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    Surge Protection Devices

    Surge protection devices help to protect devices and equipment against changes in the electrical current running through the system. Current spikes or transients can cause significant damage to equipment and is also a safety hazard. You can learn more in our complete guide to industrial surge protection.

    What are surge protection devices used for?

    Surge protection devices involve the use of surge suppressors or protectors and surge arresters.

    Suppressors protect equipment from voltage spikes. They block or short to ground the current in, for instance, power distribution panels, process control systems and heavy industrial systems.

    Arresters protect machinery from external occurrences that cause over-voltage transients like lightning strikes or switching events. These are installed in power transmission and distribution systems.

    Types of surge protection devices

    Four primary types of industrial surge protection exist:

    • Secondary surge arresters fixed to the line side of the service panel to protect against current surges from lightning or switching events.
    • Branch surge panels are fixed to the load side of the main service entrance and offer protection against motor driven and internally generated surges.
    • Power strips protect sensitive electronics with lower voltage and ampere capabilities by blocking current spikes.
    • Surge protection modules provide point-of-use protection by protecting against overvoltage and current spikes.

    782 Products showing for Surge Protection Devices

    Phoenix Contact
    Surge Arrestor
    40kA
    -
    Type 2 Surge Protective Devices
    -
    3
    DIN Rail
    20kA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ABB
    Surge Protector
    -
    -
    -
    BAH21
    -
    DIN Rail
    -
    7.1mm
    12mm
    30mm
    7.1 x 12 x 30mm
    -55°C
    +110°C
    -
    -
    -
    -55 → +110 °C
    Phoenix Contact
    Surge Protector
    20kA
    -
    Surge Protection Device
    TTC
    -
    DIN Rail
    0.5kA
    -
    -
    -
    -
    -40°C
    +80°C
    -
    -
    -
    -40 → +80 °C
    Phoenix Contact
    Surge Arrestor
    50kA
    -
    Combination Type
    -
    3
    DIN Rail
    50kA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Siemens
    Surge Arrestor
    100kA
    -
    -
    5SD
    3
    DIN Rail
    100kA
    95mm
    142.4mm
    71.5mm
    95 x 142.4 x 71.5mm
    -40°C
    +80°C
    -
    -
    -
    -40 → +80 °C
    Phoenix Contact
    Surge Protector
    -
    1000V dc
    -
    -
    -
    Wall Mount
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Siemens
    Surge Protector
    25kA
    -
    -
    5SD
    3
    DIN Rail
    25kA
    -
    -
    -
    -
    -40°C
    +80°C
    -
    -
    -
    -40 → +80 °C
    Phoenix Contact
    Surge Arrestor
    50kA
    -
    Type 2 Surge Arrester
    VAL-SEC
    2
    DIN Rail
    25kA
    89.9mm
    25.4mm
    74.5mm
    89.9 x 25.4 x 74.5mm
    -40°C
    +80°C
    -
    -
    -
    -40 → +80 °C
    Phoenix Contact
    Surge Arrestor
    40kA
    -
    Type 2 Surge Protective Devices
    -
    2
    DIN Rail
    20kA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Eaton
    Surge Protector
    40kA
    1.4kV
    -
    xPole - SPCT2
    Three
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Siemens
    -
    -
    -
    -
    5SD7
    -
    -
    15kA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Contactum
    Surge Arrestor
    40kA
    -
    Surge Arrestor kit
    -
    3
    DIN Rail
    63A
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Protector
    -
    2kV
    -
    FLT-SEC-P-T1-3S-350/25-FM
    3
    DIN Rail
    100kA
    95.2mm
    142.4mm
    74.5mm
    95.2 x 142.4 x 74.5mm
    -40°C
    +80°C
    -
    -
    -
    -40 → +80 °C
    nVent ERICO
    Surge Protector
    50kA
    1500V ac
    ERICO
    DT
    -
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Protector
    10kA
    -
    -
    PT-IQ-1X2-TELE-PT
    -
    DIN Rail
    2.5kA
    109.3mm
    17.7mm
    77.5mm
    109.3 x 17.7 x 77.5mm
    -40°C
    +70°C
    -
    -
    -
    -40 → +70 °C
    Eaton
    Surge Protector
    40kA
    1.4kV
    -
    xPole - SPCT2
    Single
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Siemens
    Surge Protector
    -
    -
    SENTRON
    5SD
    -
    Clip-On
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Eaton
    Surge Protector
    15kA
    277V ac
    MTL LS15K-KP30
    LS
    1
    Flange Mount
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Protector
    40kA
    -
    Type 2 Surge Protection Plug
    VAL-SEC-T2
    -
    DIN Rail
    20kA
    46.4mm
    11.7mm
    59.4mm
    46.4 x 11.7 x 59.4mm
    -40°C
    +80°C
    -
    -
    -
    -40 → +80 °C
    ABB
    Surge Arrestor
    20kA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
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