ESG Electromechanical Safety gear



Wittur ESG is a breakthrough safety system solution for new elevator installations.

Its reliable braking element is combined with the latest SIL3 position and speed detection and electromechanical gear activation: overspeed governor, tension device and rope loop are no longer needed, and more shaft space can be used for the car.

Advanced self-monitoring routines and automatic setup with shaft dimensions determination ensure a fast and easy installation and a reliable fail-safe system. Safety electronics also combine additional functions: UCM detection, absolute shaft encoder, door zone switch, shaft end switches. A backup battery is supplied in the electronic interface box to ensure operation also in case of power loss.


  • Fast and easy installation
  • Shaft efficiency: more space for car
  • Cost savings due to less components into the shaft: no Overspeed Governor no Tension Device no Governor Rope loop
  • Maintenance cost savings due to absence of overspeed governor, rope and tension weight
  • Safety electronics also combine additional functions UCM detection Absolute shaft position Door zone switch Shaft end switches
  • Compliant with EN 81-20/50
  • ESG stopping and holding element compliant with EN 81-21 (reduced pit and headroom)

Can't find what you're looking for?

We can offer customized solutions for your specific needs.

Wittur has updated its privacy policy according to GDPR. By continuing to browse the site, you are agreeing to our privacy policy.