Power Distribution Blocks: Block Type - Power Distribution; Poles Per Block - 1; Openings Per Pole, Primary - 1; Conductor Size - Primary - 400-6; Openings Per Pole, Secondary - 6; Conductor Size - Secondary - 2-14; Conductor Material - CU/AL; Material - Housing - Phenolic; Material - Connector - Aluminum; Rating - Voltage - 600V; Rating - Amps - 335; Optional Cover - CC143-1; Manufacturer Series - 143