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.

    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 systems
    • Data cabinets or servers
    • Fuses boxes
    • Processing or assembly lines
    • Large or heavy-duty machinery

    298 Products showing for Key Switches

    Siemens
    Key Trapping
    2
    Latching
    SPST
    -
    IP20
    -
    Screw
    Plastic
    Round
    -
    -
    90°
    Extended product life, Low carbon manufacture
    Yes
    -
    Metal
    Idec
    -
    3
    Spring Return
    DPDT
    -
    IP65
    -
    Screw
    -
    -
    -
    -
    45°
    -
    -
    -
    -
    Eaton
    -
    2
    Spring Return
    -
    -
    IP66
    MS3
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lorlin
    -
    2
    -
    DPDT
    5 A @ 115 V ac
    -
    Flat
    Solder
    -
    Round
    -
    -
    90°
    -
    -
    -
    -
    Schneider Electric
    -
    2
    Spring Return
    SPST
    -
    -
    -
    Screw
    -
    -
    -
    -
    90°
    -
    Yes
    Green Premium
    Silver Alloy
    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
    Lorlin
    Key Trapping
    2
    -
    DPDT
    1 A @ 24 V dc
    -
    Common
    Solder
    Glass Fibre Reinforced PA
    Tapered
    -
    29.6mm
    60°
    -
    -
    -
    Silver Plated Brass
    APEM
    Key Trapping
    3
    Momentary
    Double Pole Single Throw (DPST)
    4 A @ 28 V dc
    -
    Flat
    Wire Lead
    Zinc Alloy
    Round
    -
    -
    45°
    -
    -
    -
    -
    Eaton
    -
    2
    Spring Return
    -
    -
    IP66
    MS5
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    EAO
    Key Trapping
    2
    Maintained, Reset
    -
    -
    IP65
    Straight
    Screw
    -
    Round
    -
    53mm
    90°
    -
    -
    -
    -
    APEM
    Key Trapping
    2
    Momentary
    Double Pole Single Throw (DPST)
    4 A @ 28 V dc
    -
    Flat
    Wire Lead
    Zinc Alloy
    Round
    -
    -
    45°
    -
    -
    -
    -
    Idec
    Key Trapping
    12
    Spring Return
    1NO
    10A
    IP20, IP65
    Flat
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    C & K
    -
    2
    Momentary
    DPST
    4 A
    -
    Flat
    Solder
    Glass Filled Polyester
    Round
    Point of Sale Terminal, Cash Register, Computer
    23.14mm
    45°
    -
    -
    -
    Silver
    Siemens
    Key Trapping
    2
    Latching
    -
    -
    IP65
    Standard
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    EAO
    Key Trapping
    2
    -
    1NC+1NO
    10 A
    IP65
    -
    Screw
    -
    -
    -
    -
    90°
    -
    -
    -
    Silver
    Eaton
    -
    2
    Latching
    2 NO
    6A
    IP66
    Standard
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Kaba
    -
    2
    Spring Return
    DP-CO
    10 A
    -
    Common
    Screw
    -
    Round
    -
    76.5mm
    30°
    -
    -
    -
    Silver
    Schneider Electric
    -
    2
    -
    1NO
    -
    IP66, IP67, IP69(IP69K)
    -
    Screw
    -
    -
    -
    -
    90°
    -
    Yes
    Green Premium
    Silver Alloy
    EAO
    -
    3
    -
    -
    -
    IP65
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lorlin
    -
    2
    -
    DP-CO
    3 A@ 50 V dc, 5 A@ 115 V ac
    -
    Common
    Solder
    Glass Fibre Reinforced PA
    -
    -
    22.4mm
    60°
    -
    -
    -
    Silver Plated Brass
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