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 Range Terminal Type Series Switching Distance IP Rating Supply Current Actuator Included Actuator Type
RS Stock No. 623-3127
Mfr. Part No.BNS 33-02Z-2187-3M
BrandSchmersal
SGD70.59
Each
units
100 V ac/dc - Plastic - Cable - - - BNS33 - IP67 - No Coded
RS Stock No. 880-1889
Mfr. Part No.RSS16-D-R-ST8H
BrandSchmersal
SGD277.85
Each
units
20.4 → 26.4 V dc - Glass Fibre Reinforced Thermoplastic, Plastic - - - - - RSS 16 - IP65, IP66, IP67 - No Coded
RS Stock No. 617-5223
Mfr. Part No.BNS 260-02/01ZG-ST-L
BrandSchmersal
SGD124.60
Each
units
24 V dc - Plastic - M8 Safety - - BNS260 5 mm, 15 mm IP67 - No Coded
RS Stock No. 698-8757
Mfr. Part No.EX-BNS250-12Z-2187-3G/D-5M
BrandSchmersal
SGD226.35
Each
units
24 V dc - Plastic - - - - Cable BNS250 - IP67 - No Coded
RS Stock No. 623-3133
Mfr. Part No.BNS 33-11ZG-2M
BrandSchmersal
SGD71.69
Each
units
24 V dc - Plastic - Cable - - - BNS33 - IP67 - No Coded
RS Stock No. 623-3199
Mfr. Part No.BNS 33-02Z-ST-2187
BrandSchmersal
SGD102.43
Each
units
60 V ac/dc - Plastic - M8 - - - BNS33 - IP67 - No Coded
RS Stock No. 880-1823
Mfr. Part No.EX-BNS40S-12Z-C
BrandSchmersal
SGD350.46
Each
units
24 V ac/dc - Stainless Steel - 1m cable Rectangular - Cable EX-BNS40S 8 (On) mm, 18 (Off) mm IP65, IP67 Maximum of 250 mA No Coded
RS Stock No. 623-3155
Mfr. Part No.BNS 33-11Z-ST
BrandSchmersal
SGD58.74
Each
units
100 V ac/dc - Plastic - M8 - - - BNS33 - IP67 - No Coded
RS Stock No. 623-3149
Mfr. Part No.BNS 33-11Z-2M
BrandSchmersal
SGD56.86
Each
units
100 V ac/dc - Plastic - Cable - - - BNS33 - IP67 - No Coded
RS Stock No. 625-0352
Mfr. Part No.BNS 33-12Z-2187-2M
BrandSchmersal
SGD97.47
Each
units
120 V ac/dc - Plastic - Cable - - - BNS33 - IP67 - No Coded
RS Stock No. 617-5273
Mfr. Part No.BNS16 12ZV
BrandSchmersal
SGD109.32
Each
units
100 V ac/dc - Plastic - - Safety - 8-Pin M12 Connector BNS16 8 mm, 18 mm IP67 - No Coded
RS Stock No. 698-8763
Mfr. Part No.EX-BNS 33-12ZG-2187-3G/D-5M
BrandSchmersal
SGD150.69
Each
units
24 V dc, 100 V ac/dc - Plastic - - - - Cable BNS33 - IP67 - No Coded
RS Stock No. 617-5150
Mfr. Part No.BNS 33S-12Z
BrandSchmersal
SGD154.47
Each
units
100 V ac/dc - Stainless Steel - - Safety - Cable BNS33 8 mm, 18 mm IP69K - No Coded
RS Stock No. 880-1814
Mfr. Part No.EX-BNS40S-12ZG-C
BrandSchmersal
SGD372.34
Each
units
24 V ac/dc - Stainless Steel - 1m cable Rectangular - Cable EX-BNS40S 8 (On) mm, 18 (Off) mm IP65, IP67 Maximum of 10 mA No Coded
RS Stock No. 617-5302
Mfr. Part No.BNS-B20-12zG-ST-R
BrandSchmersal
SGD145.89
Each
units
24 V dc - Plastic - M12 - - - BNSB20 - IP67 - No Coded
RS Stock No. 623-3183
Mfr. Part No.BNS 300-01ZG-2M
BrandSchmersal
SGD179.98
Each
units
24 V dc - Plastic - - - - Cable BNS300 - IP67 - No Coded
RS Stock No. 880-1753
Mfr. Part No.RSS 36-I2-D-R-ST
BrandSchmersal
SGD366.81
Each
units
20.4 → 26.4 V dc - Glass Fibre Reinforced Thermoplastic, Plastic - M12 Rectangular - 8-Pin M12 Connector RSS 36 10 (On) mm, 12 mm, 16 (Off) mm IP65, IP67, IP69K 600 mA No Unique Coded
RS Stock No. 617-5172
Mfr. Part No.BNS 303-11ZG-ST
BrandSchmersal
SGD101.59
Each
units
24 V dc - Plastic - - - - 4-Pin M12 Connector BNS303 - IP67 - No Coded
RS Stock No. 617-5289
Mfr. Part No.BNS 16-12ZD
BrandSchmersal
SGD119.88
Each
units
100 V ac/dc - Plastic - - Safety - M20 gland BNS16 5 mm, 18 mm IP67 - No Coded
RS Stock No. 880-1832
Mfr. Part No.RSS260-SD-ST
BrandSchmersal
SGD194.01
Each
units
20.4 → 26.4 V dc - Glass Fibre Reinforced Thermoplastic, Plastic - - - - - RSS 260 - IP65, IP66, IP67 - No Coded