Surge Protection Components

It is important to protect any electrical equipment or circuitry you have from the harmful effects of power surges, so choose from our range of protective devices and components today. We’re able to offer you a wide variety of quality products from leading manufacturers including Bourns, Huber & Suhner, ON Semiconductor and Siemens.

How does surge protection work?

Power surges are a sudden increase in the electrical current being routed into power outlets. If a power surge happens, irreparable damage to equipment can be caused.

Surge protection is an essential and effective way of preventing this damage from occurring and can take many forms, from specialist plug sockets that absorb the additional voltage to components that can be used in the equipment itself.

What causes a power surge?

Power surges happen when the flow of electricity is briefly interrupted and started again. They can occur when equipment starts up or shut off. Classic examples of this would be air conditioning units, refrigeration equipment or motor-driven devices.

Power surges can also happen naturally, like a lightning strike or power lines coming down in a storm. They can also happen after mains power cuts when the power returns.

What is the difference between a surge and a spike?

  • If overvoltage increases for three nanoseconds or more this is called a surge.
  • If overvoltage increases for one or two nanoseconds this is called a spike.

What types of surge protection components are there?

Gas discharge tubes- a glass tube which is sealed at both ends, contains two electrodes and is filled with a gas that conducts electricity when a high voltage is applied. This type of component can be used to protect sensitive circuits.

Surge suppressor units - a common type of component, a surge suppressor unit can be built into a device, such as a power strip, or used as a standalone component.

Switching spark gap - these are used to switch between circuits quickly and are often used in the building and automotive industries.

Gas Discharge Tubes
Gas Discharge Tubes
Surge Suppressor Units
Surge Suppressor Units
Switching Spark Gaps
Switching Spark Gaps
Thermistor ICs
Thermistor ICs
Varistors
Varistors

4432 Products showing for Surge Protection Components

1 of 222
In Stock
Sollatek, Hivoltguard Surge Suppressor Unit 230V Maximum Voltage Rating 6.5 kA Maximum Surge Current Overvoltage
  • RS Stock No. 311-5880
  • Mfr. Part No. 92615000
Subtotal (1 unit)
€53.33(exc. VAT)
€53.33/unit
In Stock
Bourns, MOV-14D Metal Oxide Varistor 460 pF 50 A, Clamping 2970 V, Varistor 430 V, Molded Radial
  • RS Stock No. 851-8322
  • Mfr. Part No. MOV-14D431K
Subtotal (1 unit)
€0.43(exc. VAT)
€0.43/unit
In Stock
TDK, Standard Metal Oxide Varistor 3.8 nF 100 A, Clamping 2970 V, Varistor 82 V
  • RS Stock No. 289-7626P
  • Mfr. Part No. B72220S0500K101
Subtotal 5 units (supplied in a bag)
€4.14(exc. VAT)
€0.828/unit
In Stock
Dehn, BXTU Surge Arrester 180 V dc, 127V ac Maximum Voltage Rating 20 kA Maximum Surge Current Lightning Arrester
  • RS Stock No. 768-1820
  • Mfr. Part No. BXTU ML2 BD S 0-180
Subtotal (1 unit)
€375.64(exc. VAT)
€375.64/unit
In Stock
Mersen, STMT23 Surge Protector 230V Maximum Voltage Rating 10 kA Maximum Surge Current Type 2+3/Class II+III
  • RS Stock No. 179-3083
  • Mfr. Part No. 83230512 / STMT23-10K320V-SP-SF
Subtotal (1 unit)
€71.90(exc. VAT)
€71.90/unit
In Stock
Vishay, VDRS - E Metal Oxide Varistor 55 pF 5 A, Clamping 695 V, Varistor 430 V
  • RS Stock No. 178-087
  • Mfr. Part No. VDRS05C275BSE
Subtotal (1 pack of 5 units)
€3.37(exc. VAT)
€0.674/unit
In Stock
Panasonic, V Surge Absorber 3.4 nF 2.5 A, Clamping 53 V, Varistor 27 V
  • RS Stock No. 720-9790
  • Mfr. Part No. ERZV07D270
Subtotal (1 pack of 10 units)
€1.30(exc. VAT)
€0.13/unit
In Stock
Dehn, BXT Universal Base Base Element
  • RS Stock No. 768-1817
  • Mfr. Part No. BXT BAS
Subtotal (1 unit)
€101.28(exc. VAT)
€101.28/unit
In Stock
Dehn, DG M TNS ACI Surge Arrester 275V Maximum Voltage Rating Type 2/Class Ii
  • RS Stock No. 193-6588
  • Mfr. Part No. DG M TNS ACI 275 FM
Subtotal (1 unit)
€1,049.45(exc. VAT)
€1,049.45/unit
In Stock
WJ Furse, ESP 240 Surge Suppressor Unit 280V Maximum Voltage Rating 10 kA Maximum Surge Current Low Current Mains
  • RS Stock No. 456-8128
  • Mfr. Part No. 7TCA085460R0083 ESP 240-5A
Subtotal (1 unit)
€218.03(exc. VAT)
€218.03/unit
In Stock
TDK Thermistor, NTC Type 10 kΩ 2 mm 3 mm 5 mm
  • RS Stock No. 191-2263
  • Mfr. Part No. B57164K0103J000
Subtotal (1 pack of 5 units)
€2.05(exc. VAT)
€0.41/unit
Temporarily out of stock
Telegartner, J01028A Surge Suppressor Unit 90V Maximum Voltage Rating Type N Arrester
  • RS Stock No. 712-3153
  • Mfr. Part No. J01028A0044
Subtotal (1 unit)
€132.56(exc. VAT)
€132.56/unit
In Stock
TDK Thermistor, PTC Type 100 Ω 10 mm
  • RS Stock No. 706-2796
  • Mfr. Part No. B59100M1100A070
Subtotal (1 unit)
€3.41(exc. VAT)
€3.41/unit
Temporarily out of stock
TDK, B722 Standard Metal Oxide Varistor 4.35 nF 5 A, Clamping 2970 V, Varistor 27 V
  • RS Stock No. 170-2903
  • Mfr. Part No. B72210S0170K101
Subtotal (1 reel of 500 units)
€105.50(exc. VAT)
€0.211/unit
Stocked by manufacturer
Siemens, SENTRON Surge Protection Device 255V ac Maximum Voltage Rating 100 kA Maximum Surge Current Lightning Arrester
  • RS Stock No. 772-982
  • Mfr. Part No. 5SD7401-1
Subtotal (1 unit)
€417.00(exc. VAT)
€417.00/unit
In Stock
TDK Thermistor, PTC Type 2.6 Ω 29.5 mm 26 mm 5 mm
  • RS Stock No. 191-1765
  • Mfr. Part No. B59810C0120A070
Subtotal (1 unit)
€9.24(exc. VAT)
€9.24/unit
In Stock
Bourns, GMOV Varistor 4 pF 6000 A, Clamping 675 V, Varistor 320 V dc, 250 Vrms, Disc
  • RS Stock No. 186-2131
  • Mfr. Part No. GMOV-14D251K
Subtotal (1 pack of 5 units)
€8.22(exc. VAT)
€1.644/unit
In Stock
Phoenix Contact Coaxial Surge Protection, 20 kA
  • RS Stock No. 648-6028
  • Mfr. Part No. 2818148
Subtotal (1 unit)
€134.80(exc. VAT)
€134.80/unit
In Stock
TDK Thermistor, NTC Type 2.5 Ω 7 mm 15 mm 7 mm
  • RS Stock No. 216-1422
  • Mfr. Part No. B57237S0259M000
Subtotal (1 unit)
€1.08(exc. VAT)
€1.08/unit
In Stock
Vishay Thermistor, PTC Type 10 mm 30 mm 5.5 mm
  • RS Stock No. 252-771
  • Mfr. Part No. PTCCL05H150HBE
Subtotal (1 pack of 5 units)
€3.22(exc. VAT)
€0.644/unit
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