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Surge protection devices, also known as SPDs, help protect electrical installations from transient overvoltage caused by switching events, supply disturbances and lightning-related surges. Browse Type 2 SPDs, whole house surge protection units, external SPD enclosures and three-phase surge protection devices for domestic, commercial and renewable installations.
Our range includes standalone SPD modules, retrofit surge protection kits and pre-wired enclosure units for consumer units, EV chargers, heat pumps, solar PV systems and distribution boards.
Quick answer: For most UK homes and small commercial installations, a Type 2 surge protection device fitted at the consumer unit is the standard choice for whole house surge protection.
Choose your SPD based on the installation type, supply arrangement and whether you need a module-only device or a complete enclosure kit.
Pre-wired in the UK and tested before dispatch – allow up to 3 working days for shipping. The WRCUSP440C is a ready-to-fit 3-Phase Surge...
Pre-wired in the UK and tested before dispatch – allow up to 3 working days for shipping. The WME12/HP40C 12 Way Heat Pump Consumer...
Pre-wired in the UK and tested before dispatch – allow up to 3 working days for shipping. The WME08/HPR40C 8 Way Heat Pump Consumer...
The WSPDTE-4 is a 3P+N Type 1+2 AC surge protection device designed for three-phase incoming supplies where protection against both lightning currents and transient...
The WMEV240C is a 2-way A-Type RCBO EV Kit fitted with a 40 A C-curve high-immunity Type A RCBO. It provides combined overload, short-circuit...
Pre-wired in the UK and tested before dispatch – allow up to 3 working days for shipping. The WRDUSP440C is a ready-to-fit 3-Phase Surge...
The WMEV332B is a compact 3-way EV RCBO enclosure designed to provide both earth leakage and overload protection for single-phase EV charging circuits. Fitted...
The MEC440SPT12 is a 4-module metal surge protection unit combining a 100A double-pole main switch with a Type 1+2 surge protection device (SPD). It...
The WMEPME08/SP-C32 is the 32A RCBO version of the metal PME fault detection consumer unit with surge protection. It is listed for EV charging...
The WSPDTE-2 is a 1P+N Type 1+2 AC surge protection device designed for single-phase incoming supplies where both lightning current discharge and transient overvoltage...
The WMEPME12/LBK is a metal PME consumer unit listed with an RCBO, load balancing and kWh energy metering. It is a configuration option for...
The WSPD340 is a 3 Pole Type 2 Surge Protection Device designed for three-phase electrical systems requiring protection against transient overvoltages caused by switching...
An SPD must be selected for the supply arrangement, installation location and applicable risk assessment. Confirm whether Type 1, Type 2 or combined protection is required, then match the device configuration and ratings to the manufacturer’s design information.
Commonly installed at consumer units and distribution boards to limit transient overvoltage from switching events and indirect lightning effects.
Pre-wired or external enclosures can provide a practical retrofit route where board space is limited or a separate protective assembly is preferred.
Three-phase systems require a suitable multi-pole SPD arrangement coordinated with the supply, earthing system and upstream protection.
Three-Phase SPDsEV Surge Protection BoardsConsumer UnitsHeat Pump BoardsCircuit Protection
Trade support: UK-stocked products, manufacturer-backed specifications and fast dispatch. Check each product page for ratings, standards, stock status and delivery details before ordering.
$132.00 ex VAT
VAT: Product prices exclude VAT. VAT is added at checkout.
