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

    C & K
    -
    3
    Latching
    SPST
    12 A@ 125 V ac, 6 A@ 250 V ac
    -
    Flat
    Quick Connect
    Nylon
    Round
    Machine Controls, Elevators
    28.35mm
    45°
    -
    -
    -
    Silver
    Lorlin
    Key Trapping
    2
    -
    SP-CO
    1 A @ 24V ac dc / 115V ac
    -
    Common
    Solder
    Glass Fibre Reinforced PA
    Tapered
    -
    22.4mm
    90°
    -
    -
    -
    Silver Plated Brass
    APEM
    -
    4
    Latching
    DPDT
    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
    SPDT
    -
    IP66, IP67, IP69
    -
    Screw
    -
    -
    -
    -
    90°
    Extended product life, Low carbon manufacture
    Yes
    -
    -
    APEM
    Key Trapping
    2
    Momentary
    DPST
    4 A @ 28 V dc
    -
    Flat
    Wire Lead
    Zinc Alloy
    Round
    -
    -
    45°
    -
    -
    -
    -
    Lorlin
    Key Trapping
    2
    Momentary
    DPDT
    1 A @ 24 V dc
    -
    Random
    Solder
    Polyamide
    Tapered
    -
    29.6mm
    60°
    -
    -
    -
    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
    EAO
    Key Trapping
    2
    -
    2NC+2NO
    5 A
    IP65
    -
    Solder
    -
    -
    -
    -
    90°
    -
    -
    -
    -
    Lorlin
    -
    1
    -
    DPDT
    4 A @ 250 V ac
    -
    Flat
    Solder
    Zinc Alloy
    Round
    -
    -
    -
    -
    -
    -
    Silver Cadmium Oxide
    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
    Kaba
    -
    2
    Spring Return
    DP-CO
    20 A
    -
    Random
    Screw
    -
    Round
    -
    70.1mm
    30°
    -
    -
    -
    Silver
    Eaton
    -
    2
    Spring Return
    1 NO
    6A
    IP66
    Standard
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Siemens
    -
    2
    Latching
    -
    -
    IP66, IP67, IP69(IP69K)
    Flat
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    APEM
    -
    3
    Momentary
    -
    4 A
    -
    Common
    Solder
    Glass Filled Polyester
    Round
    Automatic Door Control, Automation Control, Communication Systems, Fire Alarm Panels, Power Distribution, Transportation
    27.3mm
    45°
    -
    -
    -
    Copper Alloy
    C & K
    -
    2
    Latching
    SPST
    4 A
    -
    Flat
    Quick Connect
    Nylon
    Round
    Cable TV Connectors, Automotive Accessories, Computers
    27.07mm
    90°
    -
    -
    -
    Silver
    Siemens
    -
    2
    Latching
    SPST, SPST
    -
    IP66, IP67, IP69
    -
    -
    -
    -
    -
    -
    90°
    Extended product life, Low carbon manufacture
    Yes
    -
    -
    EAO
    Key Trapping
    2
    -
    SPDT
    100 mA
    IP65
    -
    -
    -
    -
    -
    -
    90°
    -
    -
    -
    -
    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
    Schneider Electric
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    EAO
    Key Trapping
    2
    -
    1NC+1NO
    10 A
    IP65
    -
    Screw
    -
    -
    -
    -
    90°
    -
    -
    -
    Silver
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