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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

    2804 Products showing for Safety Interlock Switches & Components

    1 of 141
    Allen Bradley Guardmaster 440N Series Magnetic Non-Contact Safety Switch, Plastic Housing, 2NC, 3m Cable
    • RS Stock No. 703-4858
    • Mfr. Part No. 440N-Z2NRS1A
    Each
    £56.85
    Schmersal Actuator, Plastic Housing
    • RS Stock No. 198-7863
    • Mfr. Part No. BPS 33
    Each
    £11.50
    Telemecanique Sensors XCSDMP Series Magnetic Non-Contact Safety Switch, 24V dc, Thermoplastic Housing, NO/2NC, 10m Cable
    • RS Stock No. 195-1907
    • Mfr. Part No. XCSDMP70110
    Each
    £112.80
    Pilz PSENmag Series Magnetic Non-Contact Safety Switch, 24V dc, Plastic Housing, 2NO, M8
    • RS Stock No. 619-2824
    • Mfr. Part No. 504223
    Each
    £88.07
    Allen Bradley Guardmaster 440K Safety Interlock Switch, 2NC, Keyed Actuator Included, Glass Filled PBT
    • RS Stock No. 489-4887
    • Mfr. Part No. 440K-E33041
    Each
    £34.05
    Schmersal BNS33 Series Magnetic Non-Contact Safety Switch, 24V dc, Plastic Housing, NO/NC, Cable
    • RS Stock No. 623-3133
    • Mfr. Part No. BNS 33-11ZG-2M
    Each
    £55.01
    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
    Allen Bradley Guardmaster 440K Safety Interlock Switch, 2NC/1NO, Keyed Actuator Included, Glass Filled PBT
    • RS Stock No. 792-3082
    • Mfr. Part No. 440K-T11467
    Each
    £52.83
    Allen Bradley Guardmaster 440N Series Magnetic Non-Contact Safety Switch, 250 V ac, 300V dc, Plastic Housing, NO/NC, 3m
    • RS Stock No. 335-5763
    • Mfr. Part No. 440N-S32023
    Each
    £83.90
    Allen Bradley 440K Safety Interlock Switch, 2NC/1NO, Keyed Actuator Included, Glass Filled PBT
    • RS Stock No. 178-181
    • Mfr. Part No. 440K-T11090
    Each
    £46.55
    Allen Bradley Guardmaster 440N Series Magnetic Non-Contact Safety Switch, Plastic Housing, 2NC, 10m Cable
    • RS Stock No. 703-4851
    • Mfr. Part No. 440N-Z2NRS1B
    Each
    £75.82
    Telemecanique Sensors XCSDMP Series Magnetic Non-Contact Safety Switch, 24V dc, Thermoplastic Housing, 2NC, 10m Cable
    • RS Stock No. 195-1908
    • Mfr. Part No. XCSDMP79010
    Each
    £95.40
    Telemecanique Sensors XCS-DMP Series Magnetic Non-Contact Safety Switch, 24V dc, Plastic Housing, NC
    • RS Stock No. 766-1649
    • Mfr. Part No. XCSDMP500L01M12
    Each
    £114.00
    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
    ABB Jokab Non-Contact Safety Switch
    • RS Stock No. 176-0036
    • Mfr. Part No. 2TLA020046R0800 Eva General code
    Each
    £24.86
    Allen Bradley Guardmaster 440T Safety Interlock Switch, 4NO, Keyed, Stainless Steel
    • RS Stock No. 394-7536
    • Mfr. Part No. 440T-MRPSE100A
    Each
    £212.68
    Telemecanique Sensors XCSPA Safety Interlock Switch, 1NC/1NO, Keyed, Polyamide
    • RS Stock No. 252-3864
    • Mfr. Part No. XCSPA591
    Each
    £44.60
    Allen Bradley Guardmaster 440N Series Magnetic Non-Contact Safety Switch, 250 V ac, 300V dc, Plastic Housing, NO/NC, 3m
    • RS Stock No. 334-0777
    • Mfr. Part No. 440N-S32015
    Each
    £64.34
    Idec HS1L Series Solenoid Interlock Switch, 1NC/1NC + 1NC + 1NC
    • RS Stock No. 179-4723
    • Mfr. Part No. HS1L-DT44KMSR-R
    Each
    £276.94
    Pilz Magnetic Non-Contact Safety Switch, 24V dc, Plastic Housing, 2NO, M8
    • RS Stock No. 619-2818
    • Mfr. Part No. 504220
    Each
    £61.70
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