Key Switches, Key Operated Lock Switches | RS
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    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

    322 Products showing for Key Switches

    Eaton
    -
    2
    Spring Return
    -
    -
    IP66
    MS3
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Siemens
    -
    2
    Latching
    -
    -
    IP66, IP67, IP69(IP69K)
    Flat
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    EAO
    -
    2
    Latching
    -
    5 A
    IP65
    Standard
    Plug In, Solder
    -
    Square
    -
    49mm
    90°
    -
    -
    -
    Silver
    APEM
    -
    3
    Latching
    DP3T
    4 A
    -
    Common
    Solder
    Glass Filled Polyester
    Round
    Automatic Door Control, Automation Control, Communication Systems, Fire Alarm Panels, Power Distribution, Transportation
    22.29mm
    45°
    -
    -
    -
    Copper Alloy
    Siemens
    -
    2
    Latching
    SPST
    -
    -
    -
    Screw
    -
    -
    -
    -
    90°
    Extended product life, Low carbon manufacture
    Yes
    -
    -
    Schneider Electric
    -
    2
    -
    SPDT
    -
    IP40
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    C & K
    -
    2
    Latching
    SPST
    4 A
    -
    Flat
    Quick Connect
    Nylon
    Round
    Cable TV Connectors, Automotive Accessories, Computers
    27.07mm
    90°
    -
    -
    -
    Silver
    Omron
    -
    2
    Latching
    DPDT
    5 A @ 125 V ac
    IP65
    Flat
    Solder
    -
    Rectangular
    -
    -
    90°
    -
    -
    -
    -
    Lorlin
    Key Trapping
    2
    Latching
    SPDT
    1 A @ 115 V ac
    IP66, IP67
    Random
    Solder
    Nylon 66
    Round
    Marine
    22.4mm
    90°
    -
    -
    -
    Brass CZ108
    EAO
    -
    3
    -
    -
    -
    IP65
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    C & K
    -
    2
    -
    SPST
    4 A
    -
    Flat
    Solder
    Glass Filled Polyester
    Round
    Point of Sale Terminal, Cash Register, Computer
    23.14mm
    90°
    -
    -
    -
    Silver
    Lorlin
    -
    2
    -
    DPDT
    4 A @ 250 V ac
    -
    Flat
    Solder
    Zinc Alloy
    Round
    -
    -
    90°
    -
    -
    -
    Silver Cadmium Oxide
    Lorlin
    -
    4
    -
    SPST
    150 mA @ 250 V ac
    IP67
    -
    Solder
    Chrome Plated Zinc Alloy
    Round
    -
    48.7mm
    90°
    -
    -
    -
    Silver Plated Brass
    C & K
    -
    2
    -
    SPST
    4 A
    -
    Flat
    Solder
    Glass Filled Polyester
    Round
    Point of Sale Terminal, Cash Register, Computer
    23.14mm
    45°
    -
    -
    -
    Silver
    Lorlin
    -
    2
    Off-On
    DPST
    50 mA @ 250 V ac
    -
    Flat
    Solder
    -
    Round
    -
    -
    90°
    -
    -
    -
    Silver Plated Brass
    C & K
    -
    2
    Latching
    DPST
    4 A
    -
    Flat
    Solder
    Glass Filled Polyester
    Round
    Point of Sale Terminal, Cash Register, Computer
    23.14mm
    90°
    -
    -
    -
    Gold Plated Silver
    Lorlin
    -
    2
    -
    DPDT
    4 A @ 250 V ac
    -
    Flat
    Solder
    Zinc Alloy
    Round
    -
    -
    90°
    -
    -
    -
    Silver Cadmium Oxide
    Omron
    -
    2
    Latching
    DPDT
    -
    IP65
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    EAO
    -
    3
    Latching
    -
    -
    IP65
    -
    -
    -
    -
    -
    -
    42°
    -
    -
    -
    -
    APEM
    -
    2
    Latching
    SPDT
    4 A
    -
    Common
    Solder
    Glass Filled Polyester
    Round
    Automatic Door Control, Automation Control, Communication Systems, Fire Alarm Panels, Power Distribution, Transportation
    22.29mm
    90°
    -
    -
    -
    Copper Alloy
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