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

    292 Products showing for Key Switches

    Lorlin
    Key Trapping
    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
    Kaba
    -
    2
    Momentary
    DP-CO
    20 A
    -
    Random
    Screw
    -
    Round
    -
    70.1mm
    90°
    -
    -
    -
    Silver
    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
    Lorlin
    -
    2
    On-Off
    SPST
    2 A@ 250 V ac
    -
    Tubular
    Through Hole
    Zinc Alloy
    Round
    Electromechanical
    -
    90°
    -
    -
    -
    -
    APEM
    -
    2
    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
    90°
    -
    -
    -
    Copper Alloy
    Omron
    -
    3
    Latching
    DPDT
    -
    IP65
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lorlin
    -
    2
    -
    DPCO
    4 A @ 250 V ac
    -
    Flat
    Solder
    Zinc Alloy
    Round
    -
    -
    90°
    -
    -
    -
    Silver Cadmium Oxide
    EAO
    -
    2
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lorlin
    Key Trapping
    2
    -
    DP-CO
    3 A@ 50 V dc, 5 A@ 115 V ac
    -
    Common
    Solder
    Glass Fibre Reinforced PA
    Tapered
    -
    22.4mm
    60°
    -
    -
    -
    Silver Plated Brass
    Lorlin
    Key Trapping
    2
    Latching
    Double Pole Single Throw (DPST)
    4 A @ 250 V ac
    IP67
    -
    Solder
    Glass Fibre Reinforced PA
    Tapered
    -
    40.85mm
    90°
    -
    -
    -
    Silver Cadmium Oxide
    Lorlin
    Key Trapping
    2
    -
    DPDT-NO/NC
    5 A@ 115 V ac
    -
    Random
    Solder
    Zinc Alloy
    Round
    -
    -
    60°
    -
    -
    -
    Silver Plated Brass
    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
    Idec
    -
    3
    Spring Return
    DPST
    -
    IP65
    -
    Screw
    -
    -
    -
    -
    45°
    -
    -
    -
    -
    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
    -
    2
    Latching
    2NC+2NO
    5 A
    IP65
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    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
    Eaton
    -
    2
    Latching
    SPDT
    -
    IP66
    -
    Screw
    -
    -
    -
    -
    60°
    -
    -
    -
    -
    APEM
    -
    3
    Latching
    Double Pole Single Throw (DPST)
    4 A @ 28 V dc
    -
    Flat
    Wire Lead
    Zinc Alloy
    Round
    -
    -
    45°
    -
    -
    -
    Gold Plated Copper Alloy
    Idec
    Key Trapping
    12
    Spring Return
    1NO
    10A
    IP20, IP65
    Flat
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    APEM
    -
    2
    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
    90°
    -
    -
    -
    Copper Alloy
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