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

4465 Products showing for Surge Protection Components

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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
TDK, Standard Metal Oxide Varistor 380 pF 25 A, Clamping 455 V, Varistor 270 V
  • RS Stock No. 289-7042
  • Mfr. Part No. B72210S0171K101
Subtotal (5 units, in packs of 5)
€1.44(exc. VAT)
€0.288/unit
In Stock
TDK, Standard Metal Oxide Varistor 3.8 nF 100 A, Clamping 2970 V, Varistor 82 V
  • RS Stock No. 289-7626
  • Mfr. Part No. B72220S0500K101
Subtotal (5 units, in packs of 5)
€4.14(exc. VAT)
€0.828/unit
In Stock
TDK NTC Thermistor, NTC Type 10 kΩ 5.5 mm 2.5 mm 2.5 mm
  • RS Stock No. 146-0341
  • Mfr. Part No. B57871S0103F002
Subtotal (10 units, in packs of 10)
€16.44(exc. VAT)
€1.644/unit
In Stock
TDK, Standard Metal Oxide Varistor 380 pF 25 A, Clamping 455 V, Varistor 270 V
  • RS Stock No. 289-7042P
  • Mfr. Part No. B72210S0171K101
Subtotal (5 units, supplied in a bag)
€1.44(exc. VAT)
€0.288/unit
In Stock
Vishay NTC Thermistor, NTC Type 10 kΩ 10 mm 52 mm 3 mm
  • RS Stock No. 179-3906
  • Mfr. Part No. NTCLE413E2103F520L
Subtotal (25 units, in bags of 25)
€23.65(exc. VAT)
€0.946/unit
In Stock
TDK, Standard Metal Oxide Varistor 1.35 nF 100 A, Clamping 455 V, Varistor 270 V
  • RS Stock No. 289-7288P
  • Mfr. Part No. B72220S0171K101
Subtotal (5 units, supplied in a bag)
€3.55(exc. VAT)
€0.71/unit
In Stock
TDK, Standard Metal Oxide Varistor 11.1 nF 20 A, Clamping 77 V, Varistor 39 V
  • RS Stock No. 289-7575
  • Mfr. Part No. B72220S0250K101
Subtotal (5 units, in packs of 5)
€2.75(exc. VAT)
€0.55/unit
In Stock
ABB, OVR Surge Protection Device 400V ac Maximum Voltage Rating 80 kA Maximum Surge Current Surge Protective Devices SPD
  • RS Stock No. 231-9984
  • Mfr. Part No. 2CTB815710R1900 OVR T1-T2 3N 12.5-275s
Subtotal (1 unit)
€561.85(exc. VAT)
€561.85/unit
In Stock
Schneider Electric, EZ9L Surge Suppressor Unit 230V Maximum Voltage Rating 20 kA Maximum Surge Current Surge Arrester
  • RS Stock No. 207-219
  • Mfr. Part No. EZ9L33620
Subtotal (1 unit)
€78.34(exc. VAT)
€78.34/unit
In Stock
Dehn, DG Modular Surge Protector 275V ac Maximum Voltage Rating 40 kA Maximum Surge Current Type 2 Arrester
  • RS Stock No. 768-1754
  • Mfr. Part No. DG M TN 275
Subtotal (1 unit)
€195.20(exc. VAT)
€195.20/unit
In Stock
Vishay NTC Thermistor, NTC Type 10 kΩ, Ring lug 165.7 mm
  • RS Stock No. 782-884
  • Mfr. Part No. NTCALUG01T103G501A
Subtotal (1 unit)
€3.66(exc. VAT)
€3.66/unit
Temporarily out of stock
Bourns, GMOV Varistor 4 pF 6000 A, Varistor 275 V ac, 350 V dc, Disc
  • RS Stock No. 186-2134
  • Mfr. Part No. GMOV-14D271K
Subtotal (5 units, in packs of 5)
€7.85(exc. VAT)
€1.57/unit
In Stock
TDK NTC Thermistor, NTC Type 10 kΩ 6.5 mm 2.41 mm
  • RS Stock No. 146-0339
  • Mfr. Part No. B57867S0103F140
Subtotal (5 units, in packs of 5)
€9.42(exc. VAT)
€1.884/unit
In Stock
Dehn, DSH TT Surge Arrester 255V Maximum Voltage Rating 50 kA Maximum Surge Current Surge Arrester
  • RS Stock No. 193-6594
  • Mfr. Part No. DSH TT 255 FM
Subtotal (1 unit)
€1,464.39(exc. VAT)
€1,464.39/unit
In Stock
Vishay NTC Thermistor, NTC Type 10 kΩ 10 mm 1 m 3 mm
  • RS Stock No. 179-3894
  • Mfr. Part No. NTCLE413E2103F102L
Subtotal (10 units, in bags of 10)
€11.32(exc. VAT)
€1.132/unit
In Stock
Panasonic, V Surge Absorber 2.2 nF 50 A, Clamping 40 V, Varistor 150 V
  • RS Stock No. 720-9942
  • Mfr. Part No. ERZV14D151
Subtotal (5 units, in packs of 5)
€1.75(exc. VAT)
€0.35/unit
In Stock
TDK, Standard Metal Oxide Varistor 3.6 nF 100 A, Clamping 165 V, Varistor 100 V
  • RS Stock No. 289-7244
  • Mfr. Part No. B72220S0600K101
Subtotal (5 units, in packs of 5)
€4.14(exc. VAT)
€0.828/unit
In Stock
Weidmüller, VARITECTOR Surge Protection Device 42V Maximum Voltage Rating 10 kA Maximum Surge Current
  • RS Stock No. 902-8063
  • Mfr. Part No. 1063930000
Subtotal (1 unit)
€77.92(exc. VAT)
€77.92/unit
In Stock
WJ Furse, ESP D/TN Surge Suppressor Unit 19V Maximum Voltage Rating 20 kA Maximum Surge Current Twisted Pair Surge
  • RS Stock No. 198-0424
  • Mfr. Part No. 7TCA085400R0089 ESP 15D
Subtotal (1 unit)
€158.49(exc. VAT)
€158.49/unit
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