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
    4 A
    -
    Flat
    Through Hole
    Glass Filled Polyester
    Round
    Point of Sale Terminal, Cash Register, Computer
    23.14mm
    90°
    -
    -
    -
    Silver
    Saia-Burgess
    -
    3
    Off-On-On
    -
    100 mA @ 30 V dc
    -
    Common
    Through Hole
    Glass Fibre Reinforced Nylon
    Rectangular
    -
    19.8mm
    90°
    -
    -
    -
    Gold Plated Brass (Stationary); Gold Plated Phosphor Bronze (Movable)
    Kaba
    -
    2
    Latching
    SPDT
    5 A @ 250 V ac
    -
    Flat
    Solder
    -
    Round
    -
    -
    -
    -
    -
    -
    -
    C & K
    -
    2
    Latching
    DPST
    4 A
    -
    Flat
    Solder
    Glass Filled Polyester
    Round
    Point of Sale Terminal, Cash Register, Computer
    23.14mm
    90°
    -
    -
    -
    Silver
    Lorlin
    -
    2
    Off-On
    SPST
    500 mA @ 24 V
    -
    Flat, Random
    Solder
    Zinc Alloy
    Round
    -
    -
    90°
    -
    -
    -
    -
    Lorlin
    Key Trapping
    2
    -
    SPDT
    1 A @ 24 V dc
    -
    Common
    Solder
    Glass Fibre Reinforced PA
    Tapered
    -
    29.6mm
    90°
    -
    -
    -
    Silver Plated Brass
    Siemens
    Key Trapping
    2
    Latching
    SPST
    -
    IP20
    -
    Screw
    Plastic
    Round
    -
    -
    90°
    Extended product life, Low carbon manufacture
    Yes
    -
    Metal
    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
    Lorlin
    Key Trapping
    2
    -
    SPDT
    1 A @ 24V ac dc / 115V ac
    -
    Random
    Solder
    Zinc Alloy
    Round
    -
    -
    90°
    -
    -
    -
    Silver Plated Brass
    Siemens
    Key Trapping
    2
    Latching
    -
    -
    IP65
    Standard
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lorlin
    Key Trapping
    3
    Latching
    SPST
    1 A @ 115 V ac
    IP66, IP67
    Common
    Solder
    Nylon 66
    Round
    Marine
    22.4mm
    90°
    -
    -
    -
    Brass CZ108
    Idec
    -
    3
    Latching
    2CO
    1A
    IP65
    Round
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    C & K
    -
    4
    Latching
    SP4T
    4 A
    -
    Flat
    Solder
    Glass Filled Polyester
    Round
    Point of Sale Terminal, Cash Register, Computer
    23.14mm
    45°
    -
    -
    -
    Silver
    APEM
    Key Trapping
    2
    Momentary
    DPST
    4 A @ 28 V dc
    -
    Flat
    Wire Lead
    Zinc Alloy
    Round
    -
    -
    45°
    -
    -
    -
    -
    Eaton
    -
    2
    Latching
    1 NO
    6A
    IP66
    Standard
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Idec
    Key Trapping
    12
    Spring Return
    1NO
    10A
    IP20, IP65
    Flat
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lorlin
    Key Trapping
    3
    Latching
    SPST
    1 A @ 115 V ac
    IP66, IP67
    Common
    Solder
    Nylon 66
    Round
    Marine
    22.4mm
    90°
    -
    -
    -
    Brass CZ108
    Eaton
    -
    3
    Latching
    -
    -
    IP64
    Ronis
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lorlin
    Key Trapping
    2
    Latching
    DPST
    1 A @ 115 V ac
    IP66, IP67
    Common
    Solder
    Nylon 66
    Round
    Marine
    22.4mm
    60°
    -
    -
    -
    Brass CZ108
    Kaba
    -
    2
    Latching
    DP-CO
    10 A
    -
    Random
    Screw
    -
    Round
    -
    76.5mm
    180°
    -
    -
    -
    Silver
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