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Relays with forcibly guided contacts

These electromechanical relays are equipped with a special set of contacts in accordance with IEC 61810-3. The NO and NC contacts are linked so that contra-functional contacts must not be closed simultaneously even in a disturbed state (opening failure). This is of importance in controls of functional safety.

ELESTA relays

Optical Encoder

Optical encoder systems that work according to passing light or reflected light method, use use a code disk to interrupt the path of the beam between the light source and light sensor periodically. The light sensor converts the incident light pulses into electrical signals. Applications are the speed detection of rotating systems or the position or angle detection of positionally variable systems.

ELESTA sensors