PEN Fault Go - What is PEN fault protection and why is it necessary?

In the UK, EV chargers that are used to operate outdoors have a legal requirement to be protected from ‘neutral faults’ when connected to a PME network.

PEN Fault

We understand the UK’s need for chargers to come with integrated PEN fault to keep you safe. Not only does it save time and money on installation it also helps to keep our charger aesthetics small and neat without having to install any extras.

What is PEN fault detection and what do I do if it is detected?

PEN fault detection means that an abnormal supply voltage has been detected that is outside of the statutory requirements. This is a potential safety hazard, and so must be reported to the Distribution Network Operator (DNO) by the owner by dialing 105.

The DNO should then investigate the reason for the abnormal supply voltage and make repairs, if necessary.

Additional diagnostic information is available from the charger to help with any investigation. This information can be requested by contacting Zaptec support.

We understand the UK’s need for chargers to come with integrated PEN fault to save time and money on installation, plus to keep our beautiful aesthetics small and neat without having to install any extras.

We are giving you the opportunity to be one of the UK's first to install the new Zaptec Go’s with built in PEN fault detection.

What is PEN fault detection?

An open PEN scenario occurs when the joint Protective Earth (PE) and Neutral (N) conductor in an electrical installation becomes disconnected, while the Live connection remains intact. Although this event is relatively rare, with around 400 cases reported annually in the UK, its implications for electric vehicle (EV) charging can be significantly serious.

Smart, small and safe

  • Smart charging: We provide a UK specific 7.4kW Zaptec Go variant, which is built to meet the most up to date UK smart charge and security regulations.
  • The market’s safest charger: Certified to the highest safety standards, with a UK specific Zaptec Go including PEN fault detection for UK earthing systems.
  • Future-proof and up-to-date: WiFi or 4G, and keeps itself up-to-date with functions and updates.
  • Beautifully simple: With function-lit socket and RFID reader as a standard.