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The WSR (Wheel Sensor Relay) and WSS (Wheel Sensor Single) Wheel Detectors are electronic switches which respond contactlessly to wheel flanges.
The WSR Wheel Detector replaces mechanical or magnetic track-installed switching devices such as the S44, MK and WSSB-Impulsgeber without any modification to the cabling or existing evaluation equipment with a nominal operating voltage of 18 V to 60 V DC or 24 V to 60 V AC.
The WSS Wheel Detector replaces the RSE Wheel Sensor without any modification to the cabling or existing evaluation unit.
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