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    Safety Interlock Switches & Components

    An industrial switch is a device used to interrupt or redirect the flow of electricity within a circuit. The electronic switch is a simple binary device as it can only be 'open' or 'closed'. Open allows electrons to flow and closed stops the flow. Industrial switches operate in the same manner as household switches but are offered in different styles to suite the industrial applications.

    Industrial switch types

    We stock a wide range of industrial switches, below we have covered the most popular types:

    • Limit switches - used when a presence or position of an object is required. They're usually electromagnetically operated, activating when an object makes physical contact with the actuator.
    • Reed switches - composed of two ferrous reeds in a small glass casing. The switches are magnetised and move when the magnetic field is moved towards the switch. You can see this if you place a tablet inside a protective case, it switches off as the magnet activates the reed switch.
    • Rotary switches - an alternative to a toggle or side switches, rotary switches allow the user to turn a knob or shaft that increases or decreases the resistance conducted through the contacts dependant on the direction of turn. Rotary switches allow different actuation positions, turning different circuits on/off or increasing/decreasing the value of the circuit. Some rotary switches can be configured to control multiple contacts simultaneously at a single switch position.
    • Thermistors - turn circuits on and off dependent on changes in temperature. NTC (Negative Temperature Coefficient) thermistors resistance changes as the temperature drops and are commonly used as a temperature sensor. PTC (Positive Temperature Coefficient) thermistors resistance increases as temperature rises, commonly used to provide over current protection.
    • Thermostats - used to regulate temperatures of liquid or gas. There are two main types of thermostats, capillary and bimetallic.
    • Isolator & switch disconnectors - used to ensure that a circuit is completely powered down in order for it to be serviced. They isolate a given part of the circuit by cutting off its electrical supply, making it safe to work on.
    • Non-fused switch disconnectors - provide the same functionality as switch disconnectors but instead of using a fuse to break the circuit, they use either a rotary or knife-blade disconnect.
    Hinge Switches
    Hinge Switches
    Non Contact Safety Switches
    Non Contact Safety Switches
    Safety Interlock Actuators & Magnets
    Safety Interlock Actuators & Magnets
    Safety Interlock Adapters & Mounts
    Safety Interlock Adapters & Mounts
    Safety Interlock Components
    Safety Interlock Components
    Safety Interlock Switches
    Safety Interlock Switches
    Solenoid Interlock Switches
    Solenoid Interlock Switches

    2009 Products showing for Safety Interlock Switches & Components

    1 / 101
    Omron D4NL Series Solenoid Interlock Switch, Power to Lock, 24V dc
    • RS Stock No. 757-9190
    • Mfr. Part No. D4NL-4AFG-B
    Each
    MYR1,251.31
    IDEM KP Safety Interlock Switch, 4NC, Keyed Actuator Included, Polyester
    • RS Stock No. 826-3925
    • Mfr. Part No. 200013F
    Each
    MYR179.83
    Siemens 3SE5 Series Solenoid Interlock Switch, Power to Lock, 24V dc
    • RS Stock No. 763-6937
    • Mfr. Part No. 3SE5322-0SB21
    Each
    MYR1,706.11
    SICK i110 Safety Switch, 3NC/1NO, Die Cast Zinc
    • RS Stock No. 285-1827
    • Mfr. Part No. i110-SA313
    Each
    MYR561.67
    Omron D4NL Series Safety Switch, Power to Lock, 24V dc, 1NC/1NO + 1NC/1NO
    • RS Stock No. 757-9216
    • Mfr. Part No. D4NL-1AFG-B
    Each
    MYR1,046.40
    SICK i110 Safety Switch, 3NC/1NO, Die Cast Zinc
    • RS Stock No. 285-1826
    • Mfr. Part No. i110-PA313
    Each
    MYR360.74
    Bernstein AG Actuating Magnet for Use with Magnetic Switches
    • RS Stock No. 210-1927
    • Mfr. Part No. 6402052067
    Each
    MYR61.19
    SICK TR4 Safety Switch Actuator Included, Valox
    • RS Stock No. 285-4388
    • Mfr. Part No. TR4-SBU02CB
    Each
    MYR1,367.12
    SICK TR4 Safety Switch Actuator Included, Valox
    • RS Stock No. 285-4387
    • Mfr. Part No. TR4-SBU01CB
    Each
    MYR1,367.12
    SICK TR4 Safety Switch Actuator Included, Valox
    • RS Stock No. 285-4389
    • Mfr. Part No. TR4-SBU03PB
    Each
    MYR1,367.12
    Schmersal AZM 161 Series Solenoid Interlock Switch, Power to Lock, 24V ac/dc, 4NC/2NO
    • RS Stock No. 617-5087
    • Mfr. Part No. AZM 161SK-12/12RKA-024
    Each
    MYR1,162.44
    SICK TR4 Safety Switch Actuator Included, Valox
    • RS Stock No. 285-4381
    • Mfr. Part No. TR4-SAM10PB
    Each
    MYR1,134.53
    Pilz Transponder Non-Contact Safety Switch, 24V dc, Plastic Housing, M12
    • RS Stock No. 918-6651
    • Mfr. Part No. 540000
    Each
    MYR897.00
    SICK STR1 Safety Switch Actuator Included, Vistal
    • RS Stock No. 285-4300
    • Mfr. Part No. STR1-SASU10P8
    Each
    MYR1,388.17
    Pilz 570004 Safety Switch, 2NO/2NC, Actuator Actuator Included, Guard Lock, Interlock
    • RS Stock No. 340-321
    • Mfr. Part No. 570004
    Each
    MYR1,494.18
    SICK i110 Safety Interlock Switch, 2NC, 2NO, Die Cast Zinc
    • RS Stock No. 285-9579
    • Mfr. Part No. i110-SA223
    Each
    MYR561.67
    Pilz Transponder Non-Contact Safety Switch, 24V dc, Polybutylene Terephthalate Housing, M12
    • RS Stock No. 191-9797
    • Mfr. Part No. 540003
    Each
    MYR878.59
    Banner SI-LS42 Safety Switch, 1NC/1NO Actuator Included, Thermoplastic, Spring Lock
    • RS Stock No. 295-020
    • Mfr. Part No. SI-LS42WSG
    Each
    MYR2,039.02
    Siemens 3SE5 Series Solenoid Interlock Switch, Power to Unlock, 230V ac
    • RS Stock No. 749-7690
    • Mfr. Part No. 3SE5312-0SD13
    Each
    MYR2,432.16
    SICK RE31 Safety Switch, 1NO/1NC Actuator Included, Glass Fiber Reinforced PPS, Magnet Lock
    • RS Stock No. 285-2287
    • Mfr. Part No. RE31-DAC
    Each
    MYR557.57
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