 7 Littelfuse Catalog Number LD1400-1 LD1400-2 LD1400-3 LD1400-4 LD0401-2 LD0401-3 LD0402-2 LD0402-3 LD0404-2 LD0404-3 LD2570-1 LD2570-2 LD2570-3 LD2970-1 LD2970-2 LD2970-3 LD3552-1 LD3552-2 LD3552-3 LD3553-1 LD3553-2 LD3553-3 LD3555-1 LD3555-2 LD3555-3 LD3953-1 LD3953-2 LD3953-3 LD3955-1 LD3955-2 LD3955-3 LD4551-1 LD4551-2 LD4551-3 LD4560-1 LD4560-2 LD4560-3 LD5552-1 LD5552-2 LD5552-3 LD5579-1 LD5579-2 LD5579-3 LD5586-1 LD5586-2 LD5586-3 LD5587-1 LD5587-2 LD5587-3 AL AL AL AL CU AL AL AL Blocks and Holders CU CU AL AL AL AL AL (c) 2005 Littelfuse * POWR-GARDTM Products Catalog www.littelfuse.com 139 Blocks and Holders POWR-BLOKSTM Distribution/Splicer Blocks and Covers Distribution Block Selection Guide Connector Configuration Mat'l Line Load Amp Rating per Pole 760 AL 760 760 380 AL 380 380 760 CU 760 760 760 CU 760 760 AL 175 175 175 175 175 175 175 175 175 175 175 175 Number of Poles 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 Adder 1 2 3 Adder 1 2 3 Adder Line Wire Range 500mcm-#4 500mcm-#4 500mcm-#4 500mcm-#4 500mcm-#4 500mcm-#4 500mcm-#4 500mcm-#4 500mcm-#4 500mcm-#4 500mcm-#4 500mcm-#4 20 - #14 20 - #14 20 - #14 20 - #14 20 - #14 20 - #14 20 - #14 20 - #14 20 - #14 20 - #14 20 - #14 20 - #14 Openings per Pole 2 2 2 1 1 1 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 Load Wire Range #4 - #14 #4 - #14 #4 - #14 #2 - #14 #2 - #14 #2 - #14 20 - #14 20 - #14 20 - #14 #2 - #14 #2 - #14 #2 - #14 #4 - #14 #4 - #14 #4 - #14 #4 - #14 #4 - #14 #4 - #14 #4 - #14 #4 - #14 #4 - #14 #4 - #14 #4 - #14 #4 - #14 Openings per Pole 12 12 12 8 8 8 8 8 8 12 12 12 4 4 4 4 6 6 6 6 4 4 4 4 Figure 7 7 7 7 7 7 7 7 7 7 7 7 4 4 4 4 4 4 4 4 4 4 4 4 Littelfuse Catalog Number LD5592-1 LD5592-2 LD5592-3 LD5594-1 LD5594-2 LD5594-3 LD5986-1 LD5986-2 LD5986-3 LD5992-1 LD5992-2 LD5992-3 LD2570-1DIN LD2570-2DIN LD2570-3DIN LD2570-ADIN LD2580-1DIN LD2580-2DIN LD2580-3DIN LD2580-ADIN LD2970-1DIN LD2970-2DIN LD2970-3DIN LD2970-ADIN AL CU Blocks and Holders 140 www.littelfuse.com (c) 2005 Littelfuse * POWR-GARDTM Products Catalog Blocks and Holders POWR-BLOKSTM Distribution/Splicer Blocks and Covers Splicer Block Selection Guide Connector Configuration Mat'l Line Load Amp Rating per Pole 310 AL 310 115 115 115 115 150 CU 150 150 115 AL 115 115 175 AL 175 175 255 AL 255 255 255 CU 255 255 310 AL 310 310 420 AL 420 420 620 AL 620 620 760 AL 760 760 AL 175 175 175 175 175 175 175 175 3 1 2 3 4 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 A 1 2 3 A 350mcm-#6 #2 - #14 #2 - #14 #2 - #14 #2 - #14 10 - #18 10 - #18 10 - #18 #2 - #14 #2 - #14 #2 - #14 20 - #14 20 - #14 20 - #14 250mcm-#6 250mcm-#6 250mcm-#6 250mcm-#6 250mcm-#6 250mcm-#6 350mcm-#6 350mcm-#6 350mcm-#6 600mcm-#4 600mcm-#4 600mcm-#4 350mcm-#4 350mcm-#4 350mcm-#4 500mcm-#4 500mcm-#4 500mcm-#4 20 - #14 20 - #14 20 - #14 20 - #14 20 - #14 20 - #14 20 - #14 20 - #14 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 1 1 1 1 1 1 1 1 350mcm-#6 #2 - #14 #2 - #14 #2 - #14 #2 - #14 10 - #18 10 - #18 10 - #18 #2 - #14 #2 - #14 #2 - #14 20 - #14 20 - #14 20 - #14 250mcm-#6 250mcm-#6 250mcm-#6 250mcm-#6 250mcm-#6 250mcm-#6 350mcm-#6 350mcm-#6 350mcm-#6 600mcm-#4 600mcm-#4 600mcm-#4 350mcm-#4 350mcm-#4 350mcm-#4 500mcm-#4 500mcm-#4 500mcm-#4 20 - #14 20 - #14 20 - #14 20 - #14 20 - #14 20 - #14 20 - #14 20 - #14 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 2 2 2 2 3 3 3 3 3 3 3 3 3 5 5 5 5 5 5 5 5 5 6 6 6 7 7 7 7 7 7 4 4 4 4 4 4 4 4 LS0303-3 LS1300-1 LS1300-2 LS1300-3 LS1300-4 LS2121-1 LS2121-2 LS2121-3 LS2552-1 LS2552-2 LS2552-3 LS2572-1 LS2572-2 LS2572-3 LS3123-1 LS3123-2 LS3123-3 LS3124-1 LS3124-2 LS3124-3 LS3126-1 LS3126-2 LS3126-3 LS4557-1 LS4557-2 LS4557-3 LS5129-1 LS5129-2 LS5129-3 LS5301-1 LS5301-2 LS5301-3 LS2572-1DIN LS2572-2DIN LS2572-3DIN LS2572-ADIN LS2972-1DIN LS2972-2DIN LS2972-3DIN LS2972-ADIN Blocks and Holders Number of Poles 2 Line Wire Range 350mcm-#6 Openings per Pole 1 Load Wire Range 350mcm-#6 Openings per Pole 1 Figure Littelfuse Catalog Number LS0303-2 1 AL CU (c) 2005 Littelfuse * POWR-GARDTM Products Catalog www.littelfuse.com 141 Blocks and Holders POWR-BLOKSTM Distribution/Splicer Blocks and Covers LX0XXX .07" [1.8] .218 x .375" [5.5 x 9.5]SLOT .07" [1.8] .218 x .375" [5.5 x 9.5]SLOT 2.90" [73.7] 2.90" [73.7] 1.00" [25.4] 1.00" [25.4] 3.38" 3.52" [89.3] [85.8] 4.63" .65 x .375" [6.7 x 9.5] SLOT 4.73" [121] [118] .265 x .375" 3.38" [85.8] [104.8] 4.13" 5.38" [137] [6.7 x 9.5] SLOT 2 POLE 3 POLE Figure 1 LX1XXX 1.52 [38.7] Blocks and Holders 1 POLE 2 POLE 3 POLE 4 POLE Figure 2 LX2XXX [7.9] .31" [28.6] 1.13" .56" [14] [49.2] 1.94" 2.75" 1.62" [42] .205 [5.2] DIA. HOLE [16.1] [69.9] .56" [14] .63" .56" [14] [45.2] 1.78" [57.2] [73.0] 2.25" [73.0] [57.2] 2.25" 2.88" [57.2] [73.0] 2.25" 2.88" 2.88" .62" [16] .62" [16] 1 POLE 2 POLE 3 POLE Figure 3 142 www.littelfuse.com (c) 2005 Littelfuse * POWR-GARDTM Products Catalog Blocks and Holders POWR-BLOKSTM Distribution/Splicer Blocks and Covers LX2XXX-XDIN 2.42 [61.5] 1 POLE 2 POLE Blocks and Holders 3 POLE ADDER Figure 4 LX3XXX .97" [25] 1.94" [49.3] .97" (25) [88.1] 3.47" 1.53" [38.9] 5.00" .97" [25] 1.53" [38.9] [127.0] [66.2] 2.61" 4.00" [102] (85.7) 3.38" 4.00" [102] (85.7) 3.38" [101.6] 4.00" [85.7] 3.38" [7.9] .31" 1.17" [29.7] [7.9] .31" 1.17" [29.7] [7.9] .31" 3 POLE 1.17" [29.7] 1 POLE 2 POLE Figure 5 (c) 2005 Littelfuse * POWR-GARDTM Products Catalog www.littelfuse.com 143 Blocks and Holders POWR-BLOKSTM Distribution/Splicer Blocks and Covers LX4XXX [7.9] .31" 2.28" [57.9] 4.16" [7.9] 6.04" [7.9] 1.14" [29.0] .31" [106] 1.14" [29.0] [47.8] 1.88" .31" 1.14" [29.0] [153] 1.88" [47.8] 1.88" [47.8] 2.92 (74.0) 4.13" [105] 4.13" [105] 4.13" [105] 4.75" [121] 4.75" [121] 4.75" [121] 1 POLE 2 POLE 3 POLE Figure 6 LX5XXX 1.58" [40.2] [80.4] 3.17" 1.58" [40.2] 5.88" 2.69" [68.2] [149] 8.54" [217] 1.58" [40.2] [68.2] 2.69" [58.5] 2.30" [79.2] 3.12" 4.75" [121] 4.75" [121] 4.75" [121] 5.50" [140] 5.50" [140] 5.50" [140] Blocks and Holders (9.5) .37" [9.5] .37" 2 POLE [9.5] .37" 3 POLE 1 POLE Figure 7 144 www.littelfuse.com (c) 2005 Littelfuse * POWR-GARDTM Products Catalog |
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