Bibaja's PLC277 features:
Integrated Phase Coupling
8 Screw Terminals for 12AWG to 24AWG wire
Compact 3-Module DIN Rail Enclosure
277VAC (305VAC max) AC Mains Connection
Low voltage PLC coupler connection
The PLC277 is qualified for use with certain Echelon i.LON products. Your i.LON must have an external coupler interface to use the PLC277. Check with your Echelon sales representative to make sure you order the correct model for use with the 3-phase external coupler.