Multi installation Zaptec Go - TN grid

This guide shows how to install multiple Zaptec Go units on both a single and 3-phase installation. 

  • Max three Zaptec Go chargers per home- installation
  • The chargers have integrated earth fault protection RDC-DD, 6mA(DC) ihht IEC 62955
  • Each charger must be protected by a max 40A Type A 30mA RCD circuit breaker, in accordance with safety regulations (NEK 722.531.2.3.101) 
  • Do not daisy chain units together
  • Fuse must be equal in value on installations with several Zaptec Gos

 🤚 Additional requirements for UK installation are at the end of the article.  

 

3- phase installation

When manually rotating phases on a 3-phase installation, you must use the Zaptec app to specify which incoming phase (L1, L2, or L3) is connected to the phase 1 terminal. This is done during the installation process. 

 

3- phase installation - 3-phase chargers

  • Load balancing with 32A 3-phase divided into three circuits
  • One fuse per Zaptec Go
  • Fuse with integrated earth fault protection type A
  • Phase rotation for better load distribution at 1-phase charging

3phase TN. 3phase chargers.png

3- phase installation - 1-phase chargers

  • Load balancing with 32A divided into three circuits
  • One fuse per Zaptec Go
  • Fuse with integrated earth fault protection type A
  • Phase rotation for better load distribution 

3phase installation. 1phase chargers.png

 

1- phase installation

Example of 1-phase installation with chargers wired 1-phase.

  • Load balancing with 32A divided into three circuits
  • One fuse per Zaptec Go
  • Same phase for each charging station. No phase rotation
  • Fuse with integrated earth fault protection type A

For 1-phase IT installation. Wire L1- L2 , L2-L1 and L1-L2.
Please note that even though this is possible there will not be a lot of available power when connecting three chargers on IT. 1phase.

1phase installation. 1phase chargers.png

 

 

UK 🇬🇧 requirements

  • An O-PEN Device is required for 3-phase Go units - 1 appropriately rated O-PEN device can be shared across all x3 units.
  • Single or 3-phase installations will also require a Type 2 surge protection device installed upstream.
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