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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

3313 Products showing for Safety Interlock Switches & Components

1 of 166
In Stock
Allen Bradley Guardmaster 440G-MT Series Solenoid Interlock Switch, Power to Unlock Actuator Included
  • RS Stock No. 873-2187
  • Mfr. Part No. 440G-MT47037
Subtotal (1 unit)
£213.77(exc. VAT)
In Stock
Pilz PSENme Series Solenoid Interlock Switch, Power to Unlock Actuator Included
  • RS Stock No. 744-8651
  • Mfr. Part No. 570000
Subtotal (1 unit)
£147.86(exc. VAT)
In Stock
IDEM M-HS Safety Interlock Switch, Handle Actuator Included, Metal, Interlock
  • RS Stock No. 185-7253
  • Mfr. Part No. M-HS (A101)
Subtotal (1 unit)
£143.04(exc. VAT)
In Stock
Allen Bradley Guardmaster 440K Safety Interlock Switch, Keyed Actuator Included, Metal, Keyed
  • RS Stock No. 350-074
  • Mfr. Part No. 440K-B04025
Subtotal (1 unit)
£162.07(exc. VAT)
In Stock
Allen Bradley Guardmaster 440N Series RFID Non-Contact Safety Switch, Stainless Steel Housing, 24V dc, 2 NC, M12
  • RS Stock No. 215-586
  • Mfr. Part No. 440N-Z21S17H
Subtotal (1 unit)
£194.87(exc. VAT)
In Stock
Allen Bradley Guardmaster 440h Safety Hinge Switch 1 NO/2 NC
  • RS Stock No. 325-703
  • Mfr. Part No. 440H-R03074
Subtotal (1 unit)
£68.68(exc. VAT)
Temporarily out of stock
IDEM M-ISB1 Safety Interlock Switch, Keyed, Stainless Steel, Interlock
  • RS Stock No. 185-7246
  • Mfr. Part No. M-ISB1-25 (A101)
Subtotal (1 unit)
£193.51(exc. VAT)
In Stock
Allen Bradley Guardmaster 440T Safety Interlock Switch, Keyed, Stainless Steel, Interlock
  • RS Stock No. 394-7485
  • Mfr. Part No. 440T-MDALE100A0B
Subtotal (1 unit)
£512.04(exc. VAT)
In Stock
Bernstein AG BF Safety Interlock Switch Actuator Included, Aluminium
  • RS Stock No. 189-5322
  • Mfr. Part No. 6051201008
Subtotal (1 unit)
£149.66(exc. VAT)
In Stock
IDEM KLP-P2L Series Solenoid Interlock Switch, Power to Lock
  • RS Stock No. 123-7511
  • Mfr. Part No. 201021
Subtotal (1 unit)
£172.08(exc. VAT)
In Stock
Allen Bradley Guardmaster Trojan T15 Safety Rated Interlock Switch, Keyed Actuator Included, Fibreglass Reinforced
  • RS Stock No. 426-4517
  • Mfr. Part No. 440K-T11305
Subtotal (1 unit)
£39.33(exc. VAT)
In Stock
Allen Bradley Guardmaster 440N Series Magnetic Non-Contact Safety Switch, Plastic Housing, 24V dc, 2 NC, 3 m Cable
  • RS Stock No. 703-4864
  • Mfr. Part No. 440N-Z21W1PA
Subtotal (1 unit)
£89.22(exc. VAT)
In Stock
Allen Bradley Guardmaster 440G-T Series Solenoid Interlock Switch, Power to Lock Actuator Included
  • RS Stock No. 792-3118
  • Mfr. Part No. 440G-T27256
Subtotal (1 unit)
£247.68(exc. VAT)
In Stock
IDEM M-KE Safety Interlock Switch, Keyed, Metal, Interlock
  • RS Stock No. 185-7261
  • Mfr. Part No. M-KE-NS4 (A101, B201, C301, D401)
Subtotal (1 unit)
£463.00(exc. VAT)
In Stock
Allen Bradley Guardmaster 440G-L Series Solenoid Interlock Switch, Power to Unlock Actuator Included
  • RS Stock No. 443-8336
  • Mfr. Part No. 440G-L07255
Subtotal (1 unit)
£666.11(exc. VAT)
In Stock
SICK i200 Series Solenoid Interlock Switch Power to Lock/Unlock
  • RS Stock No. 223-0989
  • Mfr. Part No. I200-M0323LOCK / 6025113
Subtotal (1 unit)
£241.73(exc. VAT)
In Stock
Allen Bradley Guardmaster 440K Safety Interlock Switch, Keyed Actuator Included, Zinc, Interlock
  • RS Stock No. 378-1645
  • Mfr. Part No. 440K-MT55001
Subtotal (1 unit)
£82.95(exc. VAT)
In Stock
Allen Bradley Guardmaster 440N Series RFID Non-Contact Safety Switch, Plastic Housing, 24V dc, 3 PNP, 3 m Cable
  • RS Stock No. 215-772
  • Mfr. Part No. 440N-Z21S26A
Subtotal (1 unit)
£155.98(exc. VAT)
In Stock
IDEM KLM Series Solenoid Interlock Switch, Power to Unlock
  • RS Stock No. 826-3997
  • Mfr. Part No. 202001-SS
Subtotal (1 unit)
£189.17(exc. VAT)
In Stock
Schmersal BNS16 Series Magnetic Safety Switch, Plastic Housing, 100V dc, 2 NO, NC, M20
  • RS Stock No. 617-5273
  • Mfr. Part No. BNS16 12ZV
Subtotal (1 unit)
£104.50(exc. VAT)
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