Surge Protection Devices | Surge Protectors | RS
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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

    Siemens
    Surge Arrestor
    100kA
    800V (Volts)
    5SD74
    5SD7411
    1
    Screw Mount
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ABB
    Surge Protector
    -
    -
    -
    HD185/36.F12.31.1
    -
    DIN Rail
    -
    36mm
    46mm
    50mm
    36 x 46 x 50mm
    -55°C
    +110°C
    -
    -
    -
    -55 → +110 °C
    Phoenix Contact
    Surge Arrestor
    80A
    335V ac
    -
    VAL-MS-T1/T2 335/12.5/4+0-FM
    Three
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Protector
    40kA
    2500V (Volts)
    -
    VAL
    1
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Protector
    80kA
    1500V (Volts)
    -
    VAL
    1
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lovato
    Surge Protector
    30kA
    -
    SG
    SGX
    Single
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Protector
    30kA
    2000V (Volts)
    -
    VAL
    1
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Siemens
    Surge Protector
    -
    -
    SIRIUS
    -
    -
    Through Hole
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Socomec
    -
    20kA
    -
    SURGYS
    4987
    3
    -
    5kA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Protector
    -
    -
    Surge Protection Device
    TTC
    -
    DIN Rail
    0.5kA
    -
    -
    -
    -
    -40°C
    +80°C
    -
    -
    -
    -40 → +80 °C
    Bourns
    Surge Protector
    50kA
    0.7kV
    -
    1250A
    Single, Three
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Arrestor
    80A
    4kV
    -
    FLT 35 CTRL-4.0
    -
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Protector
    -
    -
    -
    PT
    -
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Weidmüller
    Surge Protector
    20kA
    1000V dc
    PV Protect
    VPUM2I2SXFXV1O1TXPX10
    -
    Screw Mount
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Arrestor
    -
    -
    -
    VAL
    1
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Protector
    -
    95V (Volts)
    CLIXTRAB
    CLT
    -
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Protector
    -
    -
    -
    BT
    -
    Screw Mount
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Protector
    -
    500V (Volts)
    -
    SFP
    1
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Protector
    -
    -
    -
    S-PT
    -
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Siemens
    Surge Protector
    -
    24 → 48V dc
    SIRIUS
    3RT1956
    -
    Clip-On
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
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