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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 Protector
    -
    35V (Volts)
    CLIXTRAB
    CLT
    -
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Siemens
    Surge Protector
    -
    400V ac
    SIRIUS
    -
    -
    Clip-On
    -
    11.5mm
    18.6mm
    30.2mm
    11.5 x 18.6 x 30.2mm
    -25°C
    +60°C
    Low carbon manufacture
    Yes
    -
    -25 → +60 °C
    Schneider Electric
    Surge Arrestor
    20kA
    -
    Acti 9
    iPRD
    -
    DIN Rail
    -
    94mm
    113.6mm
    75.9mm
    94 x 113.6 x 75.9mm
    -25°C
    +60°C
    -
    Yes
    Green Premium
    -25 → +60 °C
    Siemens
    Surge Protector
    -
    1.4kV
    SENTRON
    5SD
    -
    Clip-On
    5kA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Protector
    -
    250V ac
    -
    EMG 22-DIO 4E-1N5408
    -
    DIN Rail
    -
    75mm
    22.5mm
    55mm
    75 x 22.5 x 55mm
    -20°C
    +50°C
    -
    -
    -
    -20 → +50 °C
    Phoenix Contact
    Surge Protector
    40kA
    -
    Type 2 Surge Protective Devices
    -
    1
    On Base Element
    20kA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Endress+Hauser
    Surge Arrestor
    0.02A
    230V (Volts)
    HAW562
    -
    -
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lovato
    Surge Protector
    50kA
    -
    Monoblock
    SA0B
    Single
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Arrestor
    -
    -
    Type 2 Surge Arrester
    VAL-SEC
    3
    DIN Rail
    -
    -
    -
    -
    -
    -40°C
    +80°C
    -
    -
    -
    -40 → +80 °C
    Phoenix Contact
    Surge Protector
    5kA
    450V (Volts)
    -
    -
    3
    DIN Rail Mount
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Siemens
    Surge Arrestor
    75kA
    -
    -
    5SD
    3
    DIN Rail
    50kA
    94.8mm
    106.8mm
    71.1mm
    94.8 x 106.8 x 71.1mm
    -40°C
    +80°C
    -
    -
    -
    -40 → +80 °C
    Phoenix Contact
    Surge Arrestor
    40kA
    = 2.6kV
    VALVETRAB PV
    VAL-MS
    Single
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ABB
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Siemens
    Surge Protector
    -
    -
    -
    5SD
    1
    DIN Rail
    40kA
    -
    -
    -
    -
    -40°C
    -
    -
    -
    -
    -40 → +80 °C
    Schneider Electric
    Surge Arrestor
    50kA
    -
    Acti 9
    A9L4
    -
    DIN Rail
    15kA
    -
    -
    -
    -
    -
    -
    -
    Yes
    Green Premium
    -
    Siemens
    Surge Protector
    16A
    230V (Volts)
    5SY17
    5SY
    Single
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Protector
    -
    -
    Type 1 Surge Protection Plug
    FLT-SEC
    1
    DIN Rail
    50kA
    -
    -
    -
    -
    -40°C
    +80°C
    -
    -
    -
    -40 → +80 °C
    Bourns
    Surge Protector
    50kA
    1.5kV
    -
    1420A
    -
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Siemens
    Surge Arrestor
    25kA
    -
    -
    5SD
    1
    DIN Rail
    40kA
    -
    -
    -
    -
    -40°C
    +80°C
    -
    -
    -
    -40 → +80 °C
    Siemens
    -
    -
    -
    -
    5SD7
    -
    -
    15kA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
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