AC WORKS NEMA L15-30P 3-Phase 30 Amp 250V 4-Prong Locking Male Plug with UL, C-UL Approval ASL1530P-BK - The Home Depot
Why aren't there any 3-phase domestic power-outlets, or any interest in 3- phase for household (mains) power or anything relatively low-power? - Electrical Engineering Stack Exchange
4 Pin Power Plug, 3 Phase Industrial Connector Socket Set Surface Mounted Secure Versatile 32A 4 Pin Connector AC380V 415V for Industry Agriculture Airport Terminal: Amazon.com: Industrial & Scientific