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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

    2400 Products showing for Safety Interlock Switches & Components

    1 of 120
    Pilz Magnetic Non-Contact Safety Switch, 24V dc, Plastic Housing, NO/NC, M8
    • RS Stock No. 824-4918
    • Mfr. Part No. 506406
    Each
    HK$888.48
    IDEM MMC-H Series Magnetic Non-Contact Safety Switch, 24V dc, 316 Stainless Steel Housing, 2NC, 2m Cable
    • RS Stock No. 123-7524
    • Mfr. Part No. 131105
    Each
    HK$1,073.30
    SICK RE11 Series Magnetic Non-Contact Safety Switch, 30V dc, Plastic Housing, NC, 5m Cable
    • RS Stock No. 797-4850
    • Mfr. Part No. RE11-SA05
    Each
    HK$444.20
    SICK RE13 Series Magnetic Non-Contact Safety Switch, 30V dc, Plastic Housing, 2NO, Cable
    • RS Stock No. 797-4863
    • Mfr. Part No. RE13-SA05
    Each
    HK$535.90
    Pilz PSENme Series Solenoid Interlock Switch, Power to Unlock, 24V ac/dc, Actuator Included
    • RS Stock No. 744-8651
    • Mfr. Part No. 570000
    Each
    HK$1,898.80
    ABB Jokab Non-Contact Safety Switch, Polybutylene Terephthalate Housing, M12
    • RS Stock No. 176-0019
    • Mfr. Part No. 2TLA020051R5100 Adam DYN-Info M12-5
    Each
    HK$1,206.00
    Omron D4BL Series Solenoid Interlock Switch, Power to Unlock, 24V dc
    • RS Stock No. 746-7201
    • Mfr. Part No. D4BL-2CRA
    Each
    HK$4,518.40
    Omron F3S-TGR-N_R Series Magnetic Non-Contact Safety Switch, 24V dc, Plastic Housing, NO/2NC, 2m Cable
    • RS Stock No. 215-5164
    • Mfr. Part No. F3S-TGR-NMPR-21-02
    Each
    HK$1,171.00
    Omron D4BS Safety Interlock Switch, 1NC/1NO, Keyed, Plastic
    • RS Stock No. 240-8232
    • Mfr. Part No. D4BS15FS
    Each
    HK$713.20
    Schmersal BNS303 Series Flush Magnetic Non-Contact Safety Switch, 24V dc, Plastic Housing, 2, Cable
    • RS Stock No. 617-5194
    • Mfr. Part No. BNS 303-12ZG 2,0M
    Each
    HK$882.60
    IDEM M-BS Safety Interlock Switch, Mechanical Bolt Actuator Included, Metal, Power Lock
    • RS Stock No. 185-7262
    • Mfr. Part No. M-BS (A101)
    Each
    HK$1,591.60
    Pilz 506 Series Magnetic Non-Contact Safety Switch, 24V dc, Polybutylene Terephthalate Housing, M8
    • RS Stock No. 313-692
    • Mfr. Part No. 506408
    Each
    HK$994.10
    Schmersal EX-BNS33 Series Flush Magnetic Non-Contact Safety Switch, 24V dc, Reinforced Thermoplastic Housing, 2NC, 5m
    • RS Stock No. 283-8247
    • Mfr. Part No. EX-BNS33-02ZG-2187-3G/D-5M
    Each
    HK$1,092.20
    IDEM KL1-P Series Solenoid Interlock Switch, Power to Unlock, 230V ac
    • RS Stock No. 826-3965
    • Mfr. Part No. 221307
    Each
    HK$1,280.30
    Schmersal BNS260 Series Magnetic Non-Contact Safety Switch, 24V dc, Plastic Housing, 2NC, M8
    • RS Stock No. 617-5239
    • Mfr. Part No. BNS 260-02/01ZG-ST-R
    Each
    HK$990.70
    IDEM K-SS Safety Interlock Switch, 2NC/1NO, Keyed, Stainless Steel
    • RS Stock No. 826-3896
    • Mfr. Part No. 208001
    Each
    HK$936.80
    Omron F3S-TGR-N_C Series Magnetic Non-Contact Safety Switch, 24V dc, Plastic Housing, 2NC, 5m Cable
    • RS Stock No. 746-7324
    • Mfr. Part No. F3S-TGR-NLPC-20-05
    Each
    HK$951.91
    Siemens 3SE5 Series Solenoid Interlock Switch, Power to Lock, 24V dc, Actuator Included
    • RS Stock No. 763-7075
    • Mfr. Part No. 3SE5312-0SG11
    Each
    HK$4,335.50
    Siemens 3SE5 Series Solenoid Interlock Switch, Power to Unlock, 24V dc
    • RS Stock No. 498-983
    • Mfr. Part No. 3SE5322-1SD21
    Each
    HK$2,352.60
    Siemens 3SE5 Series Solenoid Interlock Switch, 24V dc, 2NC/1NO
    • RS Stock No. 213-0798
    • Mfr. Part No. 3SE5322-0SL21
    Each
    HK$3,860.20
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