OVERSPEED CONTACT OVERSPEED GOVERNORS
The overspeed governors supplied by Gervall, regardless of the model, have an overspeed electrical contact that, following the applicable regulations, acts at latest at the same speed as the mechanical activation of the overspeed governor (depending on the nominal speed of the elevator).

Regardless of whether the overspeed governor is bidirectional or with mechanical interlock only in descent, the contact acts in both directions of rotation, in ascending and descending.
Said activation, with the opening of the NC contact, will give the necessary signal to act on the controller of the installation, cutting off the series of safeguards to be able to order the machine to stop.
The points fulfilled in regulation EN81-20 are 5.6.2.2.1.6 and in EN81-50, point 5.4.2.2.1.
Furthermore, in the GV120, GV200 and GV300 models there is the possibility of supplying an independent NC contact for each of the directions of activation of the overspeed governor.
Consult our Commercial Department for any additional information you require.
Publicado el
28-01-2025
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