I had the same thought and not a clear answer like you. The best answer I can give you is you should have neutral and ground bonded in your main panel and in this instance based on your system designed you should do so. Remove the neutral ground bonding screw if present.Hi, All. This is my first post. Go easy. I'm setting up a simple critical loads system in my house using the Reliance Controls Pro/Tran 2 Manual transfer switch (125 volts, 6 circuits). This transfer switch does not switch neutral but is popular for retrofits because it combines the transfer switch and critical load box.
My current plan is to use the EG4 3000EHV-48 inverter and connect it to a EG4-LL 48V server rack battery. I'll use a NEMA L5-30 cord to connect the AC output of the inverter to the transfer switch inlet. Simple. When grid is down, I can switch to the generator side of the transfer switch and energize my fridge, natural gas furnace, internet, etc.
However, I've been reading about the nonsense going on with EG4 and the Neutral/Ground bonding screw. My main panel is ground/neutral bonded (as it should be). Thus, since the transfer switch does not switch neutral, the inverter must NOT be ground/neutral bonded. However, based on the discussion in this thread, it's not clear if if that is supported by the 3000EHV-48.
How does this community recommend I proceed? I have the reliance transfer switch (model 306a1) already installed. I like the eg4 inverter and battery for its (seeming) safety, performance, and rock bottom price. However, if this nonsense continues, I don't think I want to get into this mess.
I was planning on slapping on a few solar panels in series that met the voltage requirement of the inverter and never charging from grid AC input. However, it would be nice to have the option (safely).
Should I proceed with this purchase before their sale ends? Are there other all-in-one inverters (~$700 like EG4 3k) that this community recommends?
Thanks, everyone. Looking forward to contributing my research and experience to the community.
I have a similar set up minus the transfer switch as I purchased a EG4 6K Split Phase Inverter. The transfer switch is built in. I recommend installing this inverter instead.