AC WORKS CS8165 Male Plug Assembly 50-Amp 3-phase 480v-Volt NEMA 4-wire Grounding Heavy-duty Locking Plug, Black in the Plugs & Connectors department at Lowes.com
AC WORKS NEMA L15-30 Cord 25-ft 10 / 4-Prong Indoor/Outdoor Soow Heavy Duty Locking Extension Cord in the Extension Cords department at Lowes.com
50' 8/4 SOOW Explosion Proof Extension Cord - Class I II III - 30A 480V - Circuit Breaker Switch - Weatherproof: Amazon.com: Industrial & Scientific
8305 | Construction Electrical Products
AC Power Cord Locking L22-30 Plug to ROJ 10.5 Feet 25a/480v 10/5 STO