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Charlotte Stonestreet
Managing Editor |
Overspeed switch
20 April 2015
To fulfil stringent safety regulations applying to plant and systems operated in heavy industry, Johannes Huebner Fabrik elektrischer Maschinen offers the EGS(H) 41 electronic overspeed switch, which operates independently of the closed-loop speed control system.
The EGS(H) 41 is certified up to Safety Integrity Level (SIL) 2 in accordance with the international standard IEC 61508 as well as up to Performance Level (PL) d to DIN EN ISO 13849. The EGS(H) 41 is said to be the only overspeed switch certified to this standard. Consequently, it provides the operator with the highest level of plant safety.
The safety device is equipped with two separate, electrically isolated and, as a consequence, complete switches to monitor speed that can be programmed independent of one another to monitor over- and under-speeds from 0.5rpm.
- SIL-CL3 absolute encoder
- Advances In Magnetic Encoders
- Designed to easily implement safety functions
- Modular MAG system
- Greater Flexibility In Heavy-Duty Applications
- Absolute encoder now more robust
- No Time Lost In Fault Rectification
- Incremental encoder
- No Bearings or Housing Needed
- Explosion protection
