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.
Description:
A miniature hinge operated safety interlock switch with
2 sets of contacts and a full IP67 ingress rating. Particularly useful for light duty hinged guard doors, covers or flaps. Cam may be adjusted in-situ to assist in accurate installation and minimise nuisance trippingMiniature case (75mm x 25mm)Rotateable head facilitates; 4 ...
Description:
A compact hinge operated safety interlock switch with
the option of 2 safety contactsFull IP67 ingress protection on all modelsRotateable head facilities 4 possible shaft positionsOnly 3° of guard movement required to operate2N/C, 1N/O or 3N/C controls hollow shaftForced guided contacts - complies with EN 1088, IEC 947-5-1.
Description:
The Schneider XCS-DMR coded magnetic safety switches are
designed for monitoring the doors, covers and guards of industrial machines with imprecise guiding and low inertia. These safety switches are ideally suited for machines subjected to frequent washing or liquid spray. They protect the operator by immediately stopping any dangerous movement ...
Description:
Smallest switch available for safety applications3 different switch
functionsAll N/C contacts force separated (symbol representation arrow in circle)Two-channel safety monitoring possibleGalvanic isolation of contact bridges, shape Zb2 mm contact gap for creeping systems in accordance with EN 81-1 for lift applications2 mounting positionsProtection rating IP30Loss-proof snap lid.
