This product data sheet was originally written in Spanish. It has been automatically translated for your convenience. Reasonable efforts have been made to produce a precise translation; however, no automatic translation is perfect, nor it is intended to replace a human translator. The original product sheet in Spanish is available at Interruptor de seguridad para ascensores
Switch of hygiene for elevators
Schmersal Has developed the switch of hygiene ZSM 241 with enclavamiento apt, for example, for the unemployment of electrical emergency of the system of traction of an elevator in case of excess of speed.
This application of the ZSM 241 does recommended a system of remote release, since the systems of traction and, with them, also the limiters of speed install increasingly directly in the gap, in place of separately in a room of machines. Of this form, the direct access to the limitador results impossible. If it installs the switch of hygiene ZSM 241, this can free simply through a pulsador situated in the signpost of control, with what avoid risks for the operarios and the service of the elevator reestablishes before.
Another application of the ZSM 241 can be the control of the unblock of emergency by triangular key in the door of ship of the inferior flat, to end to avoid that an operario can remain shut inside the pozo: When unblocking the door of the first flat, the switch changes and, although the door close , the elevator can not set up until the operario have freed the ZSM 241 by means of a key of external reset. The precarrera of manoeuvre extremely short of the ZSM 241 ensures that active with the maximum reliability to the accionar the unblock manual.
The measures in work, so much of the ZSM 241 as of the ZS 231, fulfil the norm IEC 60947, by what the replacement of a ZS 231 or the installation in an existent elevator does not present greater problems. Besides, the supply of the switch with all the cables of connection ensures an easy and fast setting. In summary, the ZSM 241 presented by Schmersal constitutes a device of special manoeuvre for elevators, perfectly adapted to the exigencias practical and that contributes to the increase of the hygiene in the operation and maintenance of elevators.