Through Bulkhead Terminal Blocks: Type - Feed-Through Terminal Block; Rating - Voltage - 500V; Rating - Amps - 76A; Wire Range - 20-4 AWG; Block Width - 12.1 mm; Number of Conductors - 2; Number of Levels - 1; Block Height - 39.7 mm; Block Length - 38.1 mm; Panel Thickness - 1-6 mm; Connection Type - External & Internal Screw; Connection Angle - Horizontal; Housing Material - Polyamide; Color - Gray; Manufacturer Series - HDFK Series