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
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L21-30P to 3 x L6-30R 3-Phase Splitter Power Cord – PDU Whips
IEC industrial standard
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Three Phase Electrical Wiring Installation in Home - NEC & IEC
AC WORKS Locking Style Replacement Wiring Male Plug (L15-20 20A 3-Phase 250V) - Amazon.com