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

    Kaba
    -
    2
    Momentary
    DP-CO
    10 A
    -
    Common
    Screw
    -
    Round
    -
    76.5mm
    90°
    -
    -
    -
    Silver
    Lorlin
    Key Trapping
    2
    -
    DP-CO
    1 A @ 24V ac dc / 115V ac
    -
    Common
    Solder
    Glass Fibre Reinforced PA
    Tapered
    -
    22.4mm
    60°
    -
    -
    -
    Silver Plated Brass
    C & K
    -
    2
    Latching
    SPST
    4 A
    -
    Flat
    Wire Lead
    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°
    -
    -
    -
    -
    Idec
    Key Trapping
    2
    Spring Return
    DPDT
    1 A
    IP40, IP65
    Common
    Tab
    Plastic
    Round
    Office And Factory
    23mm
    90°
    -
    -
    -
    Gold Plated Silver
    Saia-Burgess
    -
    3
    -
    -
    100 mA @ 30 V dc
    -
    -
    Through Hole
    Glass Fibre Reinforced Nylon
    Square
    -
    19.8mm
    90°
    -
    -
    -
    Gold Plated Brass (Stationary); Gold Plated Phosphor Bronze (Movable)
    Eaton
    -
    2
    Latching
    -
    -
    IP66
    MS3
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    EAO
    -
    3
    Snap Action
    2 NC / 2 NO
    5A
    IP65
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    EAO
    Key Trapping
    2
    Latching
    -
    5 A @ 250 V ac
    IP65 (Front); IP40 (Rear)
    -
    -
    Polyamide
    -
    -
    42mm
    90°
    -
    -
    -
    Gold Plated Silver
    Lorlin
    -
    2
    -
    SPDT
    5 A@ 115 V ac
    IP66, IP67
    Random
    Solder
    Zinc Alloy
    Round
    -
    -
    90°
    -
    -
    -
    Silver Plated Brass
    APEM
    -
    2
    Momentary
    SPDT
    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
    EAO
    Key Trapping
    2
    -
    SPDT
    100 mA
    IP65
    -
    -
    -
    -
    -
    -
    90°
    -
    -
    -
    -
    Lorlin
    Key Trapping
    2
    Momentary
    DPDT
    1 A @ 24 V dc
    -
    Random
    Solder
    Polyamide
    Tapered
    -
    29.6mm
    60°
    -
    -
    -
    Silver Plated Brass
    EAO
    Key Trapping
    2
    Off-On, Snap Action
    1NC+1NO
    5 A @ 250 V ac
    IP65
    Flat
    PCB Pin
    Plastic
    Round
    High Security
    35.5 → 58mm
    90°
    -
    -
    -
    Gold
    EAO
    Key Trapping
    2
    Maintained, Reset
    -
    -
    IP65
    Straight
    Screw
    -
    Round
    -
    53mm
    90°
    -
    -
    -
    -
    Idec
    -
    2
    Maintained
    SPST
    -
    IP65
    -
    Screw
    -
    -
    -
    -
    90°
    -
    -
    -
    -
    Lorlin
    -
    1
    -
    DPDT
    4 A @ 250 V ac
    -
    Flat
    Solder
    Zinc Alloy
    Round
    -
    -
    -
    -
    -
    -
    Silver Cadmium Oxide
    NKK Switches
    Key Trapping
    2
    On-On
    SPDT
    3 A
    -
    -
    Solder
    -
    -
    High Security
    35.2mm
    90°
    -
    -
    -
    Silver
    Lorlin
    Key Trapping
    2
    Latching
    DPST
    4 A @ 250 V ac
    IP67
    -
    Solder
    Glass Fibre Reinforced PA
    Tapered
    -
    40.85mm
    90°
    -
    -
    -
    Silver Cadmium Oxide
    Kaba
    -
    2
    Spring Return
    DP-CO
    20 A
    -
    Random
    Screw
    -
    Round
    -
    70.1mm
    30°
    -
    -
    -
    Silver
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