Even redundant, secure emergency-stop chains are ineffective unless the contact block is accurately connected with the emergency-stop button. The self-monitoring contact blocks by Schlegel Elektrokontakt are the response to this danger that may occur e.g. as a result of a negligent assembly or a mechanical damage. In such a situation they ensure that the emergency signal is activated and the installation is switched off immediately. It can only be restarted after successful trouble-shooting.
The contact blocks are available with screw connections or Faston terminals and do have positive opening contacts acc.to IEC60947-5-1. They can be supplied with one or two channels and, if combined with the appropriate E-stop button, also in a foolproof version in compliance with
EN60947-5-5 and EN13850. The high-quality contact elements allow reliable switching even at low currents (5mA at 24V or less). They are available as conventional contact blocks as well as for AS-Interface application (Safety@Work).