Siemens 3TA6831 Control Relay

Siemens 3TA6831 Control Relay combines three normally open contacts and one normally closed contact with a 115 V AC coil, and is rated to switch up to 300 VAC at a 10 A load. The 3NO/1NC configuration enables multiple controlled paths from a single coil, while providing a dedicated NC contact for monitoring or signaling when the relay is energized or de-energized. This arrangement suits control panels, automated equipment, and sequencing tasks in industrial environments where discrete switching of several loads is required from one control signal. The 115 VAC coil aligns with common control circuitry and PLC outputs, facilitating integration with existing control logic without additional adapters. In practice, the three NO contacts can independently drive auxiliary relays, signaling devices, or actuators within the specified electrical limits, and the NC contact supports feedback or safety interlock applications. As a Siemens product, the 3TA6831 presents clear, verifiable contact ratings and voltage compatibility that help engineers dimension circuits accurately and reduce wiring complexity compared with using multiple single-contact relays.