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SPD Surge Protection Devices

Showing 121–128 of 128 results

Live Electrical SA440 4 Pole Type 2 SPD

Live Electrical | SA440 | 4 Pole Type 2 SPD | 20/40kA

Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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SKU: SA440
£29.28

WCED Metal Fused Main Switch with 3 Fuses & SPD

Out of Stock
Expected back in stock mid-June
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SKU: WFMS100/3FSP
£61.96
LSMC840SP-P 3 Phase EV Charger Consumer Unit C CurveLive Electrical | LSMC840SP-P | 3 Phase EV Charger Consumer Unit | SPD | C40A Type A RCBO

Live Electrical | LSMC840SP-P | 3 Phase EV Charger Consumer Unit | SPD | C40A Type A RCBO

Out of Stock
This item cannot be back-ordered
SKU: LSMC840SP-P
£80.14

Surge Devices 800914ENC Type 1+2+3 SPD – 3-Phase Lightning Arrester in IP65 Enclosure

Out of Stock
This item cannot be back-ordered
SKU: 800914ENC
£465.00

Surge Devices 800914 Type 1+2+3 SPD – 3-Phase Lightning Arrester for TN-S & TNC-S Installations

Out of Stock
This item cannot be back-ordered
SKU: 800914
£435.00

FuseBox | SPDTPNT2E | Enclosed Type 2 Three Phase SPD | 3P+NPE | No MCB

Out of Stock
Due 27.08.26
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SKU: SPDTPNT2E
£59.95

Surge Devices 800914ENCM Type 1+2+3 SPD – 3-Phase Lightning Arrester in IP65 Enclosure with 63A MCB

Out of Stock
This item cannot be back-ordered
SKU: 800914ENCM
£483.00

Live Electrical | SPV340T | 3-Pole | Type 1+2 DC Surge Device | For Circuits up to 1000V

Out of Stock
This item cannot be back-ordered
SKU: SPV340T
£73.12

Showing 121–128 of 128 results

Surge Protective Devices for Electrical Installations

A surge protective device limits transient overvoltages and diverts surge current away from connected equipment. SPDs are used as part of a coordinated electrical protection strategy and may be required depending on the installation type, risk assessment and applicable BS 7671 requirements.

Type 1, Type 2 and Combined Type 1+2 SPDs

Type 1 SPDs are designed for locations where partial lightning current may need to be discharged, typically at the origin of installations where this level of protection is required. Type 2 SPDs are widely used to protect against switching surges and transient overvoltages associated with indirect lightning effects. Combined Type 1+2 devices provide both functions in one unit where appropriate.

Single-Phase, Three-Phase and Solar PV Surge Protection

The range includes surge protection for single-phase and three-phase AC installations, together with dedicated DC SPDs for solar PV systems. Choose a device that matches the system voltage, number of poles, earthing arrangement and application. Dedicated category ranges make it easier to compare suitable options for consumer units, distribution boards and PV installations.

Choosing the Correct Surge Protective Device

  • Check whether Type 1, Type 2 or combined Type 1+2 protection is required.
  • Match the SPD to the supply voltage, AC or DC system and number of poles.
  • Confirm compatibility with the installation’s earthing arrangement.
  • Check discharge ratings, backup protection and coordination requirements.
  • Follow the manufacturer’s installation instructions and applicable BS 7671 requirements.

SPD Kits and Trusted Electrical Brands

Alongside stand-alone SPDs, we stock consumer unit SPD kits, enclosure solutions and surge protection combinations from brands including FuseBox, Hager, Live Electrical, Niglon, WCED Whitecliffe and Citel. Use the product filters and subcategory links above to narrow the range quickly.

For trade and professional installations, our Surge Protective Devices range gives you practical options across domestic, commercial and solar PV applications, with fast UK delivery available on eligible in-stock orders.