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

4374 Products showing for Surge Protection Components

1 of 219
Temporarily out of 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)
R 1 402,45(exc. VAT)
In Stock
Littelfuse, LA Metal Oxide Varistor 450 pF 100 A, Clamping 2700 V, Varistor 184 to 1800 V, Disc
  • RS stock no. 800-7068
  • Mfr. Part No. V275LA20AP
Subtotal (1 pack of 10 units)
R 106,14(exc. VAT)
In Stock
Littelfuse, LA Varistor Metal Oxide Varistor 200 pF 100 A, Clamping 2700 V, Varistor 184 to 1800 V, Disc
  • RS stock no. 800-7065
  • Mfr. Part No. V275LA10P
Subtotal (1 pack of 10 units)
R 94,35(exc. VAT)
Last RS stock
Littelfuse, LA Metal Oxide Varistor 150 pF 10 A, Clamping 430 V, Varistor 275 V
  • RS stock no. 878-2022
  • Mfr. Part No. V150LA1P
Subtotal (1 pack of 100 units)
R 449,90(exc. VAT)
In Stock
EPCOS, Standard Metal Oxide Varistor 340 pF 100 A, Clamping 2970 V, Varistor 18 to 1800 V
  • RS stock no. 138-9296
  • Mfr. Part No. B72220S0681K101
Subtotal (1 bag of 5 units)
R 166,19(exc. VAT)
In Stock
Dehn, DR Modular Surge Protector 255V ac/dc Maximum Voltage Rating 5 kA Maximum Surge Current Surge Arrester
  • RS stock no. 768-1782
  • Mfr. Part No. DR M 2P 255 FM
Subtotal (1 unit)
R 4 058,52(exc. VAT)
In Stock
ABB, OVR Surge Protection Device 275V Maximum Voltage Rating 40 kA Maximum Surge Current Surge Protection Device
  • RS stock no. 175-2595
  • Mfr. Part No. 2CTB815704R0200 OVR T2 1N 40-275s P TS QS
Subtotal (1 unit)
R 3 012,29(exc. VAT)
In Stock
Dehn, DG Modular Surge Protector 440V Maximum Voltage Rating 40 kA Maximum Surge Current Type 2 Arrester
  • RS stock no. 847-0961
  • Mfr. Part No. DG M TNC 440 FM
Subtotal (1 unit)
R 8 412,75(exc. VAT)
In Stock
Dehn, DG Surge Protection Plug 350V dc Maximum Voltage Rating 40 kA Maximum Surge Current Surge Arrester Protection
  • RS stock no. 768-1772
  • Mfr. Part No. DG MOD 275
Subtotal (1 unit)
R 2 435,01(exc. VAT)
In Stock
EPCOS, B72220 Varistor 630 pF 100 A, Clamping 2970 V, Varistor 18 to 1800 V
  • RS stock no. 204-2208
  • Mfr. Part No. B72220S0271K101
Subtotal (1 pack of 5 units)
R 119,50(exc. VAT)
In Stock
Phoenix Contact, TTC Surge Protector 30V dc Maximum Voltage Rating 10 kA Maximum Surge Current Surge Protection Device
  • RS stock no. 135-7153
  • Mfr. Part No. 2906794
Subtotal (1 unit)
R 3 211,48(exc. VAT)
In Stock
Littelfuse, LA Metal Oxide Varistor 380 pF 100 A, Clamping 2700 V, Varistor 184 to 1800 V, Disc
  • RS stock no. 171-0006
  • Mfr. Part No. V320LA20AP
Subtotal (1 bag of 600 units)
R 2 998,20(exc. VAT)
In Stock
RS PRO Thermistor, NTC Type 10 kΩ 63.5 mm 63.5 mm 2.4 mm
  • RS stock no. 151-237
Subtotal (1 unit)
R 48,87(exc. VAT)
In Stock
Dehn, DR Modular Surge Protector 255V ac/dc Maximum Voltage Rating 5 kA Maximum Surge Current Surge Arrester
  • RS stock no. 768-1791
  • Mfr. Part No. DR M 2P 255
Subtotal (1 unit)
R 3 952,69(exc. VAT)
Last RS stock
KYOCERA AVX Thermistor, NTC Type 10 kΩ 3 mm 3.5 mm 3 mm
  • RS stock no. 697-4465
  • Mfr. Part No. ND03N00103JCC
Subtotal (1 pack of 5 units)
R 84,03(exc. VAT)
In Stock
Panasonic, V Surge Absorber 2.2 nF 50 A, Clamping 40 V, Varistor 18 V
  • RS stock no. 720-9942
  • Mfr. Part No. ERZV14D151
Subtotal (1 pack of 5 units)
R 54,80(exc. VAT)
In Stock
Phoenix Contact, TTC Surge Protector 30V dc Maximum Voltage Rating 1 kA Maximum Surge Current Surge Protection Device
  • RS stock no. 135-7139
  • Mfr. Part No. 2906808
Subtotal (1 unit)
R 1 541,93(exc. VAT)
Last RS stock
EPCOS, EHV 90 V 15 kA, Through Hole 3 Electrode Arrester Gas Discharge Tube
  • RS stock no. 308-8277
  • Mfr. Part No. B88069X8300B502
Subtotal (1 unit)
R 35,80(exc. VAT)
In Stock
Dehn, DG Modular Surge Protector 275V ac Maximum Voltage Rating 40 kA Maximum Surge Current Type 2 Arrester
  • RS stock no. 768-1748
  • Mfr. Part No. DG M TT 275 FM
Subtotal (1 unit)
R 15 022,04(exc. VAT)
In Stock
Eaton, SD Surge Suppressor Unit 32 V dc, 22V ac Maximum Voltage Rating 20 kA Maximum Surge Current Surge Protection
  • RS stock no. 251-3823
Subtotal (1 unit)
R 4 796,83(exc. VAT)
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