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

2858 Products showing for Safety Interlock Switches & Components

1 of 143
In Stock
IDEM Actuator for Use with KP Safety Switch, KM Safety Switch, KLP Safety Switch, KLM Safety Switch
  • RS Stock No. 826-4050
  • Mfr. Part No. 140110
Subtotal (1 unit)
HK$177.00
HK$177.00/unit
Stocked by manufacturer
Omron D4NS Safety Rated Interlock Switch, Keyed, Plastic, Key
  • RS Stock No. 215-5054
  • Mfr. Part No. D4NS-1AF
Subtotal (1 unit)
HK$482.70
HK$482.70/unit
In Stock
Omron D4NS Series Solenoid Interlock Switch Power to Lock/Unlock
  • RS Stock No. 549-619
  • Mfr. Part No. D4NS-4CF
Subtotal (1 unit)
HK$525.80
HK$525.80/unit
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
HK$1,516.20/unit
In Stock
SICK IN4000 Series Inductive Non-Contact Safety Switch, Plastic Housing, 24V dc, 3 NO, M12
  • RS Stock No. 797-4898
  • Mfr. Part No. IN40-D0101K
Subtotal (1 unit)
HK$1,803.10
HK$1,803.10/unit
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
HK$765.90/unit
Temporarily out of stock
Pilz 502220 Series Magnetic Safety Switch, Polybutylene Terephthalate Housing, 24V dc, 1 NO/1 NC, M8
  • RS Stock No. 340-264
  • Mfr. Part No. 502220
Subtotal (1 unit)
HK$869.60
HK$869.60/unit
In Stock
Idec Actuator for Use with HS5 Interlock Switches
  • RS Stock No. 179-4764
  • Mfr. Part No. HS9Z-A52A
Subtotal (1 unit)
HK$93.20
HK$93.20/unit
Limited stock
Telemecanique Sensors XCS-LF Series Solenoid Interlock Switch, Power to Unlock
  • RS Stock No. 739-0606
  • Mfr. Part No. XCSLF3737312
Subtotal (1 unit)
HK$4,029.60
HK$4,029.60/unit
In Stock
SICK IME2S Series Inductive Non-Contact Safety Switch, Nickel Plated Brass Housing, 28.8V dc, 2 NO, M12
  • RS Stock No. 201-1898
  • Mfr. Part No. IME2S18-08B4DC0
Subtotal (1 unit)
HK$1,535.10
HK$1,535.10/unit
Stocked by manufacturer
Schmersal AZM 161 Series Solenoid Interlock Switch, Power to Lock
  • RS Stock No. 335-951
  • Mfr. Part No. AZM 161CC-12/03RKA-024
Subtotal (1 unit)
HK$3,760.20
HK$3,760.20/unit
In Stock
RS PRO RS Pro Series Magnetic Non-Contact Safety Switch, Stainless Steel Housing, 24V dc, 2 NO/1 NC, Wire
  • RS Stock No. 656-674
Subtotal (1 unit)
HK$3,621.64
HK$3,621.64/unit
In Stock
Omron F3S-TGR-N_R Series Magnetic Non-Contact Safety Switch, Plastic Housing, 24V dc, NO, 2 NC, 5 m Cable
  • RS Stock No. 757-9275
  • Mfr. Part No. F3S-TGR-NMPR-21-05
Subtotal (1 unit)
HK$1,264.00
HK$1,264.00/unit
In Stock
Schmersal AZ15 Safety Interlock Switch, Keyed, Fibreglass Reinforced Thermoplastic, Interlock
  • RS Stock No. 623-2972
  • Mfr. Part No. AZ15ZVRK-M20-2254
Subtotal (1 unit)
HK$383.30
HK$383.30/unit
In Stock
Schmersal BPS Series Actuator, Plastic Housing, Screw
  • RS Stock No. 198-7863
  • Mfr. Part No. BPS 33
Subtotal (1 unit)
HK$127.30
HK$127.30/unit
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
HK$1,282.50/unit
Stocked by manufacturer
Schmersal Safety Switch with Separate Actuator for Use with Very Small Actuating Radii
  • RS Stock No. 335-936
  • Mfr. Part No. AZ 17-11ZRI-ST B6L
Subtotal (1 unit)
HK$1,149.10
HK$1,149.10/unit
In Stock
SICK IME2S Series Inductive Non-Contact Safety Switch, Nickel Plated Brass Housing, 28.8V dc, 2 NO, M12
  • RS Stock No. 201-1890
  • Mfr. Part No. IME2S12-04N4DC0
Subtotal (1 unit)
HK$1,036.69
HK$1,036.69/unit
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
HK$889.80/unit
In Stock
IDEM GBN-1 Series Gate Bolt
  • RS Stock No. 123-7530
  • Mfr. Part No. 210007
Subtotal (1 unit)
HK$1,085.70
HK$1,085.70/unit
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