Fronius IG Plus 3.8 Inverter

lukey

I hope someone can help me settle a bet. Is it possible to connect two Fronius IG Plus 3.8 inverters up to a 277V three phase?

Solar Guppy

Re: Fronius IG Plus 3.8 Inverter

Appears 277 is supported

http://www.fronius.com/cps/rde/xchg/SID-888830AC-2C2BF8E6/fronius_usa/hs.xsl/2714_1485.htm

The real question is will the local inspectors or power company sign off on it. Another poster has issues with separate inverters and ( simulated ) failure of one of the 3 legs.

http://forum.solar-electric.com/showthread.php?t=4760

the power company failed the proposed install as the remaining active legs the GT inverters were still running when the 3rd leg as disconnected.

Not sure if there is a argument proof answer on this