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SPD Surge Protection Devices

Showing 81–100 of 128 results

Hager JK101SPD 125A Surge Protection Kit Type 1 & 2

Available to Order
Estimated Lead Time:
Usually 2 - 4 Working Days
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SKU: JK101SPD
£385.76

Surge Devices 800912 50kA Type 1+2+3 Single Phase SPD with Window Indication

Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: 800912
£219.00

Surge Devices 10020/4 Industrial 50kA Type 1+2+3 Three Phase Surge Protection Device

Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: 10020/4
£306.00

Surge Devices 10020/2 Type 1+2+3 SPD for TN-S and TNC-S systems

Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: 10020/2
£153.00

Surge Devices 381649S Type 1+2+3 50kA Three Phase Lightning and Surge Arrester

Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: 381649S
£354.00

Surge Devices 10812/LED/ENC 50kA Type 1+2+3 Single Phase SPD with LED Indication in IP65 Enclosure

Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: 10812/LEDENC
£267.00

Surge Devices 10812/LED/ENCM 50kA Type 1+2+3 Single Phase SPD with LED Indication & 63A MCB

Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: 10812/LEDENCM
£273.00

Surge Devices 800912/ENC 50kA Type 1+2+3 Single Phase SPD in IP65 Enclosure

Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: 800912ENC
£243.00

Surge Devices 800912/ENCM 50kA Type 1+2+3 Single Phase SPD in IP65 Enclosure with MCB

Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: 800912ENCM
£249.00

Surge Devices 10020/4ENCM Industrial 50kA Type 1+2+3 Three Phase Surge Protection Kit with MCB & IP65 Enclosure

Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: 10020/4ENCM
£384.00

Surge Devices SY12350KA4P 50kA 3 Phase Type 1+2+3 Lightning and Surge Arrester with Window Indication

Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: SY12350KA4P
£306.00

Surge Devices SY12325KA2P Type 1+2+3 SPD – 25kA Single Phase Lightning Arrester for TT, TN-S & TNC-S

Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: SY12325KA2P
£153.00

Surge Devices SY1-C40X Single Phase Type 2+3 SPD with Remote Contact

Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: SY1-C40X
£72.00

Surge Devices SY1-C40X/ENC Single Phase Type 2+3 SPD in IP65 Enclosure

Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: SY1-C40XENC
£93.00

Surge Devices SY1-C40X/ENCM Single Phase Type 2+3 SPD in Enclosure with MCB

Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: SY1-C40XENCM
£99.00

Surge Devices SY2-C40XLED Type 2+3 Three Phase SPD with LED Indication

Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: SY2-C40XLED
£141.00

Surge Devices SY2-C40XLED/ENC Type 2+3 Three Phase SPD in IP65 Polycarbonate Enclosure

Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: SY2-C40XLEDENC
£162.00

Surge Devices SY2-D/ENCM Single Phase Type 2/3 Surge Protection in Enclosure with MCB

Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: SY2-D/ENCM
£53.30

Surge Devices 320002 Single Phase Type 2/3 SPD with Remote Contact

Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: 320002
£39.00

Surge Devices Pluggable Data Signal Line 30V SPD for 4/20mA Signals

Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: SP30
£58.50

Showing 81–100 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.