Power Distribution Block, Dual Rated, Line Conductor Range 500-4, Load Range 350-6, 4/0-6, 4 Ports Per Pole Line Side, 9 Ports Per Pole Load Side, 1 Pole, UL, CSA, Includes Cover Multiple taps - depending on product selected, up to twelve taps can be taken from one or two mains Range taking - provides tapping flexibility over a broad wire range Electro tin plated provides low contact resistance Dual-rated for aluminum and copper conductor except for PDBU-55-600-1 and PDB-55-600-1 rated for copper wire only Manufactured from high strength 6061-T6 aluminum alloy - suitable for use with either copper or aluminum conductors UL recognized rated 90 deg C and is CSA certified, rated for 600 VAC ensures reliability Provides low contact resistance Suitable for use with either copper or aluminum conductors Ensures reliability Range taking for reduced inventories and flexibility 3/8 in hex primary, 5/16 in hex secondary 90 deg C temperature rating Block W (4) box lug primary, (9) box lug secondary 4 AWG to 500 kcmil, primary and 6 AWG to 350 kcmil, 6 to 4/0 AWG secondary wire size Valox® insulating base UL assigned short circuit current rating Provides great flexibility in using the connector as an in-line splice or to reduce conductor size Additional 8-14 tap on PDBU-55-500-1,PDB-55-500-1, PDBU-55-600-1 and PDB-55-600-1 Specifications Color : Black Dimensions : 6-7/32 in L x 4 in W x 4-3/8 in H Finish : Electro-Plated Tin Primary Connections/Pole : 4 Secondary Connection/Pole : 9 Short Circuit Current Rating : 10 kA Type : Type PDB Dual Rated Mechanical Voltage Rating : 600 VAC Amperage Rating : 1520 A Number of Poles : 1 Wire Size : 4 AWG to 500 kcmil, 6 AWG to 350 kcmil, 6 to 4/0 AWG Material : Aluminum Alloy