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 Actuator Type Range Sensor Principle Switching Distance Terminal Type Series IP Rating Supply Current
RS Stock No. 826-4319
Mfr. Part No.903101
BrandIDEM
SGD458.54
Each
units
250 V ac/dc 2NC 316 Stainless Steel NO 5m cable Rectangular Magnetic - Magnetic 10 (Close) mm, 22 (Open) mm Pre-Wired CM3-Ex IP67 200 (Auxiliary Channel) mA, 600 (Safety Channels) mA
RS Stock No. 797-4857
Mfr. Part No.RE11-SAC
BrandSick
SGD72.80
Each
units
30 V dc NC Plastic NO M8 Rectangular Magnetic - Magnetic 3 (On) mm, 12 (Off) mm 4-Pin M8 Connector RE11 IP67 400 mA
RS Stock No. 619-2818
Mfr. Part No.504220
BrandPilz
SGD115.66
Each
units
24 V dc 2NO Plastic - M8 Square Magnetic PSENmag Magnetic 8 mm, 12 mm - - IP67 -
RS Stock No. 422-5118
Mfr. Part No.XCSDMC5902
SGD168.25
Each
units
24 V dc NC Plastic NO - Coded Magnetic Switch Coded Preventa Magnetic 5 mm Cable XCS-DMC IP66, IP67 -
RS Stock No. 766-1674
Mfr. Part No.XCSDMP790L01M12
SGD170.46
Each
units
24 V dc - Plastic - - - Coded Preventa Magnetic 8 mm - XCS-DMP IP67 -
RS Stock No. 826-4312
Mfr. Part No.903102
BrandIDEM
SGD508.73
Each
units
250 V ac/dc 2NC 316 Stainless Steel NO 10m cable Rectangular Magnetic - Magnetic 10 (Close) mm, 22 (Open) mm Pre-Wired CM3-Ex IP67 200 (Auxiliary Channel) mA, 600 (Safety Channels) mA
RS Stock No. 528-0790
Mfr. Part No.3SE6704-1BA
BrandSiemens
SGD58.76
Each
units
- - - - - - Magnet - - - - - - -
RS Stock No. 198-7863
Mfr. Part No.BPS 33
BrandSchmersal
SGD14.58
Each
units
- - - - - - Magnetic - - - - - - -
RS Stock No. 617-5374
Mfr. Part No.BPS 260-1
BrandSchmersal
SGD15.32
Each
units
- - - - - - Standard - - - - - - -
RS Stock No. 797-4898
Mfr. Part No.IN40-D0101K
BrandSick
SGD224.00
Each
units
24 V dc 3NO Plastic - M12 Cuboid Magnetic - Inductive 15 (On) mm, 30 (Off) mm 4-Pin M12 Connector IN4000 IP67 -
RS Stock No. 198-712
Mfr. Part No.XCSZC1
SGD73.14
Each
units
- - - - - - Coded - - - - - - -
RS Stock No. 766-1693
Mfr. Part No.XCSDMR7912
SGD205.65
Each
units
24 V dc - Plastic - - Magnetic Proximity Coded Preventa Magnetic 8 mm - XCS-DMR IP66, IP67 -
RS Stock No. 746-7182
Mfr. Part No.D40A-1C2
BrandOmron
SGD175.49
Each
units
24 V dc - Plastic - Cable - Coded - Magnetic 15 mm - D40A IP67 -
RS Stock No. 824-4918
Mfr. Part No.506406
BrandPilz
SGD111.17
Each
units
24 V dc 1NC/1NO Plastic - M8 Square Magnetic PSENmag Magnetic 3 mm PCB Pin - IP67 -
RS Stock No. 623-2944
Mfr. Part No.BPS 300
BrandSchmersal
SGD13.77
Each
units
- - - - - - Magnetic - - - - - - -
RS Stock No. 623-3127
Mfr. Part No.BNS 33-02Z-2187-3M
BrandSchmersal
SGD75.15
Each
units
100 V ac/dc - Plastic - Cable - Coded - Magnetic - - BNS33 IP67 -
RS Stock No. 617-5368
Mfr. Part No.BNS-B20-B01
BrandSchmersal
SGD87.79
Each
units
- - - - - - Magnetic - - - - - - -
RS Stock No. 619-2824
Mfr. Part No.504223
BrandPilz
SGD148.53
Each
units
24 V dc 2NO Plastic - M8 - Magnetic - Magnetic 8 mm - PSENmag IP65, IP67 -
RS Stock No. 880-1889
Mfr. Part No.RSS16-D-R-ST8H
BrandSchmersal
SGD291.45
Each
units
20.4 → 26.4 V dc - Glass Fibre Reinforced Thermoplastic, Plastic - - - Coded - - - - RSS 16 IP65, IP66, IP67 -
RS Stock No. 666-4966
Mfr. Part No.XCSDMC79010EX
SGD248.92
Each
units
24 V dc NC Plastic NO - Coded Magnetic Switch Coded Preventa Magnetic 5 mm - XCS-DMC IP66, IP67 -