Rotary Phase Converter for 2.5HP Very Hard Loads, 575V 1PH to 3PH, 1.33 Amps Output, 7.5HP Idler, NEMA 1 < $50 give these a try

give these a try

but with a new addition of being programmable with MicroPython (32KB of memory available for it)

Protection Type Overload Protection Plug/Connector Type IEC 60309 60A BLUE (3P+E) Phase Three Phase Receptacle Type IEC 60320 C19 IEC 60320 C13 PDU Type Monitored Receptacle Detail 42 x IEC 60320 C13 6 x IEC 60320 C19 Input Voltage 230 V AC Output Voltage 208 V AC 200 V AC 200 V AC 208 V AC 208 V AC 200 V AC 240 V AC 240 V AC 240 V AC Input Current 35 A Power Rating (Watt) 14

98 Operating Temperature Range: -30°C to +65°C Housing Material: Die Cast Aluminum Lens Material: Tempered Glass Mounting: Tripod w/ Pivot Wiring: 15-Meter 16/3 SOOW Cable with Hazloc Cord Cap Cord Cap: 16A Hazloc [24V]

* 2 washer rings

Rotary Phase Converter for 2.5HP Very Hard Loads, 575V 1PH to 3PH, 1.33 Amps Output, 7.5HP Idler, NEMA 1 < $50 give these a trySpecifications Additional Information MTPC VHD RB 575V 7. 5HP 2. 5HP N1 Rotary Phase Converter Ratings Approvals Unit Type: Rotary Phase Converter Indoor Use (NEMA 1) Phase Conversion: Single Phase to Three Phase Built in Motor Starter Kilowatt Rating: 5. 6 KW Start Stop Push Button Switch Kilo Volt Amp Rating: 7. 5 KVA Accurate Voltage Balancing Idle Motor Horse Power: 7. 5 HP Power Indicator Light Single Phase Voltage Input: 575V Made in the USA