Recommended grid protection relays

To ensure compatibility and compliance, XOLTA recommends using one of the tested and certified grid protection relay models listed below. Other suppliers may be used if their products comply with specific grid code requirements. These relays do not require a Modbus connection.

The ABB CM-UFD.M31 and CM-UFD.M31M are the preferred choices for XOLTA C&I battery systems and will be detailed in this document.

Recommended grid protection relay types

Supplier

Version without Modbus

Version with Modbus

ABB

CM-UFD.M31 (or CM-UFD.M33)

CM-UFD.M31M (or CM-UFD.M33M)

Ziehl

UFR1001E

UFR1002IP

The grid codes supported (certified) for these grid protection devices as of April 19, 2024, are listed in the table below. All device settings can be adjusted to comply with additional grid code requirements.

Note: Always consult the manufacturer's manual to confirm the latest certified grid codes.

Supported grid codes for the recommended grid protection relays.

Grid feeding monitoring model

Supported grid codes

Ziehl 1001E, UFR1002IP

Selectable grid codes:

  • Australia: AS4777.2
  • Austria: TOR A, B, C, D
  • Belgium: Synegrid C10/C11
  • Finland: SFS-EN50549-1+2:2019
  • France: VDE 0126, VFR2019
  • Germany: VDE 4105:2018, VDE 4110:2018
  • Ireland: EN50549-+2
  • Netherlands: NEN-EN50549-1:2019
  • Switzerland: NA/EEA-NE7 CH 2020
  • United Kingdom: G98, G99

ABB CM-UFD.M31, ABB CM-UFD.M31M

Selectable grid codes:

  • Germany: VDE 4105:2018, VDE 4110:2018

Note: Only the grid codes listed in the table are preconfigured. You need to enter other grid codes manually, for example, for Denmark and Sweden.