Siemens 3RA1921-1B Link Module for 3RV1/3RT1 Contactors

The Siemens 3RA1921-1B is an electrical and mechanical link module designed for use with Siemens 3RV1.2 and 3RT1.2 contactors, specifically for DC operation. This module facilitates the combined operation of the contactor and overload relay, ensuring coordinated functionality. It is noted as a phased-out product with a preferred successor being the 3RA2921-1B.

This linking module is essential for creating complete motor starter assemblies when paired with compatible Siemens contactors and overload relays. It ensures reliable electrical connections and mechanical interlocking required for safe and efficient motor control applications in industrial settings.

As a veteran-owned surplus parts distributor, Stanlo Automation offers components like the Siemens 3RA1921-1B. We help you source essential or legacy parts to maintain your existing automation infrastructure, providing value and reliability.