Product Data Sheet 144X551 Replace "x" with 1, 2, or 3 for number of poles Power Terminal Block 380 Amps 600 Volts AC/DC Wire Range * * Line: (1) 500 kcmil - #4 AWG Load: (6) #2 - #14 AWG Electrical Ratings * * * * * 380 amps 600V per UL 1059 & CSA 22.2 No.158, Class B & C requirements Short circuit current ratings (SCCR): See SCCR section below for specifications. CU7AL - 75C connector terminal rating with copper or aluminum wire Factory & Field Wiring Agency Compliance * * * UR - UL Recognized Terminal Block, Evaluated to UL 1059, File No.XCFR2.E62806 CSA - certifed to C22.2 No. 158, File No. LR19766 (wire classes B & C only) CE compliant to IEC 60947-7-1 Material Information * * * * * Insulator base: * Phenolic * Flammability rating of insulator base UL94V0 * Insulator base temperature rating: -40C to 150C (UL RTI) Connector: aluminum, tin plated Terminal set screws: aluminum, tin plated Connector mounting screws: steel, zinc plated RoHS compliant A Regal Brand www.marathonsp.com 1 Termination Specifications Line Side * * * * Wires / Terminal Wire Class (UL) 1 500 kcmil 42.4 N*m (375 lbf*in) 1 B, C 400 - 2 42.4 N*m (375 lbf*in) 1 B, C, G, H, I (DLO) 4 42.4 N*m (375 lbf*in) 1 B, C (CU Stranded) Aluminum wire range: 500 kcmil - #4 AWG Wire strip length: 1 5/16in. (33mm) Terminal screw drive: 3/8 in. (9.5mm) hex Load Side * * * Torque Wire Size 2 AWG 4-6 5.6 N*m (50 lbf*in) 5.1 N*m (45 lbf*in) Wires / Terminal 1 1 8 10 4.5 N*m (40 lbf*in) 4 N*m (35 lbf*in) 1-2 2 1-2 B, C, G, H, I (DLO) B, C, I (DLO) 12 - 14 4 N*m (35 lbf*in) 1-4 B, C 1-2 I (DLO) Wire Size (CU Stranded) Torque Wire Class (UL) 1 B, C B, C, G, H, I (DLO) Solid copper wire range: #10 - 14 Aluminum wire range: #2 - #8 AWG Wire strip length (load side): Top Row: 3/4 in. (19mm) Bottom Row: 1 3/16 in (30mm) Terminal screw drive: slotted 1 For information on copper stranded wire classes please visit: http://www.marathonsp.com/flexible-stranded-wire.php 2 Multiple wire rating applies to classes B, C, & I only www.marathonsp.com 2 PDS 0074 REV-D 01/13/17 Short Circuit Current Ratings (SCCR) * * * The suitable conductor ranges are limited to the table values only for achieving the SCCR in excess of the default rating of 10,000A. Other conductor combinations within the "Terminal Specifications" noted are suitable for achieving a SCCR of 10,000A (the default rating of terminal blocks). Enclosure size - Investigated with a minimum 16x12x6 enclosure. Use in smaller enclosures is subject to end use evaluation. SCCR With Fuses Wire Class B, C B, C G, H, I (*) Suitable Conductors Max Overcurrent Protection Fuse Required Amp Rating / Class Line Load J T 500 - 3/0 500 - 4 350 - 2 500 - 4 2-8 2 - 10 4 - 14 2 - 14 500 200 150 500 200 150 RK1 RK5 G CC 400 200 200 100 100 30 None 60 60 60 30 30 30 SCCR RMS Sym. Amps 600V. Max 100,000 100.000 100,000 10,000 * Any wire class evaluated (see terminal specification section) Installation & Accessories * Mounting (Panel): * For use with #10 fastener. * Torque mounting fastener to 25-30 lbf*in (2.8 - 3.4 N*m). * Covers: * Flat covers available upon request * Catalog Number: CH144x (replace "x" with number of poles) * Covers are clear polycarbonate * Accessory covers are not intended to provide insulation for electrical spacings. * Marker Strip: white vinyl strip with mounting screws available. * Printing options available, consult customer service for specifications. www.marathonsp.com 3 PDS 0074 REV-D 01/13/17 Drawing www.marathonsp.com 4 PDS 0074 REV-D 01/13/17