Siemens 6EC1110-3A is a SIMATIC C1 module packaged as a potting-block timer with a single timing element, spanning 3 milliseconds to 250 seconds. Documentation in Siemens' historic ST11 catalogs and related literature identifies 6EC1110-3A within the SIMATIC C1 family. Modern retailers list the 6EC1110-3A as a SIMATIC C1 timer module, confirming its identity in the C1 lineup.
