Straight Blade Plugs: Plug Type - Straight Blade; Rating - Amps - 20A; Rating - Volts - 250V; Number of Poles - 2P; Number of Wires - 3W; Ground - Grounding; NEMA - 6-20P; Cord Diameter - 0.230 - 0.720 in.; Material - Nylon; Color - Black and Clear; Grade - Hospital Extra Hard Use; Manufacturer Brand - Pass and Seymour