The HBL4573VY is a Valise® twist-lock plug designed for 15 ampere, 125/250/277 volts AC power distribution systems. It features a 2-pole, 3-wire grounding configuration with yellow nylon construction and accommodates cord diameters from 0.220" to 0.660" (5.6–16.8 mm). The plug is rated for NEMA L6-15P (15A 250V, 1.5 HP) and NEMA L7-15P (2 HP) applications and meets UL/CSA standards with IP20 suitability. This twist-lock design is commonly used in industrial, commercial, and temporary power applications where secure, reliable connections and corrosion resistance are required.