Siemens Industrial Controls 3RA2921-1AA00 SIRIUS Link Module Screw Terminal

The Siemens 3RA2921-1AA00 is a SIRIUS link module designed to provide both electrical and mechanical connections for building distributed motor control assemblies. This Size S0 link module enables quick and reliable assembly of feeders and distribution systems by connecting multiple devices together in a compact configuration.

Key Features:

• Screw terminal connection type for secure wiring
• Compatible with 3RV2.1 and 3RV2.2 motor starter protectors and circuit breakers (Size S00/S0)
• Works with 3RT2.2 Size S0 contactors
• AC operation for standard industrial control applications
• Part of the SIRIUS modular system for flexible configuration
• Compact dimensions: 43.2mm H x 45mm W x 72.9mm D (1.7" x 1.77" x 2.87")

This link module simplifies the assembly of motor control centers and distribution panels by allowing individual SIRIUS components to be mechanically and electrically connected together. The screw terminal design ensures reliable connections in industrial environments while maintaining easy serviceability.