The HUBBELL HBL3763C Twist-Lock Plug is engineered for demanding industrial applications requiring a robust and reliable power connection. Its super tough nylon housing provides excellent impact resistance, while the stainless steel shroud protects the contacts and prevents mismating. The heavy-duty two-piece external cord clamp ensures maximum strain relief, and the box terminal with hex socket threaded slug allows for high clamping pressure on conductors without damaging strands. The thermoplastic polyester interior offers heat resistance and impact strength, making it suitable for a wide range of environments. This plug is listed to UL 498 and certified to CSA C22.2 No.42, ensuring safety and compliance.