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

    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)
    EAO
    -
    3
    Snap Action
    2 NC / 2 NO
    5A
    IP65
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lorlin
    Key Trapping
    2
    -
    SPDT
    1 A @ 24V ac dc / 115V ac
    -
    Random
    Solder
    Zinc Alloy
    Round
    -
    -
    90°
    -
    -
    -
    Silver Plated Brass
    Lorlin
    Key Trapping
    2
    -
    DPDT
    1 A @ 24V ac dc / 115V ac
    -
    Random
    Solder
    Zinc Alloy
    Round
    -
    -
    60°
    -
    -
    -
    Silver Plated Brass
    Siemens
    -
    2
    Latching
    SPST
    -
    -
    -
    Screw
    -
    -
    -
    -
    90°
    Extended product life, Low carbon manufacture
    Yes
    -
    -
    Eaton
    -
    3
    Latching, Momentary
    -
    -
    IP64
    Flat
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    NKK Switches
    Key Trapping
    2
    On-On
    SPDT
    3 A
    -
    -
    Solder
    -
    -
    High Security
    35.2mm
    90°
    -
    -
    -
    Silver
    EAO
    -
    3
    -
    -
    -
    IP65
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    APEM
    Key Trapping
    2
    Latching
    DPST
    4 A @ 28 V dc
    -
    Flat
    Wire Lead
    Zinc Alloy
    Round
    -
    -
    90°
    -
    -
    -
    Gold Plated Copper Alloy
    Idec
    -
    3
    Maintained
    DPDT
    -
    IP65
    Common
    Screw
    -
    -
    -
    -
    45°
    -
    -
    -
    -
    Lorlin
    -
    3
    -
    -
    150 mA @ 250 V ac
    -
    Flat
    Solder
    Glass Fibre Reinforced PA
    -
    -
    48.7mm
    180°
    -
    -
    -
    Silver Plated Brass
    Schneider Electric
    -
    2
    Spring Return
    SPST
    -
    -
    -
    Screw
    -
    -
    -
    -
    90°
    -
    Yes
    Green Premium
    Silver Alloy
    Schneider Electric
    -
    2
    -
    1NO
    -
    IP65
    -
    Screw
    -
    -
    -
    -
    90°
    -
    Yes
    Green Premium
    Silver Alloy
    NKK Switches
    Key Trapping
    3
    On-Off-On
    SPDT
    3 A
    IP40
    Flat
    Solder Lug
    -
    -
    -
    16mm
    -
    -
    -
    -
    Silver
    Eaton
    -
    3
    Latching
    2 NO
    6A
    IP66
    Standard
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    C & K
    -
    2
    Latching
    SPST
    4 A
    -
    Flat
    Through Hole
    Glass Filled Polyester
    Round
    Point of Sale Terminal, Cash Register, Computer
    23.14mm
    90°
    -
    -
    -
    Silver
    C & K
    -
    2
    Latching
    SPST
    12 A@ 125 V ac, 6 A@ 250 V ac
    -
    Flat
    Quick Connect
    Nylon
    Round
    Machine Controls, Elevators
    28.35mm
    90°
    -
    -
    -
    Silver
    Lorlin
    -
    2
    Off-On
    SPST
    500 mA @ 24 V
    -
    Flat, Random
    Solder
    Zinc Alloy
    Round
    -
    -
    90°
    -
    -
    -
    -
    APEM
    -
    2
    Latching
    DPST
    4 A @ 28 V dc
    -
    Flat
    Wire Lead
    Zinc Alloy
    Round
    -
    -
    90°
    -
    -
    -
    Gold Plated Copper Alloy
    C & K
    -
    3
    Latching
    SPST
    4 A
    -
    Flat
    Solder
    Glass Filled Polyester
    Round
    Point of Sale Terminal, Cash Register, Computer
    23.14mm
    45°
    -
    -
    -
    Silver
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