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    Key Switches & Selector Switches

    A key switch or lock switch setup is an ideal way to enhance the security and safety of various important - or potentially hazardous - workplace systems and mechanisms. Our selection of key switches and covers is sourced from leading brands known for reliability, durability and quality, including APEM, C&K, Honeywell, Omron, Lorlin, Saia-Burgess and NKK Switches.

    How do key switches work, and what are the main differences between them?

    Key switches or lock switches include a range of switch types that can only be actuated when used simultaneously with a physical key. This helps prevent unauthorised access to (or accidental triggering of) whichever system, machinery or process is controlled by the key switch actuator mechanism.

    Key switches are widely used in processes such as automation control, comms systems, fire and security alarm panels, power distribution, and automatic door controls. Important factors to consider when buying key switches online include:

    • Number of positions - this can typically range anywhere between 1-6 positions, giving you full control over how many different states and potential functions the key switch is able to differentiate between as it’s turned.
    • Switch operation - common types of key switch operation include latching, momentary, maintained, snap action, and spring return. These operations can be used to control various lock switch function arrays such as off-on, on-off-start, break before make, and acc-off-ign.
    • Contact configuration - controls how the key switch behaves at various positions when turned, with common examples including Single Throw (ST), Single Pole Double Throw (SPDT), and Double Pole Double Throw (DPDT).
    • Key trapping - whether or not the key must be retained in the lock switch once actuated, in order for the relevant circuit to remain open/closed.
    • IP ratings - the level of protection you require against ingress of dirt/moisture around the key switch housing, dependent on environmental conditions.
    • Key switch covers and key types - caps, covers and bezels can all improve security or ease of access to key switch modules, while key types can range from simple fish keys to fully toothed and cut spares for various lock switch series and standards.
    Key Switch Heads
    Key Switch Heads
    Key Switch Keys & Covers
    Key Switch Keys & Covers
    Key Switches
    Key Switches
    Selector Switch Heads
    Selector Switch Heads
    Selector Switches
    Selector Switches

    2390 產品顯示為 Key Switches & Selector Switches

    1 的 120
    Better World
    Schneider Electric Harmony XB5 Series 2 Position Selector Switch Head, 22mm Cutout, Green Handle
    • RS庫存編號 609-2998
    • 製造零件編號 ZB5AK1233
    个
    HK$190.30
    ABB Short Handle Selector Switch - (1NO+1NC) 2 Positions
    • RS庫存編號 231-9427
    • 製造零件編號 1SFA619201R1076 C2SS2-10B-11
    个
    HK$211.30
    Idec Selector Switch - (DPDT) 22mm Cutout Diameter, Illuminated 3 Positions
    • RS庫存編號 168-2637
    • 製造零件編號 YW1S-3E21
    个
    HK$164.20
    C & K Key Switch, DPST, 4 A 2-Way Flat-Key
    • RS庫存編號 863-7029
    • 製造零件編號 Y2011U2C202NQ
    个
    HK$173.06
    ABB Short Handle Selector Switch - (1NO+1NC) 3 Positions
    • RS庫存編號 231-9432
    • 製造零件編號 1SFA619212R1076 C3SS3-10B-11
    个
    HK$192.00
    Lorlin Key for for Operated Switch
    • RS庫存編號 319-792
    • 製造零件編號 KEY850
    个（每托盘 2 ）
    HK$52.30
    Better World
    Schneider Electric Selector Switch - (SPDT) 30mm Cutout Diameter, Illuminated 2 Positions
    • RS庫存編號 185-3707
    • 製造零件編號 XB4FK123B5
    个
    HK$455.30
    Better World
    Schneider Electric Harmony XB4 Series 3 Position Selector Switch Head, 22mm Cutout, Red Handle
    • RS庫存編號 330-9300
    • 製造零件編號 ZB4BK1343
    个
    HK$238.50
    APEM Keylock Switch, DPDT, 4 A 2-Way Common-Key
    • RS庫存編號 125-8241
    • 製造零件編號 LK6SNB126N3
    个
    HK$102.20
    Lorlin Key Switch, SP-CO, 1 A @ 24V ac dc / 115V ac 3-Way Random-Key
    • RS庫存編號 711-8341
    • 製造零件編號 SRL-5-F-D-2
    个
    HK$83.78
    Better World
    Schneider Electric Harmony XB4 3-position Key Switch Head, Latching, 22mm Cutout
    • RS庫存編號 330-9120
    • 製造零件編號 ZB4BG0
    个
    HK$354.70
    Better World
    Siemens SIRIUS ACT 3SU10 Series 2 Position Selector Switch Head, 22mm Cutout, Black Handle
    • RS庫存編號 173-6735
    • 製造零件編號 3SU1052-2BF10-0AA0
    个
    HK$120.20
    Better World
    Schneider Electric Harmony XB4 Series 3 Position Selector Switch Head, 22mm Cutout, Green Handle
    • RS庫存編號 330-9287
    • 製造零件編號 ZB4BK1333
    个
    HK$270.00
    Better World
    Schneider Electric ZB4 2-position Key Switch Head, Latching, 22mm Cutout
    • RS庫存編號 330-9164
    • 製造零件編號 ZB4BG4
    个
    HK$320.20
    C & K Key Switch, SPST, 4 A 2-Way Flat-Key
    • RS庫存編號 863-6975
    • 製造零件編號 Y1011U2C202NQ
    个
    HK$98.60
    RS PRO 2 Position Selector Switch Head, 22mm Cutout, Amber Handle
    • RS庫存編號 188-1161
    个
    HK$44.20
    Lorlin Key Switch, DP-CO, 1 A @ 24V ac dc / 115V ac 2-Way Common-Key
    • RS庫存編號 319-770
    • 製造零件編號 SRL5MS2850
    个
    HK$125.10
    Kaba Key Switch, SP-CO, 5 A@ 250 V ac 2-Way Flat, Random-Key
    • RS庫存編號 825-635
    • 製造零件編號 K640062-NI
    个
    HK$667.90
    NKK Switches IP40 Keylock Switch, SPDT, 3 A 3-Way Flat-Key
    • RS庫存編號 196-0269
    • 製造零件編號 CKL13EFW01
    个
    HK$99.40
    Better World
    Schneider Electric Harmony XB6 Series 3 Position Selector Switch Head, 16mm Cutout, Black Handle
    • RS庫存編號 222-398
    • 製造零件編號 ZB6DD25
    个
    HK$168.10
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