Surge Protection Device

Surge Protection Devices (SPDs)

Surge protection devices divert lightning-induced and switching transients to earth before they reach sensitive equipment. This range stocks Mersen Type 1, Type 2 and Type 1+2 SPDs and Modulostar fuse gear, Lovato Electric SG pluggable SPDs and replacement modules, and Finder and ABB surge arresters, for single- and three-phase systems.

Filter by SPD type, nominal voltage and discharge current. DC-side protection for solar systems is under PV Surge Protection.

Showing 283 products

Product Key Specs Price Qty Stock Actions
K2-440 Mersen Type 2 1P 400V Replacement Cartridge Mersen 44020005 K2-440 Type 2 replacement cartridge for compatible Surge-Trap K2 Series surge protection devices…
K2-440 Mersen Type 2 1P 400V Replacement Cartridge Mersen 44020005 K2-440 Type 2 replacement cartridge for compatible Surge-Trap K2 Series surge protection devices…
  • Type 2 · 20 kA · 1-pole
£32.00 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: 44020005
K2-2P440 Mersen Surge Protector Type 2 SPD 2 Pole 230/400 Volt 20KA IT Mersen 44020218 K2-2P440 Type 2 two-pole surge protection device for 400 V AC TN-S systems,…
K2-2P440 Mersen Surge Protector Type 2 SPD 2 Pole 230/400 Volt 20KA IT Mersen 44020218 K2-2P440 Type 2 two-pole surge protection device for 400 V AC TN-S systems,…
  • Type 2 · 20 kA · TN-S
£74.78 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: 44020218
K2-4P440 Mersen Surge Protector Type 2 SPD 4 Pole 230/400 Volt 20KA IT Mersen 44020420 Type 2 surge protection device from the Surge-Trap K2 Series designed to protect…
K2-4P440 Mersen Surge Protector Type 2 SPD 4 Pole 230/400 Volt 20KA IT Mersen 44020420 Type 2 surge protection device from the Surge-Trap K2 Series designed to protect…
  • Type 2 · IT · 400 V
£146.46 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: 44020420
K1-2P320 Mersen Surge Protector Type 1+2 SPD 2 Pole 277 Volt 20KA TNS Mersen K1-2P320 Type 1+2 surge protection device with 320 V AC operating voltage, 12.5 kA…
K1-2P320 Mersen Surge Protector Type 1+2 SPD 2 Pole 277 Volt 20KA TNS Mersen K1-2P320 Type 1+2 surge protection device with 320 V AC operating voltage, 12.5 kA…
  • Type 1+2 · 20 kA · TN-S
£178.42 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: 44120212
7P.03.8.260.1025 Finder Surge Protection Device SPD arresters 3ph Finder 7P.03.8.260.1025 Type 1+2 surge protection device for three-phase TN-C systems, featuring varistor and GDT…
7P.03.8.260.1025 Finder Surge Protection Device SPD arresters 3ph Finder 7P.03.8.260.1025 Type 1+2 surge protection device for three-phase TN-C systems, featuring varistor and GDT…
  • Type 1+2 · 30 kA · TN-C
£665.75 ex. VAT
Manufacturer Lead Time Standard Manufacturer Lead Time 6-8 Weeks, Call For Express Delivery Options
SKU: 7P.03.8.260.1025
Mersen Surge Protector Type 1 SPD 1 Pole 120 Volt 50KA L-N Mersen 83010103 Surge-Trap Monobloc STMT1 Type 1 surge protection device, catalogue number STMT1-50K150V-1P, rated at…
Mersen Surge Protector Type 1 SPD 1 Pole 120 Volt 50KA L-N Mersen 83010103 Surge-Trap Monobloc STMT1 Type 1 surge protection device, catalogue number STMT1-50K150V-1P, rated at…
  • Type 1 · 1-pole · 120 V
£162.03 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: 83010103
Mersen Surge Protector Type 2 SPD 3 Pole 690/1000 Volt 15KA TNC Remote Indication Mersen STPT2-30K750V-3PM Type 2 surge protection device with 30 kA Imax, 690 V IT /…
Mersen Surge Protector Type 2 SPD 3 Pole 690/1000 Volt 15KA TNC Remote Indication Mersen STPT2-30K750V-3PM Type 2 surge protection device with 30 kA Imax, 690 V IT /…
  • Type 2 · 15 kA · TN-C
£156.39 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: 83020103
Mersen Surge Protector Type 2 SPD 3 Pole 1000 Volt D/C 20KA Y-PV Mersen 83020140 STPT2-40K1000V-YPV Type 2 photovoltaic surge protection device with 40 kA maximum discharge current,…
Mersen Surge Protector Type 2 SPD 3 Pole 1000 Volt D/C 20KA Y-PV Mersen 83020140 STPT2-40K1000V-YPV Type 2 photovoltaic surge protection device with 40 kA maximum discharge current,…
  • Type 2 · 20 kA · 3-pole
£135.37 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: 83020140
SP12-100K-N Mersen Type 1+2 1P Neutral Replacement Cartridge Mersen 83120008 SP12-100K-N Type 1+2 neutral replacement cartridge with 100 kA lightning impulse current rating…
SP12-100K-N Mersen Type 1+2 1P Neutral Replacement Cartridge Mersen 83120008 SP12-100K-N Type 1+2 neutral replacement cartridge with 100 kA lightning impulse current rating…
  • Type 1+2 · 1-pole
£126.70 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: 83120008
Mersen Surge Protector Type 1+2 SPD 3 Pole 208 Volt 20KA TNC Remote Indication Mersen STPT12-12K150V-3PM Type 1+2 pluggable surge protection device with 12.5 kA lightning impulse current, 150…
Mersen Surge Protector Type 1+2 SPD 3 Pole 208 Volt 20KA TNC Remote Indication Mersen STPT12-12K150V-3PM Type 1+2 pluggable surge protection device with 12.5 kA lightning impulse current, 150…
  • Type 1+2 · 20 kA · TN-C
£221.51 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: 83120129
Mersen Surge Protector Type 1+2 SPD 2 Pole 230 Volt 25KA TNS Remote Indication Mersen STPT12-25K275V-2PM Type 1+2 surge protection device with 25 kA lightning impulse current rating, 275…
Mersen Surge Protector Type 1+2 SPD 2 Pole 230 Volt 25KA TNS Remote Indication Mersen STPT12-25K275V-2PM Type 1+2 surge protection device with 25 kA lightning impulse current rating, 275…
  • Type 1+2 · 25 kA · TN-S
£223.22 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: 83120157
Mersen Surge Protector Type 2+3 SPD 1 Pole Neutral 10KA N-PE Mersen 83230106 STPT23-20K-N Type 2+3 pluggable surge protection device for neutral protection applications, with 20…
Mersen Surge Protector Type 2+3 SPD 1 Pole Neutral 10KA N-PE Mersen 83230106 STPT23-20K-N Type 2+3 pluggable surge protection device for neutral protection applications, with 20…
  • Type 2+3 · 10 kA · 1-pole
£34.58 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: 83230106
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