NC RfG Certificate Received!

New MultiPlus-II 48/4k5 and 48/6k5 models can now be legally connected to the power grid in Poland.

We are pleased to announce that we have received the official NC RfG certificate for the new MultiPlus-II 48/4k5 and MultiPlus-II 48/6k5 battery inverter models.

The NC RfG certificate is required for legal connection of power generating equipment to the electrical grid in Poland. Without it, a photovoltaic system with energy storage cannot be connected to the grid.

New Certified Models

MultiPlus-II 48/4k5/55-32 230V
  • Continuous power: 4.0 kW
  • Peak power: 4.5 kVA
  • Charge current: 55 A
  • Battery voltage: 48 VDC
MultiPlus-II 48/6k5/100-50 230V
  • Continuous power: 6.0 kW
  • Peak power: 6.5 kVA
  • Charge current: 100 A
  • Napięcie akumulatora: 48 VDC

Good news!

The same certificate also confirms compliance of earlier MultiPlus-II models:

  • MultiPlus-II 48/3000/35-32 230V (48V version, 3 kVA)
  • MultiPlus-II 48/5000/70-50 230V (48V version, 5 kVA)
  • MultiPlus-II 24/3000/70-32 230V (24V version, 3 kVA)

All above models are also available with integrated GX communication module.

Certification Details

Certificate number 25-414-00
Certification body Kiwa Primara GmbH
Validity until 27 November 2030
Standards EU Commission Regulation 2016/631 (NC RfG)
PSE General Application Requirements
Certificate type Type A
Covered models 48V Series: 3000, 5000, 4k5, 6k5
24V Series: 3000
(all with optional GX module)

What About Other Models?

According to Victron Energy, the MultiPlus-II 20kVA is currently undergoing the certification process. This will take some time, but we are working to deliver the certificate for this model as soon as possible.

Benefits for Installers

Legal grid connection

Possibility of official installation registration with DSO

Faster connection process

Certificate accepted by all DSOs in Poland

Wider power range

Ability to match the inverter to customer requirements

Regulatory compliance

Meeting NC RfG and PSE requirements

FAQ – Frequently Asked Questions

The certificate covers selected models: 48/3000, 48/5000, 48/4k5, 48/6k5 and 24/3000 - all in standard and GX module versions. Other models, such as the MultiPlus-II 20kVA, are not currently covered by this certificate (20kVA is undergoing certification).

Yes, the NC RfG certificate issued by Kiwa Primara GmbH complies with PSE requirements and is accepted by all Distribution System Operators in Poland.

The certificate is valid until 27 November 2030.

No, the certificate covers both standard versions and those with integrated GX communication module.

The certificate complies with EU Commission Regulation 2016/631 (NC RfG) and PSE General Application Requirements.

Source: Victron Energy B.V.

Certificate: Kiwa Primara GmbH, No. 25-414-00

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