Through Bulkhead Terminal Blocks: Type - Feed-Through Terminal Block; Rating - Voltage - 1000V; Rating - Amps - 57A; Wire Range - 20-6 AWG; Block Width - 10.1 mm; Number of Conductors - 2; Number of Levels - 1; Block Height - 31.2 mm; Block Length - 35 mm; Connection Type - External & Internal Screw; Connection Angle - Horizontal; Housing Material - Polyamide; Color - Gray; Manufacturer Series - HDFK Series