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

4298 Products showing for Surge Protection Components

1 of 215
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)
R 1 419,99(exc. VAT)
R 1 419,99/unit
In Stock
ABB, OVR Surge Protection Device 275V Maximum Voltage Rating 80 kA Maximum Surge Current Surge Protection Device
  • RS stock no. 175-2589
  • Mfr. Part No. 2CTB815710R0700 OVR T1-T2 3N 12.5-275s P TS QS
Subtotal (1 unit)
R 6 799,72(exc. VAT)
R 6 799,72/unit
In Stock
Huber+Suhner, 3402 Surge Suppressor Unit 230V Maximum Voltage Rating 20 kA Maximum Surge Current EMP Protector
  • RS stock no. 111-642
  • Mfr. Part No. 3402.17.A
Subtotal (1 unit)
R 8 633,17(exc. VAT)
R 8 633,17/unit
In Stock
Weidmüller, 1348 Surge Suppressor Unit 48V Maximum Voltage Rating 10 kA Maximum Surge Current Cat-6 Surge Protector
  • RS stock no. 249-3332
  • Mfr. Part No. 1348590000
Subtotal (1 unit)
R 2 817,16(exc. VAT)
R 2 817,16/unit
In Stock
RS PRO, RC RC Network Capacitor 500V Maximum Voltage Rating Mains Protector
  • RS stock no. 240-393
Subtotal (1 unit)
R 347,32(exc. VAT)
R 347,32/unit
Temporarily out of stock
RS PRO, MAXX Surge Suppressor Unit 253V Maximum Voltage Rating 6.5 kA Maximum Surge Current EMC Filter
  • RS stock no. 206-7926
Subtotal (1 unit)
R 5 435,66(exc. VAT)
R 5 435,66/unit
Temporarily out of stock
TDK, MT25 Metal Oxide Varistor 1.32 nF 20 kA, Clamping 1.4 kV, Varistor 430 V, Box
  • RS stock no. 202-0473
  • Mfr. Part No. B72225M0271M201
Subtotal (1 tray of 40 units)
R 5 606,97(exc. VAT)
R 5 606,97/tray
In Stock
Littelfuse, PGB1 Surge Suppressor Unit 24V dc Maximum Voltage Rating ESD Suppressor
  • RS stock no. 760-6759
  • Mfr. Part No. PGB1010603NR
Subtotal (1 pack of 5 units)
R 76,85(exc. VAT)
R 15,37/unit
In Stock
TDK, B722 Metal Oxide Varistor 215 pF 50 A, Clamping 2970 V, Varistor 910 V
  • RS stock no. 138-9257
  • Mfr. Part No. B72214S0551K101
Subtotal (1 bag of 5 units)
R 117,76(exc. VAT)
R 23,552/unit
In Stock
Eaton, SD32 Surge Protection Device 32V Maximum Voltage Rating 20 kA Maximum Surge Current Surge Protection Device
  • RS stock no. 144-8697
  • Mfr. Part No. SD32MXX-BCN
Subtotal (1 unit)
R 4 410,42(exc. VAT)
R 4 410,42/unit
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 3 051,09(exc. VAT)
R 3 051,09/unit
In Stock
RS PRO, MAXX Surge Suppressor Unit 253V Maximum Voltage Rating 6.5 kA Maximum Surge Current EMC Filter
  • RS stock no. 206-7910
Subtotal (1 unit)
R 4 258,85(exc. VAT)
R 4 258,85/unit
In Stock
Panasonic, V Surge Absorber 210 pF 25 A, Clamping 710 V, Varistor 430 V
  • RS stock no. 785-8758
  • Mfr. Part No. ERZE07A431
Subtotal (1 pack of 25 units)
R 104,75(exc. VAT)
R 4,19/unit
Temporarily out of stock
Dehn, DG Modular Surge Protector 600V Maximum Voltage Rating 15 kA Maximum Surge Current Type 2 Arrester
  • RS stock no. 847-0980
  • Mfr. Part No. DG M WE 600 FM
Subtotal (1 unit)
R 15 397,35(exc. VAT)
R 15 397,35/unit
In Stock
Littelfuse, LA Metal Oxide Varistor 1 nF 100 A, Clamping 2700 V, Varistor 390 V
  • RS stock no. 760-6939
  • Mfr. Part No. V250LA40BP
Subtotal (1 pack of 5 units)
R 53,54(exc. VAT)
R 10,708/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 162,19(exc. VAT)
R 16,219/unit
In Stock
Panasonic, E Surge Absorber 200 pF 50 A, Clamping 1815 V, Varistor 1100 V
  • RS stock no. 785-8884
  • Mfr. Part No. ERZE11A112
Subtotal (1 pack of 25 units)
R 205,425(exc. VAT)
R 8,217/unit
In Stock
Panasonic, V Surge Absorber 1.6 nF 1 A, Clamping 40 V, Varistor 18 V
  • RS stock no. 720-9724
  • Mfr. Part No. ERZV05D180
Subtotal (1 pack of 10 units)
R 60,77(exc. VAT)
R 6,077/unit
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 4 110,43(exc. VAT)
R 4 110,43/unit
In Stock
Littelfuse, LA Metal Oxide Varistor 1.6 nF 100 A, Clamping 2700 V, Varistor 268 V, Radial Leaded Ceramic Disc
  • RS stock no. 543-4969
  • Mfr. Part No. V150LA20AP
Subtotal (1 pack of 5 units)
R 89,42(exc. VAT)
R 17,884/unit
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