DIY 3 phase ESS installation in Belgium - Do's and dont's to get legalized (AREI)?

For cebeo you need a VAT number. If that’s a problem for you (you don’t know anyone with a VAT number willing to order them for you), you can try contacting gigatek.be, they are a cebeo reseller. I see they have the fuses for sale on the website, but the fuse holders not, but if you ask them they’ll probably order them for you as well…

I paid 37 euro per box of three fuses, and 132 euro per 3p fuse holder (vat incl.)

I used the thermal camera for peace of mind, but it wasn’t necessary, nothing went higher than 30 degrees celcius or so. I imagine if you follow proper design rules (good quality components, sufficient cable thickness, …), crimp the terminal lugs well, and torque the bolts correctly, you shouldn’t have any issues.

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Finished the inspection today. Now waiting on the report to notify Fluvius.

Congrats!
Do you mind sharing the full details of your setup and components at some point?

  • 3 x 16kWh battery seplos mason-314L-O with EVE314 MB31 cells
  • 3 x 5kW inverter victron energy multiplus ii 48/5000/70
  • victron energy cerbo gx
  • transfer switch sontheimer 10017602
  • general cable RZ1-K 1x50 Cca DC & RZ1-K 3G10 Cca AC cables from ilumitec.es
  • 6 x mersen NH1 gG 500V 200A NH1GG50V200 fuses
  • 2 x mersen PP 3P NH1 BB13PP fuse holders
  • 40x10mm & 60x10mm flat red copper to build busbars
  • klauke terminal lugs 106R10, 106R8

Thanks, and the AC components, you have the Sontheimer and what RCD’s and Type-B ELCB’s do you use?

All Schneider:

  • 2x 40A 4P 300mA type B A9Z64440
  • 40A 4P 30mA type B A9Z51440
  • 32A 4P C curve A9F79432
  • 40A 4P B curve A9F73440

Some from amazon.com.be, some amazon.de, some gigatek.be, and the 30mA from electro-colli.be, wherever I could find them cheapest.

I attached my “eendraadschema” below.

bord 1 - kelder 3P.pdf (35.8 KB)

Nicely done. Thanks, much appreciated!