Safety Question RE: Growatt SPF 5000 ES

[dsdc]

Just trying to build a system w/o a battery with the Growatt SPF 5000 ES I got. I do not quite feel comfortable wiring my own outlet yet, so is it safe to buy a 10/3 outdoor extension cord, cut that in half, strip the ends a bit and install and use them as the AC input and output?

 

[sunshine_eggo]

That unit is the EU spec 230VAC/50Hz. Was that your intent?

 

[dsdc]

That unit is the EU spec 230VAC/50Hz. Was that your intent?

Ah, thanks for pointing that out... I also noticed in the manual, it talks about configurability to 230, 240 volts as well as 50,60 hz mode. I initially thought I can just run a 120v plug off the outputs, but it sounds like that won't be possible without getting a transformer?

 

[Gib]

That's right. Check out David Poz and Will Prouse on YouTube. They put out some very good videos on the Growatt SPF 5000 es.
I just purchased a system today based roughly on David Poz's build.

 

[Gib]

You'll find a model of the autotransformer that you need on those videos.

 

[sunshine_eggo]

Signature sells them as a kit:

GROWATT 5kW 5000ES (USA Model) OFF GRID INVERTER & Growatt Transformer Kit

5000W LVM- ES Off-Grid 240V GROWATT Inverter with Solar Charge Controller + integrated GROWATT Split Phase Transformer for true 120V/240V Split Phase Electricity! The GROWATT SPF 5000W LVM-ES is the all-in-one inverter/charger you need to take control of your energy bill. The 5000ES can work...

www.signaturesolar.com

Ah... found it:

5kW Split Phase Transformer / Midpoint Transformer

THIS IS A PRE-ORDER ITEM WITH A 4 WEEK LEAD TIME Signature Solar now offers the latest US Split Phase Auto Transformer by Growatt. This autotransformer takes Single Phase 240Vac (L/N) electricity output and creates true Split Phase 120Vac/120Vac (L/L/N). This addition to our line sheet increases...

www.signaturesolar.com

 

[EchoPapa]

Just trying to build a system w/o a battery with the Growatt SPF 5000 ES I got. I do not quite feel comfortable wiring my own outlet yet, so is it safe to buy a 10/3 outdoor extension cord, cut that in half, strip the ends a bit and install and use them as the AC input and output?

Read through this forum for grounding issues to take into consideration with the mid-point transformer.