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

2450 Products showing for Safety Interlock Switches & Components

1 of 123
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)
SGD862.37(exc. GST)
In Stock
Schmersal AZM 190 Series Solenoid Interlock Switch, Power to Unlock
  • RS Stock No. 362-2596
  • Mfr. Part No. AZM190-02/10RK-24VDC
Subtotal (1 unit)
SGD556.05(exc. GST)
In Stock
Schmersal Actuator for Use with AZM 190/TZK Safety Switch
  • RS Stock No. 362-2653
  • Mfr. Part No. AZM190-B3/2X15
Subtotal (1 unit)
SGD57.30(exc. GST)
In Stock
SMC Bracket for use with Pressure Vacuum Switches
  • RS Stock No. 847-7048
  • Mfr. Part No. ZS-38-A1
Subtotal (1 unit)
SGD11.86(exc. GST)
In Stock
Telemecanique Sensors XCS-DMP Series Magnetic Non-Contact Safety Switch, Plastic Housing, 100V dc, 2 NC, 2 m Cable
  • RS Stock No. 766-1665
  • Mfr. Part No. XCSDMP7902
Subtotal (1 unit)
SGD278.63(exc. GST)
In Stock
IDEM SMR Series Magnetic Non-Contact Safety Switch, 316 Stainless Steel Housing, 24V dc, 2 NC, 2 m Cable
  • RS Stock No. 826-4296
  • Mfr. Part No. 139013
Subtotal (1 unit)
SGD383.42(exc. GST)
Limited stock
Telemecanique Sensors Magnetic Non-Contact Safety Switch, Thermoplastic Housing, 24V dc, 1 NC, 1 NO, Screw
  • RS Stock No. 198-712
  • Mfr. Part No. XCSZC1
Subtotal (1 unit)
SGD47.10(exc. GST)
In Stock
Schmersal Actuator for Use with AZM 161 Safety Switch
  • RS Stock No. 362-2732
  • Mfr. Part No. AZM 161-B1
Subtotal (1 unit)
SGD31.70(exc. GST)
In Stock
RS PRO MS21 Series Magnetic Non-Contact Safety Switch, Stainless Steel Housing, 24V dc, 2 NO/1 NC, Wire
  • RS Stock No. 656-655
Subtotal (1 unit)
SGD639.06(exc. GST)
In Stock
Schmersal RSS 36 Series RFID Non-Contact Safety Switch, Fibreglass Reinforced Thermoplastic Housing, 26.4V dc, 2 PNP,
  • RS Stock No. 880-1741
  • Mfr. Part No. RSS 36-D-ST
Subtotal (1 unit)
SGD275.66(exc. GST)
In Stock
Omron Actuator for Use with D4NS Safety Switch
  • RS Stock No. 549-514
  • Mfr. Part No. D4DS-K2
Subtotal (1 unit)
SGD10.41(exc. GST)
In Stock
Omron Actuator for Use with D4NS Safety Switch
  • RS Stock No. 549-518
  • Mfr. Part No. D4DS-K1
Subtotal (1 unit)
SGD11.33(exc. GST)
In Stock
Telemecanique Sensors XCS-DMC Series Magnetic Non-Contact Safety Switch, Plastic Housing, 100V dc, NC, Cable
  • RS Stock No. 422-5118
  • Mfr. Part No. XCSDMC5902
Subtotal (1 unit)
SGD94.46(exc. GST)
In Stock
Omron D4NS Safety Rated Interlock Switch, Keyed, Plastic, Key
  • RS Stock No. 215-5054
  • Mfr. Part No. D4NS-1AF
Subtotal (1 unit)
SGD96.82(exc. GST)
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)
SGD35.80(exc. GST)
In Stock
Omron D4NL Solenoid Interlock Switch Safety Interlock Switch, Plastic
  • RS Stock No. 214-7545
  • Mfr. Part No. D4NL-1DFA-BS
Subtotal (1 unit)
SGD351.36(exc. GST)
Stocked by manufacturer
Schmersal AZM 170 Series Solenoid Interlock Switch, Power to Lock
  • RS Stock No. 335-990
  • Mfr. Part No. AZM 170-02ZRKA 110VAC
Subtotal (1 unit)
SGD657.58(exc. GST)
In Stock
Schmersal BNS260 Series Magnetic Non-Contact Safety Switch, Plastic Housing, 75V dc, 2 NC, M8
  • RS Stock No. 617-5239
  • Mfr. Part No. BNS 260-02/01ZG-ST-R
Subtotal (1 unit)
SGD124.16(exc. GST)
In Stock
ABB Jokab DYN Series Electronic Detection Non-Contact Safety Switch, Polybutylene Terephthalate Housing, 24V dc, M12
  • RS Stock No. 176-0019
  • Mfr. Part No. 2TLA020051R5100 Adam DYN-Info M12-5
Subtotal (1 unit)
SGD157.48(exc. GST)
In Stock
Schmersal AZM 161 Series Solenoid Interlock Switch, Power to Lock
  • RS Stock No. 617-5087
  • Mfr. Part No. AZM 161SK-12/12RKA-024
Subtotal (1 unit)
SGD409.40(exc. GST)
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