ST-1NO-1NC auxiliary contact with one normally open contact and one normally closed contact.
The ST-1NO-1NC allows one normally open contact and one normally closed contact to be added to the circuit.
The combination of NO and NC in a single module expands the configuration options for control and signalling circuits used with ST series contactors.
ST-2NO – two normally open contacts (2×NO). (ST-2NO)
ST-2NC –two normally closed contacts 2×NC. (ST-2NC)