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Three Phase SPDs

Showing 21–32 of 32 results

Niglon | SP12S-3PN/100KA | Type 1+2 Surge Protection Device | 100kA

Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
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SKU: SP12S-3PN/100KA
£348.01

Live Electrical | LSMC8M-SA | SPD Surge Protective Device with 40A C Curve 10kA MCB | 8 Way Metal

Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
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SKU: LSMC8M-SA
£62.46

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

Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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SKU: SPDTPNT2E
£59.95

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

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 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

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

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
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£455.95
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This product has multiple variants. The options may be chosen on the product page

WCED WMCUSP440C 3 Phase SPD with 40A Curve C 4 Pole MCB

Out of Stock
This item cannot be back-ordered
SKU: WMCUSP440C
£51.38
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WCED | WMCUSP463C | 3 Phase SPD | 63A C Curve 4 Pole MCB

Out of Stock
This item cannot be back-ordered
SKU: WMCUSP463C
£61.65
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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
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WCED WMCUSP432B 3 Phase SPD with 32A Curve B 4 Pole MCB

Out of Stock
This item cannot be back-ordered
SKU: WMCUSP432B
£51.38
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Showing 21–32 of 32 results

Three Phase SPD Surge Protection Devices

A Three Phase SPD is designed to limit transient overvoltages within three-phase electrical installations and divert surge current away from connected equipment. These surge protective devices are commonly installed at three-phase distribution equipment as part of the overall electrical protection strategy.

Three Phase Surge Protection

Three-phase surge protection is widely used in commercial, industrial and larger electrical installations where sensitive equipment, control systems, machinery and electronic devices may be vulnerable to transient overvoltages.

The appropriate SPD type and configuration depends on the installation, supply arrangement, earthing system and the level of surge protection required.

Type 1, Type 2 and Combined Three Phase SPDs

Type 2 SPDs are commonly used to provide protection against switching surges and transient overvoltages associated with indirect lightning effects. Where protection against partial lightning current is required, a Type 1 or combined Type 1+2 SPD may be specified.

Choosing a 3 Phase SPD

  • SPD type – determine whether Type 1, Type 2 or combined Type 1+2 protection is required.
  • System voltage – select an SPD suitable for the three-phase supply.
  • Configuration – check the required protection arrangement for the installation.
  • Earthing system – confirm compatibility with the relevant supply and earthing arrangement.
  • Surge ratings – check the manufacturer’s discharge current and voltage protection characteristics.
  • Backup protection – follow the manufacturer’s requirements for associated protective devices and installation.

Three Phase SPD Installation

Correct SPD performance depends on appropriate device selection, connection arrangement, conductor routing and coordination with the rest of the electrical installation. Installation should follow the manufacturer’s instructions and the applicable requirements of BS 7671.

3 Phase Surge Protection from Electrical4Less

Browse our range of Three Phase SPDs for commercial and industrial distribution systems. Compare SPD type, configuration, surge ratings and other specifications to select the appropriate surge protective device for the installation.