The HBL2431ST is a Twist-Lock® Insulgrip® plug from the Hubbell Edge series, engineered for fast and secure electrical connections. It is rated for 20 amps and 3-phase 480V, utilizing a 4-pole, 5-wire configuration. Its primary feature is the innovative screwless spring termination system that significantly reduces installation time and ensures a reliable connection that resists loosening from vibration or temperature cycling. This cord-mounted plug is ideal for demanding applications in industrial manufacturing, OEM equipment, and entertainment power distribution systems where performance and efficiency are critical.