Siemens 6ES71941KA010XA0 Connector. SIMATIC Y-Connector, For Use With: ET 200 Series Distributed I/O Module. Additional Description: SIEM-6ES71941KA010XA0 CONNECTOR Y DBL WIRING ET200X 5-PIN M12. Catalog Description: SIMATIC dp, y connector for distributed i/o et 200 for the double wiring of i/owith one cable to et 200 5-pin m12.