Over 800,000 products available

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

3369 Products showing for Safety Interlock Switches & Components

1 of 169
In Stock
Siemens 3SE5 Series Solenoid Interlock Switch, Power to Lock
  • RS Stock No. 763-6937
  • Mfr. Part No. 3SE5322-0SB21
Subtotal (1 unit)
£219.15(exc. VAT)
£219.15/unit
Stocked by manufacturer
Siemens 3SE5 Safety Switch, Metal
  • RS Stock No. 778-896
  • Mfr. Part No. 3SE5212-0LC05-1AJ0
Subtotal (1 unit)
£56.41(exc. VAT)
£56.41/unit
In Stock
Schmersal Actuator for Use with AZM 300 Safety Switch
  • RS Stock No. 880-1735
  • Mfr. Part No. AZ/AZM300-B1
Subtotal (1 unit)
£100.66(exc. VAT)
£100.66/unit
In Stock
Schmersal RSS 36 Series RFID Safety Switch, Fibreglass Reinforced Thermoplastic Housing, 26.4V dc, PNP, M12
  • RS Stock No. 880-1750
  • Mfr. Part No. RSS 36-I2-D-ST
Subtotal (1 unit)
£146.16(exc. VAT)
£146.16/unit
Limited stock
Telemecanique Sensors Actuator for Use with XCSTA Safety Switch, XCSTE Safety Switch, XCSPA Safety Switch
  • RS Stock No. 252-3870
  • Mfr. Part No. XCSZ11
Subtotal (1 unit)
£10.40(exc. VAT)
£10.40/unit
In Stock
Siemens 3SE5 Safety Interlock Switch, Keyed Actuator Included, Metal, Key
  • RS Stock No. 498-915
  • Mfr. Part No. 3SE5112-1QV10
Subtotal (1 unit)
£92.65(exc. VAT)
£92.65/unit
In Stock
Omron Actuator for Use with D4NS Safety Switch
  • RS Stock No. 549-514
  • Mfr. Part No. D4DS-K2
Subtotal (1 unit)
£2.31(exc. VAT)
£2.31/unit
Temporarily out of stock
Schmersal EX-BNS 120 Series Magnetic Non-Contact Safety Switch, Fibreglass Reinforced Thermoplastic Housing, 2, 5 m
  • RS Stock No. 284-0331
  • Mfr. Part No. EX-BNS120-02Z-3G/D-5M
Subtotal (1 unit)
£101.76(exc. VAT)
£101.76/unit
In Stock
Allen Bradley Guardmaster 440N Series Magnetic Non-Contact Safety Switch, Stainless Steel Housing, 24V dc, NC, 3 m Cable
  • RS Stock No. 311-1529
  • Mfr. Part No. 440N-G02112
Subtotal (1 unit)
£274.98(exc. VAT)
£274.98/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)
£362.20(exc. VAT)
£362.20/unit
In Stock
Omron F3S-TGR-N_C Series Magnetic Non-Contact Safety Switch, Polyester Housing, 24V dc, NO, 2 NC, 5 m Cable
  • RS Stock No. 757-9250
  • Mfr. Part No. F3S-TGR-NMPC-21-05
Subtotal (1 unit)
£106.25(exc. VAT)
£106.25/unit
Limited 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)
£32.30(exc. VAT)
£32.30/unit
In Stock
IDEM GBL Series Gate Bolt Lock
  • RS Stock No. 826-4069
  • Mfr. Part No. 210002
Subtotal (1 unit)
£116.82(exc. VAT)
£116.82/unit
In Stock
Allen Bradley Guardmaster Actuator for Use with TLS-GD2 Interlock Safety Switch
  • RS Stock No. 351-3997
  • Mfr. Part No. 440K-A11112
Subtotal (1 unit)
£7.53(exc. VAT)
£7.53/unit
Stocked by manufacturer
Siemens 3SE5 Safety Switch, Plastic
  • RS Stock No. 778-903
  • Mfr. Part No. 3SE5232-0CD10-1AJ0
Subtotal (1 unit)
£58.91(exc. VAT)
£58.91/unit
Currently unavailable
Omron Mounting Bracket for use with D4SL-N/D4SL-NSK10-LK Safety Switch
  • RS Stock No. 820-3800
  • Mfr. Part No. D4SLNK2
Subtotal (1 unit)
£8.27(exc. VAT)
£8.27/unit
In Stock
SICK IME2S Series Inductive Non-Contact Safety Switch, Nickel Plated Brass Housing, 28.8V dc, 2 NO, M12
  • RS Stock No. 201-1902
  • Mfr. Part No. IME2S12-04B4DC0
Subtotal (1 unit)
£95.07(exc. VAT)
£95.07/unit
Limited stock
Telemecanique Sensors XCSA Safety Interlock Switch, Keyed, Zinc Alloy, Interlock
  • RS Stock No. 263-3624
  • Mfr. Part No. XCSA702
Subtotal (1 unit)
£118.40(exc. VAT)
£118.40/unit
In Stock
Allen Bradley Guardmaster 440T Safety Interlock Switch, Keyed, Stainless Steel, Key
  • RS Stock No. 394-7558
  • Mfr. Part No. 440T-MRPSE100C
Subtotal (1 unit)
£215.55(exc. VAT)
£215.55/unit
Currently unavailable
Pilz ATEX 570 Safety Interlock Switch Actuator Included, Polybutylene Terephthalate
  • RS Stock No. 288-1899
  • Mfr. Part No. 570510
Subtotal (1 unit)
£469.64(exc. VAT)
£469.64/unit
1
2
3
169
Results per page

Guides & Articles

Machine Safety Guide
This guide covers everything from why machine safety is important and the regulations to the best products available.
Read more
Discover with DesignSpark
Your job to automate industry? Automation engineers and manufacturers alike are sharing on DesignSpark. Join them now.
Read More

Altivar Variable Speed Drives from Schneider Electric

Altivar Variable Speed Drives from Schneider Electric

Related links

Be the first to know about our latest products and offers

Email address

The personal information you provide to us when signing up to this mailing list will be processed in line with the Privacy Policy