Receptacle, 20 Amps, 520R NEMA Configuration, Number of Poles 2, Number of Wires 3, Voltage 125VAC, Phase 1, HP 1, Color Red, Duty Extra Heavy, Grade Hospital, Material of Construction Impact Modified PBT/Reinforced PET, Wiring Method Back and Side, IP Rating 20, Description Finder Groove, Grounding, Standards UL/CSA/NEMA WD1 and WD6 Also known as -HUBBELL WIRING DEVICEKELLEMS HBL8310R Receptacle,Single,20A,RD,Hospital Grade-Hubbell HBL8310R Sgl Rcpt Hg 20A 125V 520R Rd