Non Contact Safety Switches

Non-contact safety switches are a type of safety switch that operates without the use of conductive contacts to complete or break the circuit. Instead, they utilise a magnet, transponder or inductor to detect when the power to a machine needs to be cut. They can be used in machine-guarding applications to prevent injury to personnel in hazardous areas.

What are the advantages of non-contact safety switches?

Non-contact safety switches can be preferable because they are very long lasting and require minimal maintenance They are also resistant to shock and vibrations, as well as being relatively tamper-proof.

Types of non-contact safety switches

Non-contact safety switches may operate using different methods, including by magnet, transponder or inductor. They can also differ in terms of their terminal type, connection type, and crucially, the distance at which the switch will be operated. This determines the level of sensitivity the switch has, and how quickly it will activate when it detects that power needs to be cut.


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Description Price Supply Voltage Safety Contacts Housing Material Auxiliary Contacts Connection Type Switch Type Interface Range Terminal Type Series Switching Distance IP Rating Supply Current Actuator Included
RS Stock No. 873-2250
Mfr. Part No.440N-G02075
£122.00
Each
Units
24 V dc NC ABS Plastic - 4m cable Rectangular - Ferrogard - 440N 12 (Make) mm, 12 (Safety) mm, 15 (Auxiliary) mm, 15 (Make) mm, 23 (Break) mm, 23 (Safety) mm, 26 (Auxiliary) mm, 26 (Break) mm IP67 1 A Yes
RS Stock No. 623-3199
Mfr. Part No.BNS 33-02Z-ST-2187
BrandSchmersal
£50.36
Each
Units
60 V ac/dc - Plastic - M8 - - - - BNS33 - IP67 - No
RS Stock No. 296-3161
Mfr. Part No.440N-G02095
£130.00
Each
Units
250 V ac NC Plastic - 4-Pin Micro QD - - Ferrogard - 440N - IP67 - Yes
RS Stock No. 215-801
Mfr. Part No.440N-Z21S16B
£98.10
Each
Units
24 V dc - Plastic - - - - Sensaguard Cable 440N - IP69K - Yes
RS Stock No. 617-5150
Mfr. Part No.BNS 33S-12Z
BrandSchmersal
£75.95
Each
Units
100 V ac/dc - Stainless Steel - - Safety - - Cable BNS33 8 mm, 18 mm IP69K - No
RS Stock No. 623-3177
Mfr. Part No.BNS 33-12ZG-2187-2M
BrandSchmersal
£47.17
Each
Units
24 V dc - Plastic - Cable Safety - - - BNS33 5 mm, 15 mm IP67 - No
RS Stock No. 698-8757
Mfr. Part No.EX-BNS250-12Z-2187-3G/D-5M
BrandSchmersal
£111.29
Each
Units
24 V dc - Plastic - - - - - Cable BNS250 - IP67 - No
RS Stock No. 617-5201
Mfr. Part No.BNS 260-11/01ZG-ST-L
BrandSchmersal
£72.65
Each
Units
24 V dc - Plastic - M8 Safety - - - BNS260 5 mm, 15 mm IP67 - No
RS Stock No. 428-259
Mfr. Part No.440N-Z21SS2HN9
£116.00
Each
Units
24 V dc - Plastic - - - Guardlink Sensaguard Cable 440N - IP69K - Yes
RS Stock No. 351-3931
Mfr. Part No.440N-G02118
£193.00
Each
Units
24 V dc NC Stainless Steel NO 3m cable - - Ferrogard - 440N - IP68 - Yes
RS Stock No. 481-8243
Mfr. Part No.XCSDMC5905
£66.00
Each
Units
24 V dc - Plastic - - Safety - Preventa Cable XCS-DMC 5 mm, 15 mm IP66, IP67 - Yes
RS Stock No. 766-1633
Mfr. Part No.XCSDMC7905
£66.00
Each
Units
- - - - - Magnetic Proximity - - - - - - - -
RS Stock No. 215-750
Mfr. Part No.440N-Z21S17A
£134.00
Each
Units
24 V dc - Plastic - - - - Sensaguard - 440N - IP69K - Yes
RS Stock No. 766-1696
Mfr. Part No.XCSDMR7902
£60.00
Each
Units
- - - - - Magnetic Proximity - - - - - - - -
RS Stock No. 759-229
Mfr. Part No.440N-H02047
£450.00
Each
Units
250 V ac NC Stainless Steel - - - - Ferrogard - 440N - IP68 - Yes
RS Stock No. 666-4975
Mfr. Part No.XCSDMC7902EX
£97.00
Each
Units
24 V dc 2NC Plastic - - - - Preventa Cable XCS-DMC - IP66, IP67 - Yes
RS Stock No. 880-1741
Mfr. Part No.RSS 36-D-ST
BrandSchmersal
£135.65
Each
Units
20.4 → 26.4 V dc - Glass Fibre Reinforced Thermoplastic, Plastic - M12 Rectangular - - 8-Pin M12 Connector RSS 36 12 mm, 10 (On) mm, 16 (Off) mm IP65, IP67, IP69K 600 mA No
RS Stock No. 797-4857
Mfr. Part No.RE11-SAC
BrandSick
£40.33
Each
Units
30 V dc NC Plastic NO M8 Rectangular - - 4-Pin M8 Connector RE11 12 (Off) mm, 3 (On) mm IP67 400 mA Yes
RS Stock No. 428-243
Mfr. Part No.440N-Z21SS2AN
£98.00
Each
Units
24 V dc - Plastic - - - - Sensaguard Cable 440N - IP69K - Yes
RS Stock No. 617-5166
Mfr. Part No.BNS 303-11ZG 2,0M
BrandSchmersal
£52.50
Each
Units
24 V dc - Plastic - - - - - Cable BNS303 - IP67 - No
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