Earthing a 12 V inverter

Hi Calahonda,

Clarifying question, or five: It's a 2.1kWh, 12v battery onto an inverter which converts to AC at 230v? Is the that right interpretation?

It's also a portable inverter, and not intended as a wall-mount inverter, right? What does the sticker say on the inverter say in terms of output voltage as I'm going to guess that it could be a simple type outputting 110v on both N and L.

I could be wrong here, but it's probably still a split-phase inverter, meaning that both "L" and "N" output terminals are 'live', but the voltage output from L is 120v AC and its phase is 180 degrees out from the AC voltage on N, meaning that the voltage read between L and N will be 240v AC, but will only be 120v from either phase to earth.

In that case it's like one of those 110v AC site transformers where there isn't an earth as it's fully decoupled from the mans 240v, but there is no path to earth for the 110v so the risk of electrocution is far lower. Normally those systems do not get grounded for that reason. And you also don't fit an RCD/RCBO (but an MCB may be advised) as there is no fault path to earth, so the RCD can't detect any leakage.

But I'm just some randomer off the internet, so take advice off a trusted sparks. 😁

https://powmr.com/blogs/news/what-is-split-phase-inverter?srsltid=AfmBOoquv2Z_rpMgLh23Tl_HQv8IZkh4R93BOmtAeAhKmZiBPsso5Eq0

No, try between E an L, then E and N on the output of the device. That's my understanding of the theory anyway.

I would recommend leaving live things to an electrician, like if you have to ask ..

Make sure whatever you do is waterproof especially with sideways and upward rain.