Multi installation Zaptec Go - TN grid

In this guide, we'll walk you through the installation process for multiple Zaptec Go units, covering both single-phased and 3-phase setups.

 

Installation Essentials:

  • Maximum of three Zaptec Go chargers per home installation.
  • Zaptec Go chargers are equipped with integrated earth fault protection (RDC-DD, 6mA(DC) compliant with IEC 62955.
  • Each charger must be protected by a maximum 40A Type A 30mA RCD circuit breaker in accordance with safety regulations (NEK 722.531.2.3.101).
  • Avoid daisy-chaining units together.
  • The circuit breaker for each charger must be equal in value in installations with multiple
    Zaptec Go units. 

 

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. 

  • Load balance with 32A 3-phase across three circuits.
  • Install one fuse per Zaptec Go, each with integrated earth fault protection (Type A).
  • Phase rotation for better load distribution at 1-phase charging.

 

3- phase installation with 3-phase chargers:

 

3phase TN. 3phase chargers.png

 

3- phase installation with 1-phase chargers:

3phase installation. 1phase chargers.png

 

1- phase installation

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

  • Load balance with 32A 3-phase across three circuits.
  • Install one fuse per Zaptec Go, each with integrated earth fault protection (Type A).
  • No phase rotation is required; keep the same phase for each charging station.

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 external PEN fault detection device may be required. Typically, this would be required for chargers used for outdoor charging when connected to a PME supply. One appropriately rated device can be used to supply multiple circuits on the same installation. One exception to this is when connecting Zaptec UK Go 7kW to a single-phase PME supply. In this case, the built-in PME fault detection meets the requirements of BS 7671:2018 Amendment 1:2020 clause 722.411.4.1 (iv).

 

Was this article helpful?
13 out of 24 found this helpful