The HUBBELL HBL2511 is a heavy-duty locking plug designed for use in industrial applications. With a current rating of 20A and a voltage rating of 120/208V, this plug offers a reliable and secure connection to power sources. Its L21-20P configuration ensures compatibility with respective receptacles, while its black and white color scheme adds a sleek and professional look. Suitable for three-phase power systems, the HBL2511 provides reliable performance and durability for various electrical setups.