1000V DC String Combiner Box – 1 String + Type 2 SPD + DC Isolator (WPPV-1S1)
The WPPV-1S1 is an IP65 plastic solar string combiner box designed for single-string PV installations requiring integrated DC isolation and surge protection. Rated for...
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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.
The WPPV-1S1 is an IP65 plastic solar string combiner box designed for single-string PV installations requiring integrated DC isolation and surge protection. Rated for...
The WPPV-2S2 is an IP65 plastic solar string combiner box designed for two-string PV installations requiring integrated DC isolation and surge protection. Rated for...
The WMPV-1S1 is an IP65 metal solar string combiner box designed for single-string solar PV installations requiring enhanced enclosure durability. Rated for 1000V DC...
The WMPV-2S2 is an IP65 metal solar string combiner box designed for dual-string solar PV systems operating up to 1000V DC. It provides safe...
Pre-wired in the UK and tested before dispatch – allow up to 3 working days for shipping. The WME10/HP40R16 10 Way Heat Pump Consumer...
The WMEV206C is a 2-way A-Type RCBO EV Kit fitted with a 6 A C-curve high-immunity Type A RCBO. It provides overload, short-circuit and...
The WMEV210C is a 2-way A-Type RCBO EV Kit fitted with a 10 A C-curve high-immunity Type A RCBO. It provides overload, short-circuit and...
The WMEV216C is a 2-way A-Type RCBO EV Kit fitted with a 16 A C-curve high-immunity Type A RCBO. It provides overload, short-circuit and...
The WMEV220C is a 2-way A-Type RCBO EV Kit fitted with a 20 A C-curve high-immunity Type A RCBO. It delivers combined overload, short-circuit...
The WMEV225C is a 2-way A-Type RCBO EV Kit fitted with a 25 A C-curve high-immunity Type A RCBO. It provides combined overload, short-circuit...
The WMEV232C is a 2-way A-Type RCBO EV Kit fitted with a 32 A C-curve high-immunity Type A RCBO. It provides overload, short-circuit and...
The WMEV240B is a 2-way A-Type RCBO EV Kit fitted with a 40 A B-curve high-immunity Type A RCBO. It provides overload, short-circuit and...
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.