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    Contactors

    In simple terms, a contactor, contactor switch or contactor relay is a device designed for switching an electrical circuit on or off. They are part of the relay family, but the main difference is that a contactor is used in applications with higher current capacity is involved. Contactors are typically used for motors, lighting circuits, heating, and other electrical loads. A contactor can function on its own or as a power control device or as part of a motor starter.

    RS offer a comprehensive range of high-quality electrical contactors from industry-leading brands including Schneider Electric, Siemens, Eaton, ABB, and Allen Bradley. We also stock a selection of accessories used to enhance the function of the contactor including, Contactor Overload Relays, auxiliary contacts, mechanical interlocks, and much more.

    What are electrical contactors?

    Designed to be connected to high-current load devices, contactors incorporate spring-loaded contacts that make or break power supply lines to a load. These contacts are designed to open and close very rapidly to assist with arc suppression, ensuring the contactor's ability to interrupt heavy motor currents with minimal damage over a longer life cycle. In any device that is frequently turned off and on, a contactor is often employed, and different contactor configurations are designed for different current requirements. From uses in basic light switches to complex applications such as controlling electromagnets, contactors are highly versatile.

    How do contactors work?

    Contactors, unlike standard relays, are specifically designed to connect to high current load devices. Used in larger-scale control circuit applications, a contactor is a switch that can be controlled remotely, specifically designed to switch a large amount of electrical power through its contacts. If a device can switch more than 10 amperes, it is called a contactor. These devices also feature high coil voltages which are rare within relays.

    Contactor Specifications

    There are various types of contactors, and each type will have its own set of specifications depending on your application. Some key specifications are

    • AC Contactor or DC Contactor with coils including 12 V, 24 V, 48 V, 110 V, 240 V, 400 V, and 440 V.
    • Reversing or non-reversing functionality.
    • AC3 and AC1 categories
    • Contactors with 2 poles, 3 poles 4 poles, and even 8 and 10 pole variants.
    • Various contact configurations.
    • IEC standards

    10291 Produits présentés pour Contactors

    Siemens
    -
    -
    3
    -
    Size S3, 3RT2
    -
    45 kW
    SIRIUS 3RT
    Reversing
    1NO + 1NC
    -
    -
    -
    -
    -
    -
    -
    Low carbon manufacture
    Yes
    -
    -
    Omron
    48 → 12 V ac/dc
    -
    -
    -
    J7KN
    -
    -
    J7KN
    Surge Suppression
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Schneider Electric
    110 V ac
    20 A
    4
    690 V ac
    LC2K
    -
    -
    TeSys K
    -
    -
    -
    -
    Cable
    58mm
    -
    90mm
    57mm
    -
    Yes
    Green Premium
    -
    Schneider Electric
    230 V
    80 A
    4
    -
    -
    -
    -
    TeSys D
    -
    2NO + 2NC
    -
    -
    -
    -
    -
    -
    -
    -
    Yes
    Green Premium
    -
    Finder
    240 V ac
    25 A
    2
    -
    22 Series
    -
    -
    -
    -
    -
    -
    -
    Screw
    17.5mm
    DIN Rail
    -
    60.8mm
    -
    -
    -
    -
    Eaton
    230 V
    -
    3
    -
    DILM
    -
    4.5 kW
    -
    Reversing
    1NC
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ABB
    230 V ac
    16 A
    2
    -
    ESB
    -
    3.7 kW
    ESB16-11N-06
    Safety
    1NO + 1NC
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lovato
    24 V ac/dc
    160 A
    4
    690 V
    BF150
    -
    187 kW
    BF
    -
    4 NO
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Hager
    230 V ac
    40 A
    4
    400 V ac
    ESC
    -
    -
    System M Pro
    -
    4NC
    -
    -
    Screw
    -
    DIN Rail Mount
    -
    -
    -
    -
    -
    -
    Siemens
    24 V dc
    9 A
    3
    -
    Size S00, 3RT2
    -
    4 kW
    SIRIUS 3RT
    Reversing
    1NC
    -
    -
    -
    -
    -
    -
    -
    Low carbon manufacture
    Yes
    -
    -
    Siemens
    230 V ac
    20 A
    2
    230 V ac
    5TT INSTA
    DPST
    -
    SENTRON
    -
    2NO
    -
    -
    Screw
    17.5mm
    DIN Rail Mount
    90mm
    70.7mm
    -
    -
    -
    -
    Schneider Electric
    24 V dc
    20 A
    3
    690 V ac
    LC1K
    -
    4 kW
    TeSys
    -
    3NO
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Schneider Electric
    24 V dc
    12 A
    3
    -
    -
    -
    7.5 kW
    TeSys D
    Reversing
    1NC + 1NO
    -
    -
    -
    -
    -
    -
    -
    -
    Yes
    Green Premium
    -
    Lovato
    240 V ac
    800 A
    3
    -
    V
    -
    860 kW
    BF
    Motor Control
    3NO
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Eaton
    24 V dc
    65 A
    3
    400 V ac
    -
    3P
    30 kW
    xStart
    Reversing
    3NO
    -
    0
    Screw
    115mm
    Tabletop
    77mm
    147mm
    -
    -
    -
    -
    Schneider Electric
    -
    115 A
    3
    -
    LC1D
    -
    -
    TeSys D
    Changeover Contactor
    1 NO + 1 NC
    -
    -
    -
    -
    -
    -
    -
    -
    Yes
    Green Premium
    -
    Schneider Electric
    230 V ac
    40 A
    3
    690 V ac
    LC1D
    3P
    18.5 kW
    TeSys D
    -
    3NO
    1NO + 1NC
    2
    Everlink
    122mm
    Plate, Rail Mounting
    55mm
    120mm
    -
    Yes
    Green Premium
    -
    Schneider Electric
    230 V ac
    9 A
    3
    690 V ac
    LC1D
    3PST
    4 kW
    TeSys D
    -
    3NO
    -
    2
    Screw
    45mm
    DIN Rail Mount
    86mm
    77mm
    -
    Yes
    Green Premium
    -
    Omron
    24 V dc
    12 A
    3
    -
    -
    -
    5.5 kW
    -
    -
    3NO
    1NC
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Schneider Electric
    -
    10 A
    -
    690 V ac
    CA2KN
    -
    -
    TeSys K
    -
    4NO
    -
    -
    Screw
    58mm
    DIN Rail Mount
    45mm
    57mm
    -
    Yes
    Green Premium
    -
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