Surge Suppressor Units

Surge suppressor units are a kind of protective device used to ensure that electrical equipment is not damaged by a sudden voltage spike. This can be caused by a lightning strike or simply an electrical fault. Surge suppressors are often built into devices such as power strips, but they are also available as standalone units.

How do surge suppressor units work?

Surge suppressor units protect devices by blocking or diverting the excess voltage to the ground. They are triggered when the voltage exceeds a pre-determined threshold. They are often used as part of power distribution units, and sometimes come with a warning light to indicate pre-failure.

Types of surge suppressor units

Surge suppressor units can vary in a number of ways, including the mounting method they require, their maximum surge current, and the type of electrical equipment they are to be used with. For example:

  • a coaxial surge suppressor is used with coaxial cable
  • a category 6 surge suppressor is used with category 6 cables

...
Read more Read less

Filters

Viewing 21 - 40 of 510 products
Results per page
Description Price Suppressor Type Maximum Voltage Rating Mounting Type Maximum Surge Current Series Length Depth Height Dimensions Lead Pitch Minimum Operating Temperature Maximum Operating Temperature Priced to Clear
RS Stock No. 251-3823
BrandMTL
£114.66
Each
Units
Surge Protection Device 22 V ac, 32 V dc DIN Rail 20kA SD 7mm 109.6mm 99mm 7 x 109.6 x 99mm - -40°C +80°C -
RS Stock No. 905-5771
Mfr. Part No.SNUB0000
BrandRed Lion
£6.72
Each
Units
Inductive Load Suppressor 250 V dc - - R-C 19mm 8.5mm 125mm 19 x 8.5 x 23mm - - - -
RS Stock No. 456-8178
Mfr. Part No.ESP 30E
BrandWJ Furse
£103.85
Each
Units
Twisted Pair Surge Protector 36.7 V DIN Rail 5 kA, 20 kA ESP E 120mm 19mm 54mm 120 x 54 x 19mm - -25°C +70°C -
RS Stock No. 456-8140
Mfr. Part No.ESP 240-16A
BrandWJ Furse
£147.00
Each
Units
Low Current Mains Protector 280 V DIN Rail 10kA ESP 240 120mm 38mm 54mm 120 x 54 x 38mm - -40°C +70°C -
RS Stock No. 768-1842
Mfr. Part No.DPA M CLE RJ45B 48
BrandDehn
£128.99
Each
Units
Surge Arrester 34 V ac, 57 V dc DIN Rail 10kA DPA 75mm 36mm 19mm 75 x 36 x 19mm - -40°C +80°C -
RS Stock No. 198-0452
Mfr. Part No.ESP TN
BrandWJ Furse
£83.40
Each
Units
Telephone Line Protector 296 V DIN Rail 5 kA, 20 kA ESP D/TN 120mm 19mm 54mm 120 x 54 x 19mm - -25°C +70°C -
RS Stock No. 111-642
Mfr. Part No.3402.17.A
£150.10
Each
Units
EMP Protector 230 V Panel Mount 20 kA, 30 kA 3402 69mm - 25.9mm - - -40°C +85°C -
RS Stock No. 788-6763
Mfr. Part No.ESP Cat-6/PoE
BrandWJ Furse
£292.23
Each
Units
Cat-6 PoE Surge Protector 58 V DIN Rail 1 kA, 10 kA ESP Cat-6 106mm 24mm 60mm 106 x 24 x 60mm - -40°C +80°C -
RS Stock No. 226-6448
Mfr. Part No.VSU2W
£23.17
Each
Units
Transient Voltage Suppressor 275 V - 40A VSU 150mm 40mm 40mm 150 x 40 x 40mm - - - -
RS Stock No. 788-6744
Mfr. Part No.ESP RS485
BrandWJ Furse
£107.04
Each
Units
RS485 Surge Protector 16.7 V DIN Rail 5 kA, 20 kA - 105mm 38mm 54mm 120 x 54 x 19mm - -40°C +80°C -
RS Stock No. 768-1791
Mfr. Part No.DR M 2P 255
BrandDehn
£59.24
Each
Units
Surge Arrester 255 V ac/dc DIN Rail 5kA DR 90mm 18mm 66mm 90 x 18 x 66mm - -40°C +80°C -
RS Stock No. 788-6769
Mfr. Part No.ESP Cat-6
BrandWJ Furse
£261.22
Each
Units
Cat-6 Surge Protector 5 V DIN Rail 1 kA, 10 kA ESP Cat-6 106mm 24mm 60mm 106 x 24 x 60mm - -40°C +80°C -
RS Stock No. 768-1750
Mfr. Part No.DG M TN 275 FM
BrandDehn
£106.62
Each
Units
Type 2 Arrester 275 V ac DIN Rail 40kA DG 36mm 66mm 90mm 36 x 66 x 90mm - -40°C +80°C -
RS Stock No. 198-0424
Mfr. Part No.ESP 15D
BrandWJ Furse
£75.59
Each
Units
Twisted Pair Surge Protector 19 V DIN Rail 5 kA, 20 kA ESP D/TN 120mm 19mm 54mm 120 x 54 x 19mm - -25°C +70°C -
RS Stock No. 802-6542
Mfr. Part No.2798844
£67.82
Each
Units
Surge Arrester Protection Module 230 V ac DIN Rail 40kA VAL-MS 230 ST 17.7mm 54.5mm 52.4mm 17.7 x 54.5 x 52.4mm - -40°C +80°C -
RS Stock No. 786-9345
Mfr. Part No.DSH TNS 255
BrandDehn
£589.00
Each
Units
Lightning Arrester 255 V ac DIN Rail 12.5 kA, 50 kA DSH 72mm 72mm 90mm 72 x 72 x 90mm - -40°C +80°C -
RS Stock No. 761-5766
Mfr. Part No.VSU4W
BrandDeltron
£33.73
Each
Units
Voltage Suppression Unit 275 V Screw Mount 6.5A VSU 40mm 40mm 35mm 40 x 40 x 35mm - - - -
RS Stock No. 793-3783
Mfr. Part No.ESP 240-16A/BX
BrandWJ Furse
£148.99
Each
Units
Low Current Mains Protector 280 V DIN Rail 10kA ESP 240 120mm 56mm 80mm 120 x 80 x 56mm - -40°C +80°C -
RS Stock No. 768-1763
Mfr. Part No.DG M TT 2P 275 FM
BrandDehn
£134.81
Each
Units
Type 2 Arrester 275 V ac DIN Rail 40kA DG 36mm 66mm 90mm 36 x 66 x 90mm - -40°C +80°C -
RS Stock No. 793-3780
Mfr. Part No.ESP TN/JP
BrandWJ Furse
£127.06
Each
Units
BT Line Surge Protector 296 V DIN Rail 1 kA, 10 kA ESP TN/JP 106mm 24mm 60mm 106 x 24 x 60mm - -40°C +80°C -
Related Products
The Cooper Bussman Photovoltaic SPD solution consists of ...
Description:
The Cooper Bussman Photovoltaic SPD solution consists of a base and locking module that features a combined disconnection and short-circuiting (shunting) device with safe electrical isolation to prevent fire damage due to DC arcs. An integrated DC fuse allows safe module replacement without arc formation. In case of insulation faults ...
Voltage surges, often referred to as spikes or ...
Description:
Voltage surges, often referred to as spikes or transients are typically caused by switching of fluorescent lights, fuses blowing or nearby lightning activity. The worst voltage surges are usually caused by lightning and can reach up to 6000V, with current surges of over 3000A. The maximum size of the voltage ...
Mains module with surge protection and floating break ...
Description:
Mains module with surge protection and floating break contact for installation into terminal equipment to be protected. Complete surge protective circuit for devices with a.c.voltage power supply Floating remote signalling contact (break contact) with test option for fault indication For installation onto printed circuit boards. Dehn PCB Mounting Surge Arresters. ...
The D/ DS range offers a further enhanced ...
Description:
The D/ DS range offers a further enhanced series to the existing ESP range of mains protector range for specific systems, complementing the existing D1 Series.Having a low let through voltage combined with the mains test Type 1, 2 and 3 to BS EN 61643, the D/ DS series is ...