SolarEdge Energy Meter Line Connections

[solarken]

I would like to install a SolarEdge 3-phase revenue grade energy meter in a 480V system with a SolarEdge TRI Synergy 120kW inverter at the inverter location. The Inverter has 1/2 inch stud terminals for for L1,L2,L3 & N connections. I'm planning on a 200A 600V nonfusible safety switch as a PV system disconnect at the inverter as well. There will be a second fused safety switch at the other end near the point of interconnection. I would like to add the meter in an enclosure adjacent to the inverter and switch, on a DIN rail with 12AWG THHN for the meter L1,L2,L3,N voltage connections.

Is there any issue with removing the mechanical lugs from the safety switch on either the line or load side, and landing the AC conductors on the lug stud/bolt using compression terminals, along with the 12AWG meter voltage conductors with similar compression terminals? I would install the CT's in the disconnect as well. The meter can be DIN rail mounted if I mount the rail in the switch.

Alternatively, I could run the meter voltage leads to the inverter and land them via 1/2" Hole compression lugs, over the same studs for the 4/0 Line connections to the inverter. I could add midget fuses (like 2A or so) inline with the 10AWG meter voltage sense conductors if needed, either within the inverter enclosure, or on din rail fuseholders in the meter enclosure, but not sure that is necessary.

Any thoughts?

 

[Deltaforce]

Your proposal terminate two conductors per lugs unsound if not listed
Also check with manual and ahj before proceed

 

[solarken]

Your proposal terminate two conductors per lugs unsound if not listed
Also check with manual and ahj before proceed

The lugs are not listed for two conductors. And for lugs that are listed for two, at least from what I have seen, they typically specify a narrower range of conductor sizes. In this case I have 4/0 and 12AWG.