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

2768 Products showing for Safety Interlock Switches & Components

1 of 139
In Stock
Pilz PSEN Series Magnetic Non-Contact Safety Switch, Plastic Housing, 24V dc, NC, NO, M8
  • RS Stock No. 824-4918
  • Mfr. Part No. 506406
Subtotal (1 unit)
HK$889.80
Stocked by manufacturer
Bernstein AG MA-42 Series Magnetic Non-Contact Safety Switch, Polyamide 6 Housing, 170V dc, 1 NO/1 NC, M8
  • RS Stock No. 210-1938
  • Mfr. Part No. 6490642321
Subtotal (1 unit)
HK$457.48
In Stock
Omron D40A Series Magnetic Non-Contact Safety Switch, Polybutylene Terephthalate Housing, 125V dc, 1 NO, Cable
  • RS Stock No. 746-7191
  • Mfr. Part No. D40A-1C5
Subtotal (1 unit)
HK$1,516.20
In Stock
Siemens 3SE5 Series Solenoid Interlock Switch, Power to Unlock Actuator Included
  • RS Stock No. 498-983
  • Mfr. Part No. 3SE5322-1SD21
Subtotal (1 unit)
HK$5,481.60
Limited stock
Telemecanique Sensors XCS-DMP Series Magnetic Non-Contact Safety Switch, Plastic Housing, 100V dc, 1 NO/2 NC, M12
  • RS Stock No. 766-1661
  • Mfr. Part No. XCSDMP701L01M12
Subtotal (1 unit)
HK$1,190.20
In Stock
SICK RE11 Series Magnetic Non-Contact Safety Switch, Plastic Housing, 30V dc, NC, 5 m Cable
  • RS Stock No. 797-4850
  • Mfr. Part No. RE11-SA05
Subtotal (1 unit)
HK$484.60
In Stock
IDEM SPR Series Magnetic Non-Contact Safety Switch, Plastic Housing, 24V dc, 2 NC, M12
  • RS Stock No. 826-4280
  • Mfr. Part No. 111014
Subtotal (1 unit)
HK$765.90
In Stock
Omron F3S-TGR-N_R Series Magnetic Non-Contact Safety Switch, Plastic Housing, 24V dc, NO, 2 NC, 2 m Cable
  • RS Stock No. 215-5164
  • Mfr. Part No. F3S-TGR-NMPR-21-02
Subtotal (1 unit)
HK$1,229.20
In Stock
Omron F3S-TGR-N_C Series Hall Coded Non-Contact Safety Switch, Stainless Steel Housing, 24V, 2 NC, NO, 2 m Cable
  • RS Stock No. 549-508
  • Mfr. Part No. F3S-TGR-NSMC-21-02
Subtotal (1 unit)
HK$1,817.00
Stocked by manufacturer
WIKA L-BGU-S Series Magnetic Non-Contact Safety Switch, Aluminium Housing, M16
  • RS Stock No. 266-4295
  • Mfr. Part No. 48663694
Subtotal (1 unit)
HK$3,858.10
In Stock
Omron D4NS Series Solenoid Interlock Switch Power to Lock/Unlock
  • RS Stock No. 757-9231
  • Mfr. Part No. D4NS-1BF
Subtotal (1 unit)
HK$512.40
In Stock
Idec HS5L Safety Interlock Switch, Keyed Actuator Included, Solenoid Lock
  • RS Stock No. 179-4744
  • Mfr. Part No. HS5L-VA7Y4M-G
Subtotal (1 unit)
HK$1,282.50
Temporarily out of stock
Idec Actuator for Use with HS5 Interlock Switch
  • RS Stock No. 179-4766
  • Mfr. Part No. HS9Z-A55
Subtotal (1 unit)
HK$74.80
In Stock
Eaton LS-XG-ZBZ Series Interlock Key
  • RS Stock No. 181-1202
  • Mfr. Part No. 106833 LS-XG-ZBZ
Subtotal (1 unit)
HK$80.90
In Stock
Schmersal Safety Sensor
  • RS Stock No. 284-0225
  • Mfr. Part No. EX-BNS303-12Z-2187-3G/D-5M
Subtotal (1 unit)
HK$1,521.60
In Stock
Schmersal Actuator
  • RS Stock No. 146-5801
  • Mfr. Part No. AZM400-B1
Subtotal (1 unit)
HK$944.80
Temporarily out of stock
Eaton IEC/EN 60947-5, CSA, EN, CE, UL, IEC LS Safety Interlock Switch, Actuator Actuator Included, Plastic, Interlock
  • RS Stock No. 272-7218
  • Mfr. Part No. 106780 LS-S02/F
Subtotal (1 unit)
HK$447.48
In Stock
Omron F3S-TGR-N_R Series Magnetic Non-Contact Safety Switch, Stainless Steel Housing, 24V dc, NO, 2 NC, 10 m Cable
  • RS Stock No. 820-3822
  • Mfr. Part No. F3S-TGR-NLMR-21-10
Subtotal (1 unit)
HK$2,419.20
In Stock
IDEM K-SS Safety Interlock Switch, Keyed Actuator Included, Stainless Steel, Interlock
  • RS Stock No. 826-3896
  • Mfr. Part No. 208001
Subtotal (1 unit)
HK$1,280.50
In Stock
Omron D4BS Safety Interlock Switch, Plastic, Key
  • RS Stock No. 214-7528
  • Mfr. Part No. D4BS-4AFS
Subtotal (1 unit)
HK$695.30
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