HBL21415B - Hubbellock 30A 600V 3-Pole 4-Wire Grounding Male Plug

Industrial-Grade Power Connection

The Hubbell HBL21415B is a premium-grade male plug connector designed for the most demanding industrial environments. Part of the renowned Hubbellock® series, this device is engineered to ensure safety, durability, and electrical reliability in high-voltage applications. Rated for 30 Amperes and 600 Volts AC, it features a 3-Pole, 4-Wire Grounding configuration, making it suitable for three-phase power systems often found in manufacturing plants, shipyards, and heavy fabrication facilities.

The defining feature of this connector is its spring-loaded safety shutter mechanism (inherent to the mating receptacles) and the specific twist-lock design that prevents accidental disconnection. Unlike standard straight-blade plugs that can vibrate loose or be pulled out by tripping over a cord, the HBL21415B locks securely into place. The housing is constructed from high-impact nylon (Zytel), offering superior resistance to impact, heat, and chemical exposure compared to standard residential plugs. Its internal box terminals ensure a high-pressure, low-resistance connection for wire conductors, reducing heat buildup and prolonging the life of the connection.

This plug is designed to accommodate a wide range of cord diameters, from 0.700" to 1.200", providing versatility for different cable types including SOOW and W-type portable cords. Whether you are powering mobile machinery, conveyors, or high-amperage tools, the HBL21415B provides the secure interface necessary for operational continuity and safety compliance.