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

4390 Products showing for Surge Protection Components

1 of 220
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)
PHP4,303.12(exc. VAT)
PHP4,303.12/unit
Temporarily out of stock
Dehn, Rod Surge Protection Device Air Termination Rod
  • RS Stock No. 786-9367
  • Mfr. Part No. PV angled rod
Subtotal (1 unit)
PHP1,032.68(exc. VAT)
PHP1,032.68/unit
Temporarily out of stock
Vishay PTC Thermistor, PTC Type 10 Ω 18 mm 5.5 mm
  • RS Stock No. 782-883
  • Mfr. Part No. PTCTL7MR100SBE
Subtotal (1 unit)
PHP91.28(exc. VAT)
PHP91.28/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)
PHP7,464.82(exc. VAT)
PHP7,464.82/unit
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)
PHP38,255.78(exc. VAT)
PHP38,255.78/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)
PHP15,312.10(exc. VAT)
PHP15,312.10/unit
In Stock
Dehn, DG Modular Surge Protector 1000V Maximum Voltage Rating 25 kA Maximum Surge Current Type 2 Arrester
  • RS Stock No. 847-0974
  • Mfr. Part No. DG M YPV SCI 1000 FM
Subtotal (1 unit)
PHP38,654.65(exc. VAT)
PHP38,654.65/unit
Currently unavailable
TDK, Standard Metal Oxide Varistor 260 pF 10 A, Clamping 250 V, Varistor 150 V
  • RS Stock No. 204-1867
  • Mfr. Part No. B72207S0950K101
Subtotal (1 pack of 5 units)
PHP75.40(exc. VAT)
PHP15.08/unit
In Stock
TDK, B72220 Varistor 630 pF 100 A, Clamping 2970 V, Varistor 430 V
  • RS Stock No. 204-2208
  • Mfr. Part No. B72220S0271K101
Subtotal (1 pack of 5 units)
PHP211.56(exc. VAT)
PHP42.312/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)
PHP6,939.85(exc. VAT)
PHP6,939.85/unit
In Stock
Murrelektronik Limited, 23115 Surge Suppressor Unit 400V Maximum Voltage Rating Surge Suppressor
  • RS Stock No. 284-6519
  • Mfr. Part No. 23115
Subtotal (1 unit)
PHP2,125.90(exc. VAT)
PHP2,125.90/unit
In Stock
Vishay PTC Thermistor, PTC Type 1500 Ω 17 mm 20 mm 0.8 mm
  • RS Stock No. 652-922
  • Mfr. Part No. PTCEL67R750LTE
Subtotal (1 unit)
PHP104.39(exc. VAT)
PHP104.39/unit
Temporarily out of stock
Mersen, STPT2 Surge Protector 530V Maximum Voltage Rating 40 kA Maximum Surge Current Type 2 Arrester
  • RS Stock No. 179-3076
  • Mfr. Part No. 44020007 / K2-1000
Subtotal (1 unit)
PHP3,913.46(exc. VAT)
PHP3,913.46/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)
PHP624.80(exc. VAT)
PHP62.48/unit
Last RS stock
Panasonic, V Surge Absorber 450 pF 50 A, Varistor 430 V
  • RS Stock No. 720-9976
  • Mfr. Part No. ERZV14D431
Subtotal (1 pack of 5 units)
PHP142.10(exc. VAT)
PHP28.42/unit
In Stock
TDK, Standard Metal Oxide Varistor 780 pF 100 A, Clamping 2970 V, Varistor 470 V
  • RS Stock No. 289-7317
  • Mfr. Part No. B72220S0301K101
Subtotal (1 pack of 5 units)
PHP371.83(exc. VAT)
PHP74.366/unit
In Stock
BC Components Thermistor, Positive Temperature Coefficient Type 48 Ω 20 mm 5.5 mm
  • RS Stock No. 538-0834
  • Mfr. Part No. PTCCL07H111HBE
Subtotal (1 pack of 5 units)
PHP306.45(exc. VAT)
PHP61.29/unit
In Stock
Vishay, VDRS Varistor 270 pF 50 A, Clamping 376 V, Varistor 430 V, Disc
  • RS Stock No. 229-056P
  • Mfr. Part No. VDRS10P275BSE
Subtotal 5 units (supplied in a bag)
PHP146.02(exc. VAT)
PHP29.204/unit
In Stock
Vishay NTC Thermistor, NTC Type 10 kΩ, Lug Sensor 15.7 mm 7.2 mm
  • RS Stock No. 179-3750
  • Mfr. Part No. NTCALUG01A103F
Subtotal (1 pack of 200 units)
PHP22,134.00(exc. VAT)
PHP110.67/unit
In Stock
Vishay PTC Thermistor, PTC Type 8.4 Ω 5.5 mm 12.5 mm
  • RS Stock No. 179-3936P
  • Mfr. Part No. PTCCL13H321HBE
Subtotal 20 units (supplied in a box)
PHP1,451.80(exc. VAT)
PHP72.59/unit
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