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    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

    4251 Products showing for Surge Protection Components

    1 / 213
    Phoenix Contact, D-LAN-CAT.5E Surge Protection Device 7 V dc Maximum Voltage Rating 2.5kA Maximum Surge Current
    • RS Stock No. 504-3579
    • Mfr. Part No. 2858991
    Each
    MYR924.18
    WJ Furse, ESP E Surge Suppressor Unit 16.7 V Maximum Voltage Rating 5kA Maximum Surge Current Twisted Pair Surge
    • RS Stock No. 456-8162
    • Mfr. Part No. 7TCA085400R0095 ESP 15E
    Each
    MYR897.24
    Phoenix Contact, PLT-SEC-T3-230-FM-PT Surge Protection Device 240 V ac/dc Maximum Voltage Rating 0.026kA Maximum Surge
    • RS Stock No. 188-8256
    • Mfr. Part No. 2907928
    Each
    MYR785.43
    EPCOS Thermistor, 3Ω Resistance, NTC Type, 16 x 7 x 23mm
    • RS Stock No. 185-7631
    • Mfr. Part No. B57238S0309M000
    Each (In a Box of 500)
    MYR4.104
    WJ Furse, ESP M1 Surge Suppressor Unit 280 V Maximum Voltage Rating 6.25kA Maximum Surge Current Mains Surge Protector
    • RS Stock No. 788-6750
    • Mfr. Part No. 7TCA085460R0112 ESP 415M1
    Each
    MYR5,438.23
    Dehn, DV Modular Surge Protector 255 V ac Maximum Voltage Rating 100kA Maximum Surge Current Lightning Arrester
    • RS Stock No. 768-1729
    • Mfr. Part No. DV M TT 255 FM
    Each
    MYR12,757.11
    Phoenix Contact Lifecheck Surge Tester 230 VAC Maximum Voltage Rating
    • RS Stock No. 136-002
    • Mfr. Part No. 2905256
    Each
    MYR37,921.94
    SEMITEC Thermistor
    • RS Stock No. 227-2057
    • Mfr. Part No. EC2F103A2-40113
    1 Bag of 200
    MYR2,368.46
    Dehn, DCO Surge Protector 23 V ac, 33 V dc Maximum Voltage Rating 20kA Maximum Surge Current Type 2 Arrester
    • RS Stock No. 786-9389
    • Mfr. Part No. DCO SD2 ME 24
    Each
    MYR676.01
    EPCOS, HighE Varistor 1.6nF 300A, Clamping 1240V, Varistor 750V
    • RS Stock No. 291-3526
    • Mfr. Part No. B72240B0461K001
    Each
    MYR174.15
    WJ Furse, D1 Lightning / Surge Arrester 280 V Maximum Voltage Rating 6.25kA Maximum Surge Current Mains Surge Protector
    • RS Stock No. 788-6753
    • Mfr. Part No. 7TCA085460R0105 ESP 415D1
    Each
    MYR4,733.81
    Bourns, MOV-14D Metal Oxide Varistor 460pF 50A, Clamping 710V, Varistor 430V
    • RS Stock No. 851-8322
    • Mfr. Part No. MOV-14D431K
    Each
    MYR2.13
    Weidmuller Surge Protector
    • RS Stock No. 902-8082
    • Mfr. Part No. 8953670000
    Each
    MYR462.29
    EPCOS, HighE Varistor 1.8nF 300A, Clamping 1120V, Varistor 680V
    • RS Stock No. 267-8273
    • Mfr. Part No. B72240B0421K001
    Each
    MYR174.15
    Phoenix Contact, PT Surge Protection Plug 30 V dc Maximum Voltage Rating 500mA Maximum Surge Current Surge Suppressor
    • RS Stock No. 287-7862
    • Mfr. Part No. 2839253
    Each (In a Pack of 10)
    MYR1,115.93
    Bourns, 2036 90V 20kA, SMD 3 Electrode Gas Discharge Tube
    • RS Stock No. 690-9984P
    • Mfr. Part No. 2036-09-SM-RPLF
    Each (Supplied on a Reel)
    MYR7.448
    Bourns, 2036 90V 20kA, SMD 3 Electrode Gas Discharge Tube
    • RS Stock No. 690-9984
    • Mfr. Part No. 2036-09-SM-RPLF
    Each (In a Pack of 5)
    MYR7.448
    ABB, OVR Surge Protection Device 275 V Maximum Voltage Rating 80kA Maximum Surge Current Surge Protection Device
    • RS Stock No. 175-2597
    • Mfr. Part No. 2CTB815708R0800 OVR T2 3N 80-275s P TS QS
    Each
    MYR2,754.75
    Dehn, DR Modular Surge Protector 255 V ac/dc Maximum Voltage Rating 5kA Maximum Surge Current Surge Arrester
    • RS Stock No. 768-1782
    • Mfr. Part No. DR M 2P 255 FM
    Each
    MYR702.84
    Phoenix Contact, VAL-MS 230/1+1 Surge Suppressor Unit 275 V ac Maximum Voltage Rating 40kA Maximum Surge Current Surge
    • RS Stock No. 190-2098
    • Mfr. Part No. 2804429
    Each
    MYR1,175.54
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