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

3177 Products showing for Safety Interlock Switches & Components

1 of 159
In Stock
Schmersal RSS 36 Series RFID Non-Contact Safety Switch, Fibreglass Reinforced Thermoplastic Housing, 26.4V dc, 2 PNP,
  • RS stock no. 880-1747
  • Mfr. Part No. RSS 36-D-R-ST
Subtotal (1 unit)
R 5 281,88(exc. VAT)
In Stock
Pilz PSEN cs3.1p Series Transponder Non-Contact Safety Switch, Plastic Housing, 24V dc, M8
  • RS stock no. 284-2870
  • Mfr. Part No. 541065
Subtotal (1 unit)
R 2 399,21(exc. VAT)
In Stock
Schmersal Actuator for Use with AZ Safety Switch
  • RS stock no. 211-1578
  • Mfr. Part No. AZ 15/16-B3
Subtotal (1 unit)
R 293,42(exc. VAT)
In Stock
Schmersal BPS 260 Series Magnetic Actuator, Fibreglass Reinforced Thermoplastic Housing, 75V dc, 1 NO/2 NC, Magnetic
  • RS stock no. 617-5374
  • Mfr. Part No. BPS 260-1
Subtotal (1 unit)
R 333,66(exc. VAT)
In Stock
Telemecanique Sensors XCS Series Magnetic Non-Contact Safety Switch, Thermoplastic Housing, 24V dc, 1 NO, 1 NC, Screw
  • RS stock no. 198-706
  • Mfr. Part No. XCSZP1
Subtotal (1 unit)
R 710,65(exc. VAT)
In Stock
IDEM KM Safety Interlock Switch, Key Actuator Included, Metal, Interlock
  • RS stock no. 826-3915
  • Mfr. Part No. 203007F
Subtotal (1 unit)
R 1 406,35(exc. VAT)
Limited stock
Pilz 541 Series Transponder Non-Contact Safety Switch, Polybutylene Terephthalate Housing, 24V dc, M8
  • RS stock no. 313-720
  • Mfr. Part No. 541060
Subtotal (1 unit)
R 2 036,15(exc. VAT)
In Stock
Pilz 502221 Series Magnetic Safety Switch, Polybutylene Terephthalate Housing, 24V dc, 1 NO/1 NC, M8
  • RS stock no. 340-280
  • Mfr. Part No. 502221
Subtotal (1 unit)
R 1 515,43(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)
R 4 347,21(exc. VAT)
In Stock
IDEM SPR Series Magnetic Non-Contact Safety Switch, Plastic Housing, 24V dc, 2 NC, M12
  • RS stock no. 826-4283
  • Mfr. Part No. 111015
Subtotal (1 unit)
R 2 333,87(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)
R 6 139,85(exc. VAT)
In Stock
RS PRO Safety Interlock Switch, Plastic
  • RS stock no. 179-7564
Subtotal (1 unit)
R 725,04(exc. VAT)
In Stock
Omron Actuator for Use with D4NS Safety Switch
  • RS stock no. 549-514
  • Mfr. Part No. D4DS-K2
Subtotal (1 unit)
R 52,97(exc. VAT)
In Stock
IDEM KL3-SS Series Solenoid Interlock Switch, Power to Unlock
  • RS stock no. 826-4000
  • Mfr. Part No. 205001
Subtotal (1 unit)
R 8 857,55(exc. VAT)
In Stock
Pilz PSEN Series Transponder Non-Contact Safety Switch, Plastic Housing, 24V dc, M12
  • RS stock no. 918-6655
  • Mfr. Part No. 541009
Subtotal (1 unit)
R 2 594,09(exc. VAT)
In Stock
Telemecanique Sensors Actuator for Use with XCSA Safety Switch, XCSE Safety Switch, XCSB Safety Switch
  • RS stock no. 252-3858
  • Mfr. Part No. XCSZ03
Subtotal (1 unit)
R 772,98(exc. VAT)
In Stock
SICK RE21 Series Magnetic Non-Contact Safety Switch, Plastic Housing, 30V dc, NC, M8
  • RS stock no. 797-4866
  • Mfr. Part No. RE21-SAC
Subtotal (1 unit)
R 1 268,74(exc. VAT)
In Stock
Allen Bradley Guardmaster 440N Series RFID Non-Contact Safety Switch, Plastic Housing, 24V dc, 3 PNP, M12
  • RS stock no. 215-794
  • Mfr. Part No. 440N-Z21S16H
Subtotal (1 unit)
R 3 038,19(exc. VAT)
In Stock
Allen Bradley Guardmaster 440N Series RFID Non-Contact Safety Switch, Plastic Housing, 24V dc, 2 PNP, Connector
  • RS stock no. 751-1002
  • Mfr. Part No. 440N-Z21US2HN9
Subtotal (1 unit)
R 4 900,47(exc. VAT)
In Stock
Siemens 3SE6 Series Magnetic Non-Contact Safety Switch, Plastic Housing, 100V dc, 4, 3 m Cable
  • RS stock no. 749-7729
  • Mfr. Part No. 3SE6604-2BA
Subtotal (1 unit)
R 1 922,53(exc. VAT)
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