Key Switches, Key Operated Lock Switches | RS
Login / Register to access your benefits
Recently searched
    Enter a specific phrase or keyword to find the most relevant products. Try entering ‘Cable ties 300mm black’, ‘Tool bags under £30’ or ‘Screwdriver set’.

    Key Switches

    Key switches are electromechanical switches that can only be operated with the use of a key, which then is turned to different positions to break or complete the circuit. The different positions align with different states, such as 'ON' or 'OFF', giving a clear indicator of the state of the circuit. Key switches are typically used for operations and process that may require a higher level of safety or security clearance as they cannot be accidentally switched on or off without using the appropriate key. RS supply a range of key-operated switches from a variety of brands, including APEM, C&K, Lorlin, and our own RS PRO, as well as others. You can find more information in our key switches guide.

    What are key switches used for?

    Key switches are commonly found in industrial environments, such as factories and warehouses, but can be found anywhere that it is deemed an appropriate security level to use a key-operated switch. Typical applications may include:Fire alarm systemsData cabinets or serversFuses boxesProcessing or assembly linesLarge or heavy-duty machinery

    323 Products showing for Key Switches

    RS PRO
    -
    2
    Momentary
    SPDT
    5 A
    IP40
    Common
    Solder
    Stainless Steel
    Round
    -
    36.5mm
    90°
    -
    -
    -
    Silver
    RS PRO
    -
    2
    (On)-(On)
    DPDT
    5A
    IP40
    Flat
    Solder
    Stainless Steel
    Round
    -
    36.5mm
    -
    -
    -
    -
    Silver Plated
    RS PRO
    -
    3
    Latching
    DPDT
    5 A
    IP40
    Flat
    Solder
    Stainless Steel
    Round
    -
    36.5mm
    45°
    -
    -
    -
    Silver
    RS PRO
    -
    2
    (On)-(On)
    SPDT
    5A
    IP40
    Flat
    Solder
    Stainless Steel
    Round
    -
    36.5mm
    -
    -
    -
    -
    Silver Plated
    RS PRO
    -
    3
    Momentary
    1 CO
    -
    IP65
    -
    Screw
    -
    -
    -
    -
    -
    -
    -
    -
    -
    RS PRO
    -
    2
    Latching
    DPDT
    5 A
    IP40
    -
    Solder
    Stainless Steel
    Round
    -
    48.5mm
    90°
    -
    -
    -
    Silver
    RS PRO
    -
    2
    Latching
    SPDT
    5 A
    IP40
    -
    Solder
    Stainless Steel
    Round
    -
    37mm
    90°
    -
    -
    -
    Silver
    RS PRO
    -
    2
    Latching
    SPDT
    5 A
    IP40
    -
    Solder
    Stainless Steel
    Round
    -
    39.5mm
    90°
    -
    -
    -
    Silver
    RS PRO
    -
    2
    Latching
    -
    5 A @ 250 V ac
    IP65
    -
    Tab
    -
    Square
    -
    -
    90°
    -
    -
    -
    Silver
    RS PRO
    -
    2
    Momentary
    1 CO
    -
    IP65
    -
    Screw
    -
    -
    -
    -
    -
    -
    -
    -
    -
    RS PRO
    -
    2
    Momentary
    SPDT
    5 A
    IP40
    -
    Solder
    Stainless Steel
    Round
    -
    37mm
    90°
    -
    -
    -
    Silver
    RS PRO
    -
    2
    Momentary
    DPDT
    5 A
    IP40
    -
    Solder
    Stainless Steel
    Round
    -
    37mm
    90°
    -
    -
    -
    Silver
    RS PRO
    -
    3
    Latching
    SPDT
    5 A
    IP40
    -
    Solder
    Stainless Steel
    Round
    -
    36.5mm
    45°
    -
    -
    -
    Silver
    RS PRO
    -
    3
    Latching
    DPDT
    -
    IP65
    -
    PCB Pin
    -
    -
    -
    -
    -
    -
    -
    -
    -
    RS PRO
    -
    2
    Latching
    SPDT
    5 A
    IP40
    -
    Solder
    Stainless Steel
    Round
    -
    37mm
    90°
    -
    -
    -
    Silver
    RS PRO
    -
    2
    Latching
    DPDT
    5 A
    IP40
    -
    Solder
    Stainless Steel
    Round
    -
    52mm
    90°
    -
    -
    -
    Silver
    RS PRO
    -
    2
    -
    1 CO
    -
    IP65
    -
    Screw
    -
    -
    -
    -
    45°
    -
    -
    -
    -
    RS PRO
    -
    2
    Latching
    SPDT
    5 A
    IP40
    -
    Solder
    Stainless Steel
    Round
    -
    52mm
    90°
    -
    -
    -
    Silver
    RS PRO
    -
    2
    Momentary
    SPDT
    5 A
    IP40
    -
    Solder
    Stainless Steel
    Round
    -
    37mm
    90°
    -
    -
    -
    Silver
    RS PRO
    -
    3
    Momentary
    DPDT
    -
    IP65
    -
    PCB Pin
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Results per page