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

3383 Products showing for Safety Interlock Switches & Components

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1 of 170
In Stock
Allen Bradley Guardmaster 440N Series Magnetic Non-Contact Safety Switch, Plastic Housing, 300V dc, NC, 3 m Cable
  • RS Stock No. 335-5763
  • Mfr. Part No. 440N-S32023
Subtotal (1 unit)
€106.10(exc. VAT)
€106.10/unit
In Stock
Allen Bradley Guardmaster Actuator for Use with TLS-GD2 Interlock Safety Switch
  • RS Stock No. 351-3874
  • Mfr. Part No. 440G-A27011
Subtotal (1 unit)
€13.03(exc. VAT)
€13.03/unit
In Stock
Bernstein AG TK-42-CD Series Magnetic Non-Contact Safety Switch, Polyamide 6 Housing, Screw
  • RS Stock No. 210-1922
  • Mfr. Part No. 6402042310
Subtotal (1 unit)
€12.98(exc. VAT)
€12.98/unit
In Stock
Schmersal BNS303 Series Magnetic Non-Contact Safety Switch, Plastic Housing, 24V dc, 2, Cable
  • RS Stock No. 617-5194
  • Mfr. Part No. BNS 303-12ZG 2,0M
Subtotal (1 unit)
€100.03(exc. VAT)
€100.03/unit
In Stock
Schmersal BPS Series Actuator, Plastic Housing, Screw
  • RS Stock No. 198-7863
  • Mfr. Part No. BPS 33
Subtotal (1 unit)
€14.40(exc. VAT)
€14.40/unit
In Stock
Schmersal AZM 161 Series Solenoid Interlock Switch, Power to Unlock
  • RS Stock No. 617-5065
  • Mfr. Part No. AZM 161SK-12/12RK-024
Subtotal (1 unit)
€349.99(exc. VAT)
€349.99/unit
In Stock
Allen Bradley Guardmaster 440T Safety Interlock Switch, Keyed, Stainless Steel, Interlock
  • RS Stock No. 394-7508
  • Mfr. Part No. 440T-MRKSE110A
Subtotal (1 unit)
€403.50(exc. VAT)
€403.50/unit
Stocked by manufacturer
Schmersal Safety Switch with Separate Actuator for Use with Very Small Actuating Radii
  • RS Stock No. 335-979
  • Mfr. Part No. AZ 17-11ZI B6R
Subtotal (1 unit)
€121.36(exc. VAT)
€121.36/unit
Stocked by manufacturer
Schmersal BNS 36 Series Magnetic Safety Switch, Fibreglass Reinforced Thermoplastic Housing, 75V dc, NC, NO, 1 m Cable
  • RS Stock No. 336-143
  • Mfr. Part No. BNS 36-11Z-R
Subtotal (1 unit)
€59.60(exc. VAT)
€59.60/unit
In Stock
Schmersal AZ17 Safety Switch, Actuator, Fibreglass Reinforced Thermoplastic
  • RS Stock No. 335-942
  • Mfr. Part No. AZ17-02ZK-ST
Subtotal (1 unit)
€97.32(exc. VAT)
€97.32/unit
Stocked by manufacturer
Schmersal AZM 150 Series Solenoid Interlock Switch, Power to Unlock
  • RS Stock No. 336-052
  • Mfr. Part No. AZM150SK-11/02RT-024
Subtotal (1 unit)
€272.96(exc. VAT)
€272.96/unit
Stocked by manufacturer
Schmersal BNS 36 Series Magnetic Safety Switch, Fibreglass Reinforced Thermoplastic Housing, 2 NC, 5 m Cable
  • RS Stock No. 336-139
  • Mfr. Part No. BNS36-02ZG-R-5M
Subtotal (1 unit)
€96.46(exc. VAT)
€96.46/unit
Stocked by manufacturer
Schmersal AZM 161 Series Solenoid Interlock Switch, Power to Unlock
  • RS Stock No. 335-976
  • Mfr. Part No. AZM 161SK-12/12RKTU -110/230
Subtotal (1 unit)
€381.35(exc. VAT)
€381.35/unit
Stocked by manufacturer
Schmersal AZM 190 Series Solenoid Interlock Switch, Power to Unlock
  • RS Stock No. 335-994
  • Mfr. Part No. AZM190-02/01RK-48VAC
Subtotal (1 unit)
€323.17(exc. VAT)
€323.17/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)
€349.99(exc. VAT)
€349.99/unit
Stocked by manufacturer
Schmersal BNS 36 Series Magnetic Safety Switch, Fibreglass Reinforced Thermoplastic Housing, 24V dc, NO, 2 NC, 1 m Cable
  • RS Stock No. 336-120
  • Mfr. Part No. BNS 36-11/01ZG-R
Subtotal (1 unit)
€84.28(exc. VAT)
€84.28/unit
Stocked by manufacturer
Schmersal AZ16 Safety Switch, Actuator Actuator Included, Fibreglass Reinforced Thermoplastic
  • RS Stock No. 335-969
  • Mfr. Part No. AZ16-03ZVRK-M16-2254
Subtotal (1 unit)
€68.44(exc. VAT)
€68.44/unit
Temporarily out of stock
Schmersal AZM 170 Series Solenoid Interlock Switch, Power to Unlock
  • RS Stock No. 336-096
  • Mfr. Part No. AZM 170-02ZRK-ST-2197 24VAC/DC
Subtotal (1 unit)
€441.98(exc. VAT)
€441.98/unit
In Stock
Siemens 3SE5 Series Solenoid Interlock Switch, Power to Unlock
  • RS Stock No. 498-959
  • Mfr. Part No. 3SE5322-0SD21
Subtotal (1 unit)
€258.38(exc. VAT)
€258.38/unit
Stocked by manufacturer
Schmersal AZM 161 Series Solenoid Interlock Switch, Power to Lock Actuator Included
  • RS Stock No. 335-623
  • Mfr. Part No. AZM 161SK-12/12RIA-024 -B6L
Subtotal (1 unit)
€390.73(exc. VAT)
€390.73/unit
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