• Protocontrol Instruments (India) Private Limited

Over-Speed Safety Switch

Over-speed safety switch Series: ESM, is designed for detection of over speed and actuates relay contact at desired over speed limit. These switches find application in downhill conveyors and cranes and heavy-duty motors. The over-speed monitor, which uses non-contact sensor like Inductive, Capacitive, Magnetic or Optical proximity switch to sense the speed and actuates a relay at preset speed. Using contacts of this relay desired control action such as over speed protection can be achieved. The O/P is in the form of 2C/O relay contacts. Speed range is from 1-6000 RPM using Inductive Proximity Switch as a sensor and 500-5000 RPM using Magnetic or Optical sensor can be covered in six ranges.
The enclosure for monitoring unit is panel-mounting type IP 30. A special sturdy cast Al enclosure suitable to IP 65 Grade can be provided when the unit is required to be field mounted. Supply voltage to the control unit is 240 V AC, or as per requirement. Versions substitute to imported one are also available.