The HBL2741SW is a 3-pole, 4-wire Twist-Lock® watertight safety-shroud plug rated for 30A and 3-phase 600V AC. It features a durable black PBT housing with an impact-resistant shroud to protect the brass blades from damage. This plug accommodates cord diameters from .350" to 1.150" and has a superior cord grip design to protect terminations from strain. Certified for current interrupting at its full rated current, its UL Type 4X environmental seal ensures the connection is protected while in use. This device is ideal for industrial applications where a robust, secure, and watertight connection is required.