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Surge Protective Devices

Consumer Unit SPDs

Consumer Unit SPDs (8)

Single Phase SPDs

Single Phase SPDs (32)

Three Phase SPDs

Three Phase SPDs (32)

Solar PV Surge Protection

Solar PV Surge Protection (13)

Surge Protection Devices

Surge Protection Devices (23)

Showing 81–99 of 99 results

Niglon SP23S-3PN/C40KA 40kA Type 2 Surge Protection Device

Niglon SP23S-3PN/C40KA 40kA Type 2 Surge Protection Device
Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
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SKU: SP23S-3PN/C40KA
£79.78
Niglon SAE2M-23-215 Type 2 (or 3) Surge Protection Device

Niglon SAE2M-23-215 Type 2 (or 3) Surge Protection Device
Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
Read More
SKU: SAE2M-23-215
£40.43
Niglon SAE5-23-415 Type 2 Surge Protection Device

Niglon SAE5-23-415 Type 2 Surge Protection Device
Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
Read More
SKU: SAE5-23-415
£97.93
Niglon SAE6M-23-415 Type 2 (or 3) Surge Protection Device

Niglon SAE6M-23-415 Type 2 (or 3) Surge Protection Device
Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
Read More
SKU: SAE6M-23-415
£102.66
Switchtec DDC50S-21Y-1200 50kA 1200V DC Type 2 PV SPD

Switchtec | DDC50S-21Y-1200 | Citel | 50kA 1200V DC Type 2 Surge Protection Device For Energy Storage & EV Charging
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
SKU: DDC50S-21Y-1200
£127.04
FuseBox SPDCUKITTPNT1 Type 1 SPD TPN Kit

FuseBox | SPDCUKITTPNT1 | Type 1 SPD TPN Kit
Available to Order
Estimated Lead Time:
Usually 2 - 4 Working Days
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SKU: SPDCUKITTPNT1
£170.05
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
Read More
SKU: SA440
£29.28
SPD1 Type 2 & 3 Single Phase SPD

Surge Protection Devices | SPD1 | Type 2 & 3 Single Phase SPD | 40kA
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
£31.95
Choose options
This product has multiple variants. The options may be chosen on the product page
SPD2 Type 2 & 3 Single Phase SPD

Surge Protection Devices | SPD2 | Type 2 & 3 Single Phase SPD | 40kA
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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£74.95
Choose options
This product has multiple variants. The options may be chosen on the product page
SPD4 Type 2 & 3 Three Phase SPD

Surge Protection Devices | SPD4 | Type 2 & 3 Three Phase SPD | 40kA
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
£138.95
Choose options
This product has multiple variants. The options may be chosen on the product page
LSPD22 Type 1 2 3 Single Phase SPD

Surge Protection Devices | LSPD22 | Type 1, 2 & 3 Single Phase SPD | 12.5kA Per Pole
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
£150.95
Choose options
This product has multiple variants. The options may be chosen on the product page
LSPD24 Type 1 2 3 Three Phase SPD

Surge Protection Devices | LSPD24 | Type 1, 2 & 3 Three Phase SPD | 12.5kA Per Pole
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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£286.95
Choose options
This product has multiple variants. The options may be chosen on the product page
LSPD12 Type 1 2 3 Single Phase SPD

Surge Protection Devices | LSPD12 | Type 1, 2 & 3 Single Phase SPD | 25kA Per Pole
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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£232.95
Choose options
This product has multiple variants. The options may be chosen on the product page
LSPD14 Type 1 2 3 Three Phase SPD

Surge Protection Devices | LSPD14 | Type 1, 2 & 3 Three Phase SPD | 25kA Per Pole
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
£455.95
Choose options
This product has multiple variants. The options may be chosen on the product page
LSPDPV1500 Type 1+2 1500V DC PV SPD

Surge Protection Devices | LSPDPV1500 | Type 1+2 PV SPD | 1500V DC
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
SKU: LSPDPV1500
£188.95
WCED WFMS100/3FSP WCED Metal Fused Main Switch with 3 Fuses & SPD 1WCED WFMS100/3FSP WCED Metal Fused Main Switch with 3 Fuses & SPD 2

WCED Metal Fused Main Switch with 3 Fuses & SPD
Out of Stock
Expected back in stock mid-June
Read More
SKU: WFMS100/3FSP
£61.96
Read more
FuseBox SPDTPNT2E Three Phase Surge Protection

FuseBox | SPDTPNT2E | Enclosed Type 2 Three Phase SPD | 3P+NPE | No MCB
Out of Stock
Due 28.09.26
Read More
SKU: SPDTPNT2E
£59.95
Read more
SPV340T 3-Pole Type 1+2 DC Surge Protection DeviceLive Electrical | SPV340T | 3-Pole | Type 1+2 DC Surge Device | For Circuits up to 1000V

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
Read more
Timeguard TX3913 SPD 1 Module

Timeguard | TX3913 | Type 2 SPD for TX Consumer Units
Out of Stock
This item cannot be back-ordered
SKU: TX3913
£20.16
Read more

Showing 81–99 of 99 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.






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Cut-Off Time and Order Information
To ensure your order qualifies for next day delivery, please place your order by 3:00 PM. This is subject to all items being available on the shelf at the time of your order. For orders where the total value exceeds £200 + VAT (double our standard carriage-paid order value of £100 + VAT), we are happy to split the delivery into two shipments if some items are needed urgently and others are not immediately available. If you have any questions or need further assistance, feel free to reach out to us via WhatsApp for live support. We’re here to help!

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Orders above £100 + VAT qualify for free next-day delivery via DPD for in-stock items. While we strive for timely dispatch, we recommend placing orders early to avoid potential delays. Once dispatched, unexpected issues may arise despite the courier’s efforts.

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Supplier Lead Time & Availability

This item may be sourced from our supplier before dispatch.
The lead time shown is an estimate only and is based on the usual supplier timeframe. It is subject to supplier availability and is not a guaranteed delivery date.
We do not have a live supplier stock feed, so supplier stock can change without notice.
Delivery timers and courier estimates apply once the item is available for dispatch.
If the item is unavailable, we will contact you with the available options, including waiting for stock, choosing an alternative product, cancellation, or a refund for the unavailable item.
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Delivery info

If this item is not currently available from our shelf stock, we will order it directly from Niglon and dispatch it as soon as it arrives with us. Delivery is usually completed within 2–3 working days.

Please note that if your order includes other products with a longer lead time, the complete order may be dispatched once all items are available.

In the unlikely event that an item becomes unavailable, we will contact you with the available options, which may include waiting for stock, choosing an alternative product or cancelling the unavailable item for a refund.

Delivery info

If this item is not currently on our shelves, we will order it from FuseBox for delivery to our warehouse. FuseBox does not dispatch directly to our customers, so once the item arrives with us, we will send it on to you as quickly as possible. Many items reach us the next working day, while some may take a little longer. Delivery to you is usually completed within 2–4 working days.

Please note that if your order includes other products with a longer lead time, the complete order may be dispatched once all items are available.

In the unlikely event that an item becomes unavailable, we will contact you with the available options, which may include waiting for stock, choosing an alternative product or cancelling the unavailable item for a refund.

Delivery info

Where an order contains only WCED products that are not available from our shelf stock, it will usually be dispatched directly from WCED. Delivery often takes 1–2 working days, although stock availability, order cut-off times and courier schedules may affect the timing.

For mixed orders containing products from other suppliers, the dispatch arrangement and delivery time may vary, and the order may follow the longest lead time shown.

Delivery info

Orders containing only Live Electrical products that are not available from our shelf stock will usually be dispatched directly from Live Electrical. Delivery is generally completed within 2–3 working days, although stock availability, order cut-off times and courier schedules may affect the timing.

For mixed orders containing products from other suppliers, dispatch arrangements may vary, and the order may follow the longest delivery estimate shown.

In the unlikely event that an item becomes unavailable, we will contact you with the available options, which may include waiting for stock, choosing an alternative product or cancelling the unavailable item for a refund.

Delivery info

This product is currently out of stock. According to our supplier (WCED), new stock is expected mid-June. As soon as it arrives, it will be available to order directly through our website.

Delivery info

Due 28.09.26

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