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

4483 Products showing for Surge Protection Components

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1 of 225
In 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 (1 pack of 5 units)
R 142,73(exc. VAT)
R 28,546/unit
In Stock
Dehn, DPA M CLD Surge Arrester 48V Maximum Voltage Rating 0.001 kA Maximum Surge Current Surge Arrester
  • RS stock no. 193-6599
  • Mfr. Part No. DPA M CLD RJ45B 48
Subtotal (1 unit)
R 3 806,66(exc. VAT)
R 3 806,66/unit
In Stock
Dehn, DG Modular Surge Protector 500V Maximum Voltage Rating 20 kA Maximum Surge Current Type 2 Arrester
  • RS stock no. 847-0968
  • Mfr. Part No. DG S 385
Subtotal (1 unit)
R 1 946,92(exc. VAT)
R 1 946,92/unit
In Stock
Dehn, BVT Surge Protector 35V dc Maximum Voltage Rating 2 kA Maximum Surge Current Lightning Arrester
  • RS stock no. 768-1851
  • Mfr. Part No. BVT AD 24
Subtotal (1 unit)
R 11 137,52(exc. VAT)
R 11 137,52/unit
In Stock
TDK, Automative E Metal Oxide Varistor 2000 pF 45 A, Clamping 77 V, Varistor 47 V, 1812
  • RS stock no. 246-9793
  • Mfr. Part No. B72580T0300K062
Subtotal (1 tape of 10 units)
R 78,98(exc. VAT)
R 7,898/unit
Last RS stock
TDK, AdvancedD Metal Oxide Varistor 410 pF 100 A, Clamping 1500 V, Varistor 910 V
  • RS stock no. 241-6790
  • Mfr. Part No. B72220S2551K101
Subtotal (1 unit)
R 31,30(exc. VAT)
R 31,30/unit
In Stock
ABB, OVR Surge Protection Device 275V Maximum Voltage Rating 40 kA Maximum Surge Current Surge Protection Device
  • RS stock no. 175-2600
  • Mfr. Part No. 2CTB815704R2600 OVR T2 40-275s C QS
Subtotal (1 unit)
R 1 529,10(exc. VAT)
R 1 529,10/unit
In Stock
TDK, Standard Metal Oxide Varistor 430 pF 25 A, Clamping 395 V, Varistor 240 V
  • RS stock no. 289-7036
  • Mfr. Part No. B72210S0151K101
Subtotal (1 pack of 5 units)
R 33,55(exc. VAT)
R 6,71/unit
In Stock
Amphenol Advanced Sensors NTC Thermistor, NTC Type 5 Ω
  • RS stock no. 257-9502
  • Mfr. Part No. CL-160
Subtotal (1 pack of 5 units)
R 81,76(exc. VAT)
R 16,352/unit
Last RS stock
TDK Thermistor, NTC Type 33 Ω 7 mm 15 mm 7 mm
  • RS stock no. 216-1438P
  • Mfr. Part No. B57237S0330M000
Subtotal 1 unit (supplied in a bag)
R 19,40(exc. VAT)
R 19,40/unit
Last RS stock
TDK, EHV 90 V dc 15 kA, Through Hole 3 Electrode Arrester Gas Discharge Tube
  • RS stock no. 308-8277
  • Mfr. Part No. B88069X8300B502
Subtotal (1 unit)
R 39,71(exc. VAT)
R 39,71/unit
In Stock
Amphenol Advanced Sensors Thermistor 10 Ω
  • RS stock no. 210-4310
  • Mfr. Part No. CL-120
Subtotal (1 pack of 10 units)
R 163,32(exc. VAT)
R 16,332/unit
Last RS stock
Bourns, MOV-14D Metal Oxide Varistor 430 pF 50 A, Clamping 775 V, Varistor 470 V
  • RS stock no. 851-8335
  • Mfr. Part No. MOV-14D471K
Subtotal (1 unit)
R 6,13(exc. VAT)
R 6,13/unit
In Stock
TDK, AdvancedD Metal Oxide Varistor 850 pF 100 A, Clamping 510 V, Varistor 430 V
  • RS stock no. 241-6783
  • Mfr. Part No. B72220S2271K101
Subtotal (1 unit)
R 16,99(exc. VAT)
R 16,99/unit
In Stock
TDK Thermistor, NTC Type 10 Ω 18 mm 31 mm 7 mm
  • RS stock no. 121-8219
  • Mfr. Part No. B57127P0100M301
Subtotal (1 bag of 5 units)
R 145,44(exc. VAT)
R 29,088/unit
In Stock
TDK Thermistor, NTC Type 3 kΩ 6.5 mm 2.41 mm
  • RS stock no. 528-8508
  • Mfr. Part No. B57861S0302J040
Subtotal (1 unit)
R 23,19(exc. VAT)
R 23,19/unit
In Stock
TDK Thermistor, NTC Type 10 Ω 16 mm 11.5 mm 6 mm
  • RS stock no. 211-7958
  • Mfr. Part No. B57236S0100M000
Subtotal (1 unit)
R 17,66(exc. VAT)
R 17,66/unit
Currently unavailable
TDK Thermistor, NTC Type 5 Ω 6 mm 9.5 mm 6 mm
  • RS stock no. 467-614P
  • Mfr. Part No. B57235S0509M000
Subtotal 1 unit (supplied in a bag)
R 13,49(exc. VAT)
R 13,49/unit
In Stock
TDK Thermistor, NTC Type 10 Ω, Leaded and Coated Disks 18 mm 11 mm 6 mm
  • RS stock no. 769-1861
  • Mfr. Part No. B57211P0100M301
Subtotal (1 pack of 5 units)
R 78,83(exc. VAT)
R 15,766/unit
In Stock
TDK, Standard Metal Oxide Varistor 260 pF 50 A, Clamping 2970 V, Varistor 750 V
  • RS stock no. 289-7216
  • Mfr. Part No. B72214S0461K101
Subtotal (1 pack of 5 units)
R 57,20(exc. VAT)
R 11,44/unit
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