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 Protector
    2A
    230V (Volts)
    5SY17
    5SY
    Single
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Protector
    -
    -
    Surge Protection Device
    TTC
    -
    DIN Rail
    0.5kA
    -
    -
    -
    -
    -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
    Siemens
    Surge Protector
    -
    24 → 48 V ac, 24 → 70V dc
    SIRIUS
    -
    -
    Clip-On
    -
    29.5mm
    30mm
    14.4mm
    29.5 x 30 x 14.4mm
    -25°C
    +60°C
    Low carbon manufacture
    Yes
    -
    -25 → +60 °C
    Okaya Electric Industries
    Surge Protector
    5kA
    -
    -
    LV
    1
    Surface Mount
    500A
    43mm
    36.5mm
    24.5mm
    43 x 36.5 x 24.5mm
    -
    -
    -
    -
    -
    -
    Eaton
    Surge Protector
    40kA
    2.2kV
    -
    xPole - SPCT2
    Three
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Siemens
    Surge Protector
    -
    -
    SIRIUS
    -
    -
    Through Hole
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Protector
    10kA
    -
    TERMITRAB
    TTC
    1
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    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
    Phoenix Contact
    Surge Protector
    100kA
    -
    Type 1+2 Protective Device Combination
    FLT-SEC
    2
    DIN Rail
    25kA
    -
    -
    -
    -
    -40°C
    +80°C
    -
    -
    -
    -40 → +80 °C
    Schneider Electric
    Surge Arrestor
    40kA
    800V ac
    Acti 9
    A9L4
    -
    DIN Rail
    15kA
    -
    54mm
    69mm
    54 x 85 x 69mm
    -25°C
    '+60°C
    -
    Yes
    Green Premium
    -25 → +60 °C
    Mersen
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Schneider Electric
    Surge Arrestor
    40kA
    350V ac
    Acti9
    A9L
    -
    Clip-On
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Weidmüller
    Surge Protector
    50kA
    1000V dc
    PV Protect
    VPUM2I2SXFXV2O0TXPX10
    -
    Screw Mount
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Arrestor
    40kA
    = 1.5kV
    VALVETRAB
    VAL-MS
    Single
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Arrestor
    40kA
    -
    Type 2 Surge Protective Devices
    -
    3
    DIN Rail
    20kA
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Protector
    -
    -
    -
    SOL-SC-1ST-0-DC-1MPPT-1000
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Protector
    -
    -
    Surge Protection Device
    C-SAT-BOX
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    nVent ERICO
    Surge Protector
    -
    -
    ERICO
    LANRJ4
    -
    DIN Rail
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    Surge Protector
    -
    -
    Surge Protection Device
    TTC
    -
    DIN Rail
    0.5kA
    -
    -
    -
    -
    -40°C
    +80°C
    -
    -
    -
    -40 → +80 °C
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