FA111694
28 September 2021
Issue:What does force guided contacts mean for Contactors and Relays ?
Product Line:Contactors & Relays
Cause:Definition needed
Resolution:Linked contacts are contacts which are mechanically linked in such a way as to ensure that the normally closed and normally open contacts can never be closed at the same time.
Mechanical guiding (
forced guiding) makes it impossible to close the normally closed and normally open contact simultaneously. If a normally closed contact becomes welded, it must be impossible for the normally open contacts to close when the coil is energized.
If a normally open contact becomes welded, it must be impossible for the normally closed contacts to close when the coil is de-energized. Also known as: forced contacts, positively activated contacts, guided contacts, and linked contacts.
This Forced guided contact feature is primarily required for Safety circuits and redundant control systems.
