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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

    2803 Products showing for Safety Interlock Switches & Components

    2 of 141
    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
    £76.48
    IDEM KLP-P2L Series Solenoid Interlock Switch, Power to Lock, 24V dc
    • RS Stock No. 123-7511
    • Mfr. Part No. 201021
    Each
    £160.78
    Telemecanique Sensors XCSPA Safety Interlock Switch, 1NC/1NO, Keyed, Polyamide
    • RS Stock No. 252-3864
    • Mfr. Part No. XCSPA591
    Each
    £44.60
    Omron D4NS Series Safety Interlock Switch, 1NC/1NO
    • RS Stock No. 746-7292
    • Mfr. Part No. D4NS-4AF
    Each
    £33.79
    IDEM KLM Series Solenoid Interlock Switch, Power to Unlock, 24V ac/dc
    • RS Stock No. 826-3997
    • Mfr. Part No. 202001-SS
    Each
    £165.66
    Schmersal Key
    • RS Stock No. 198-7481
    • Mfr. Part No. TRIANGULAR KEY TK-M5
    Each
    £9.82
    Allen Bradley Guardmaster 440K Safety Interlock Switch, 2NC/1NO, Tongue Actuator Included, Metal
    • RS Stock No. 226-3174
    • Mfr. Part No. 440K-B04026
    Each
    £160.47
    Pilz Magnetic Non-Contact Safety Switch, 24V dc, Plastic Housing, NO/NC, M8
    • RS Stock No. 824-4914
    • Mfr. Part No. 506405
    Each
    £51.17
    Allen Bradley Guardmaster 440K Safety Interlock Switch, 2NC/1NO, Keyed Actuator Included, Glass Filled PBT
    • RS Stock No. 251-2016
    • Mfr. Part No. 440K-T11118
    Each
    £46.55
    Omron F3S-TGR-N Series Magnetic Non-Contact Safety Switch, 24V dc, Plastic Housing, 2NC, 5m Cable
    • RS Stock No. 214-7676
    • Mfr. Part No. F3S-TGR-NMPC-20-05
    Each
    £88.15
    Allen Bradley Guardmaster Key
    • RS Stock No. 394-7615
    • Mfr. Part No. 440T-AKEYE100B
    Each
    £38.93
    Telemecanique Sensors XCS-DMP Series Magnetic Non-Contact Safety Switch, 24V dc, Plastic Housing, 2NC, Cable
    • RS Stock No. 422-5095
    • Mfr. Part No. XCSDMP7002
    Each
    £91.00
    IDEM KLP Series Solenoid Interlock Switch, Power to Unlock, 24V ac/dc
    • RS Stock No. 826-3993
    • Mfr. Part No. 201001
    Each
    £132.22
    Allen Bradley Guardmaster 440K Safety Interlock Switch, 2NC/1NO, Keyed Actuator Included, Glass Filled PBT
    • RS Stock No. 873-2203
    • Mfr. Part No. 440K-T11339
    Each
    £60.44
    IDEM M-ISP Safety Interlock Switch, Keyed, Stainless Steel
    • RS Stock No. 185-7247
    • Mfr. Part No. M-ISP-25 (A101)
    Each
    £140.08
    Allen Bradley Guardmaster 440N Series Magnetic Non-Contact Safety Switch, 24V dc, Stainless Steel Housing, 2NC, 3m Cable
    • RS Stock No. 351-3947
    • Mfr. Part No. 440N-G02123
    Each
    £245.24
    Allen Bradley Guardmaster 440T Safety Interlock Switch, Keyed Actuator Included, Stainless Steel
    • RS Stock No. 183-6015
    • Mfr. Part No. 440T-MDALE100C0D
    Each
    £505.23
    Schmersal Actuator, Plastic Housing
    • RS Stock No. 198-7863
    • Mfr. Part No. BPS 33
    Each
    £11.50
    Allen Bradley Guardmaster 440N Series Magnetic Non-Contact Safety Switch, 24V dc, Plastic Housing, 2NC, M12
    • RS Stock No. 703-4855
    • Mfr. Part No. 440N-Z21W1PH
    Each
    £88.34
    Omron D4NS Safety Interlock Switch, 1NC/1NO, Keyed, Plastic
    • RS Stock No. 215-5054
    • Mfr. Part No. D4NS-1AF
    Each
    £33.79
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