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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
    -
    1000V dc
    -
    -
    -
    Wall Mount
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Legrand
    Surge Arrestor
    40kA
    2.5kV
    -
    -
    Single
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lovato
    Surge Protector
    60kA
    -
    -
    SA0
    Single
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Arrestor
    50kA
    250V ac
    -
    VAL-MS-T1/T2 335/12.5/3+1-FM
    3
    DIN Rail
    12.5kA
    99mm
    71.2mm
    77.5mm
    99 x 71.2 x 77.5mm
    -40°C
    +80°C
    -
    -
    -
    -40 → +80 °C
    Phoenix Contact
    Surge Protector
    40kA
    -
    -
    VAL
    1
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Protector
    40kA
    1000V (Volts)
    -
    VAL
    3
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Legrand
    Surge Protector
    10kA
    1.2kV
    -
    -
    1+N
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Arrestor
    40kA
    -
    Type 2 Surge Arrester
    VAL-SEC
    1
    DIN Rail
    20kA
    97.9mm
    37.3mm
    74.5mm
    97.9 x 37.3 x 74.5mm
    -40°C
    +80°C
    -
    -
    -
    -40 → +80 °C
    Schneider Electric
    Surge Arrestor
    -
    1.5kV
    Acti9
    A9L
    -
    Clip-On
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Siemens
    Surge Protector
    50kA
    -
    -
    5SD
    3
    DIN Rail
    50kA
    -
    -
    -
    -
    -40°C
    +80°C
    -
    -
    -
    -40 → +80 °C
    Weidmüller
    Surge Arrestor
    1kA
    10kV
    -
    1070230000
    Three
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Schneider Electric
    -
    15kA
    -
    Acti 9
    IPF K
    -
    DIN Rail
    40kA
    -
    -
    -
    -
    -
    -
    -
    Yes
    Green Premium
    -
    Phoenix Contact
    Surge Arrestor
    40kA
    -
    Type 2 Surge Arrester
    VAL-SEC
    2
    DIN Rail
    20kA
    89.9mm
    37.3mm
    74.5mm
    89.9 x 37.3 x 74.5mm
    -40°C
    +80°C
    -
    -
    -
    -40 → +80 °C
    Siemens
    Surge Protector
    25kA
    -
    -
    5SD
    1
    DIN Rail
    40kA
    -
    -
    -
    -
    -40°C
    +80°C
    -
    -
    -
    -40 → +80 °C
    Schneider Electric
    Surge Arrestor
    -
    1.5kV
    Resi9
    R9P
    -
    Clip-On
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Protector
    -
    -
    Combination Type 1/2 Protective Device
    FLT
    3
    DIN Rail
    50kA
    -
    -
    -
    -
    -40°C
    +80°C
    -
    -
    -
    -40 → +80 °C
    Siemens
    -
    -
    -
    -
    5SD7
    -
    -
    50kA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Protector
    10kA
    -
    Surge Protection Device
    TTC
    -
    DIN Rail
    0.5kA
    105.8mm
    6.2mm
    69.5mm
    105.8 x 6.2 x 69.5mm
    -40°C
    +80°C
    -
    -
    -
    -40 → +80 °C
    Phoenix Contact
    Surge Protector
    -
    -
    Type 2 Surge Protection Plug
    VAL-SEC-T2
    -
    DIN Rail
    -
    -
    -
    -
    -
    -40°C
    +80°C
    -
    -
    -
    -40 → +80 °C
    Phoenix Contact
    Surge Protector
    16A
    360V ac
    -
    -
    3
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
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