Auxiliary Contacts | Auxiliary Contact Block | RS
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    Auxiliary Contacts

    Auxiliary contacts, also known as auxiliary contactors are electromechanical devices used in conjunction with primary switching equipment such as contactors, circuit breakers, switches, and relays. These secondary switching devices are physically connected to the main switching equipment and work at the same time. The add-on accessories are available in a range of contact configurations and mounting styles to suit a wide range of industrial control applications.RS offer an extensive range of high-quality auxiliary contact blocks from industry-leading brands including Schneider Electric, Siemens, ABB, Lovato, Eaton, and of course RS Pro.

    How do auxiliary contacts work?

    Auxiliary contacts are affixed to the main contacts and change state when the main contacts do. They pass the data from the circuit to a logic controller, which in turn gives instructions to the linked devices about whether to turn on or off. Alternatively, they can be used as a standalone hardware control unit. Auxiliary contacts are available in a variety of mounting styles such as a front mount or DIN rail mount and a range of terminal types including screw terminals, screw clamp terminals, and cage clamp terminals making it easy to find the right contact for the application.

    What are auxiliary contacts used for?

    One common usage of auxiliary contacts is in push-button controllers, where they can be built into the start button. They are a common component in relay logic circuits solid-state electronics, electric motors, motor control schemes, and other industrial control applications.

    What are the different types of contact blocks?

    There are two types of contact, contacts that are closed in a non-activated state and those that are open. They will be described as N/C (normally closed) and N/O (normally open).NC contacts are used as interlocks. NO contacts are used for switching on other components such as status indication lamps.

    1065 Products showing for Auxiliary Contacts

    RS PRO
    1
    1NO
    DIN Rail Mount
    -
    -
    -
    HRS
    -
    Screw
    -25°C
    +60°C
    -
    -25 → +60 °C
    -
    RS PRO
    -
    1NO + 1NC
    Screw Mount
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    RS PRO
    -
    -
    DIN Rail Mount
    -
    -
    -
    AR
    -
    Screw
    -25°C
    +60°C
    -
    -25 → +60 °C
    -
    RS PRO
    -
    1NO + 1NC
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    RS PRO
    4
    3NC/1NO
    Top Mounted
    16 A
    RSPRO-AC13
    500 V
    -
    -
    -
    -
    -
    -
    -
    -
    RS PRO
    -
    -
    DIN Rail Mount
    -
    -
    -
    UR
    -
    Screw
    -25°C
    +60°C
    -
    -25 → +60 °C
    -
    RS PRO
    -
    -
    DIN Rail Mount
    -
    -
    -
    MSK
    -
    Screw
    -25°C
    +60°C
    -
    -25 → +60 °C
    -
    RS PRO
    -
    1NO + 1NC
    Screw Mount
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    RS PRO
    4
    3NO/1NC
    Top Mounted
    4 A ac, 10 A dc
    RSPRO-AC31
    220 V dc, 500 V ac
    -
    4PST
    Screw
    -25°C
    +60°C
    -
    -25 → +60 °C
    -
    RS PRO
    4
    2NC + 2NO
    Front Mount
    10 A dc, 4 A ac
    RSPRO-ACR22
    220 V dc, 500 V ac
    -
    4P
    Screw
    -25°C
    +60°C
    -
    -25 → +60 °C
    -
    RS PRO
    -
    2NO + 2NC
    Snap-On
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    RS PRO
    4
    2NO/2NC
    Top Mounted
    4 A ac, 10 A dc
    RSPRO-AC22
    220 V dc, 500 V ac
    -
    4PST
    Screw
    -25°C
    +60°C
    -
    -25 → +60 °C
    -
    RS PRO
    1
    1NC
    DIN Rail Mount
    -
    -
    -
    HRS
    -
    Screw
    -25°C
    +60°C
    -
    -25 → +60 °C
    -
    RS PRO
    1
    1NC
    DIN Rail Mount
    -
    -
    -
    HSV
    -
    Screw
    -25°C
    +60°C
    -
    -25 → +60 °C
    -
    ABB
    2
    1NC + 1NO
    Side Mount
    2 A dc, 6 A ac
    -
    220 V dc, 400 V ac
    HK1
    DP
    Screw
    -25°C
    +60°C
    -
    -25 → +60 °C
    -
    Siemens
    2
    1NC + 1NO
    Plug In
    2 A dc, 10 A ac
    SIRIUS
    250 V dc, 690 V ac
    3RV2
    DP
    Screw
    -20°C
    +60°C
    -
    -20 → +60 °C
    -
    RS PRO
    -
    1NO + 1NC
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Schneider Electric
    1
    -
    Side Mount
    10 A
    -
    690 V ac
    VZ02
    SP
    Screw
    -20°C
    +50°C
    Yes
    -20 → +50 °C
    Green Premium
    Schneider Electric
    4
    2 NO + 2 NC
    Front Mount
    -
    EasyPact
    -
    LAEN
    4P
    Screw
    -5°C
    +55°C
    -
    -5 → 55 °C
    -
    RS PRO
    -
    1NO + 1NC
    Snap-On
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Resultater per side