Collection: PME Protection and Surge Protection Questions

PME (Protective Multiple Earthing) is a UK electrical supply method that connects neutral and earth conductors to improve safety. PME protection devices monitor these connections and disconnect power if faults occur, preventing electric shocks or equipment damage—making them essential for safe EV charger installs.

PME devices continuously monitor the earth and neutral lines on both single-phase and three-phase systems. If they detect faults like neutral breaks or earth faults, they quickly cut power to avoid dangerous situations.

Due to safety and regulatory reasons, PME protection devices should be installed by a qualified, certified electrician familiar with UK wiring regulations.

If the EV charger does not have built-in PME monitoring, and the supply is PME, then yes—external PME protection devices are required to comply with regulations and ensure safety. Check our PME protection products here.

PME devices provide earth fault monitoring and disconnect power in unsafe conditions, often eliminating the need for costly and maintenance-heavy earth rods or stakes on PME supplies.

Our devices offer reliable fault detection, compliance with BS7671, simplified installations, and durable design—all at competitive prices to help installers save time and protect customers. Browse our PME protection range here.

Surge protection devices (SPDs) divert excess voltage from surges, such as lightning strikes or grid switching, safely to earth before it can damage sensitive EV charger electronics. Check our surge protection products here.

Yes, all our PME and surge protection products meet or exceed the requirements set out in BS7671 for safe EV charger installations.

Yes, PME devices continuously monitor the supply and can detect neutral faults early, disconnecting power to prevent harm or equipment damage.

Regular periodic testing is recommended, typically during routine electrical inspections. Replacement depends on usage and manufacturer guidelines but generally every 5-10 years or if a fault is detected.

PME protection devices focus on detecting earth and neutral faults, disconnecting power when needed. Surge protection devices protect against sudden voltage spikes but do not monitor earth faults.

Our PME protection devices combine earth fault monitoring and surge protection functions where applicable, but standalone SPDs focus solely on surge protection.

You can confirm the supply type by checking the incoming supply documentation, the main consumer unit label, or consulting the local distribution network operator.

Install SPDs close to the main distribution board feeding the EV charger, following manufacturer wiring instructions precisely for maximum protection and compliance.

Yes, our devices are designed to be universally compatible with all UK-standard EV chargers.

We offer manufacturer warranties on all products and provide technical support to help installers with product selection and installation advice.

Absolutely! By eliminating the need for earth rods and simplifying fault monitoring, our PME devices speed up installs and reduce material and labor costs.

With proper installation and maintenance, PME devices typically last 5-10 years but should be regularly tested.

They prevent dangerous earth faults by detecting neutral breaks early and disconnecting power before shocks or damage can occur.

Yes, our products are suitable for both residential and commercial applications.

A 3-phase distribution board distributes electrical power from a three-phase supply, allowing higher power loads like commercial EV chargers or large residential properties.

Consider the current rating, space for protective devices, compatibility with PME and surge protection, and compliance with regulations. Browse our 3-phase distribution boards here.

Our boards support a variety of ratings suitable for typical EV charging needs, usually from 63A up to 125A, depending on model.

Yes, they are designed to easily integrate PME monitors, surge protection devices, and other protective components.

Yes, our boards are versatile enough for both settings.

We design our boards with installers in mind—easy wiring, clear labeling, and robust construction.

Some models may include space and options for built-in devices, but most are supplied as distribution boards ready to accept protective devices as needed.

Competitive pricing, installer-friendly design, and excellent technical support tailored to EV charger applications.

Follow BS7671 regulations, use certified devices, and consult local codes; our products are designed to support compliance.

Yes, many boards allow additional modules or upgrades depending on your needs.

We provide manufacturer warranty and responsive support to help with installation or product questions.

Yes, we can help you create bundles tailored for your project needs to simplify ordering and save costs.

Our boards are made from high-quality, fire-retardant plastic or metal, built to withstand typical site conditions.

We provide detailed dimensions on each product page to help you plan space accurately.

Absolutely — easy access, clear labeling, and well-thought layouts are standard.

We offer fast UK delivery, typically within 2-5 working days, with tracking for peace of mind.

Yes, we provide clear installation instructions and technical support via phone or email.

Yes, we offer discounts on bulk orders—contact us for a personalised quote.

Our products offer excellent quality at very competitive prices, backed by focused support for EV installers.

Yes, they’re designed for flexible use in new installations and upgrades alike.