emonVS 3-phase: no plug

Note: This 3-phase emonVS will also work on single-phase 

Provide power supply and AC voltage sample to emonTx V4

• INPUT: 100-400V (50-60Hz)
• DC OUTPUT: 5V⎓ 2A (USB-C)
• AC OUTPUT: 125 - 316 mV (50-60Hz)
• Accuracy: 0.4%
• OPERATING TEMP: -40°C to 40°C
• WEEE: WEE/KG4239XX
• EMC: 2014/30/EU
• LVD: 2014/35/EU

Documentation:

https://github.com/openenergymonitor/emonVoltageSense