3RA2921-1BA00 – Siemens SIRIUS Link Module, DC Operation, Screw Terminal, In Stock
Buy the Siemens 3RA2921-1BA00, a SIRIUS link module for electrical and mechanical connection between 3RV2.1/3RV2.2 circuit breakers and 3RT2.2 contactors (DC operation), or for 3RW3 soft starters and 3RF34 solid-state contactors, screw terminal. In stock and available for fast shipping. Get a quote today.
Key Technical Specifications
- Product Type: Link module, SIRIUS 3RA2 series
- Category: Wiring modules, connectors and kits
- Compatible Circuit Breakers: 3RV2.1, 3RV2.2
- Compatible Contactors: 3RT2.2 (DC operation)
- Compatible Alternatives: 3RW3 soft starter, 3RF34 solid-state contactor
- Terminal Type: Screw terminal
- Size Compatibility: S00 and S0 (breaker) to S0 (contactor)
Design and Performance
Simplified Assembly of Load Feeders from Single Devices
Feeders can be easily assembled from single devices with the help of link modules like the 3RA2921-1BA00, connecting a circuit breaker directly to a contactor without external jumpers or busbars.
Direct DC Contactor Connection Between S00/S0 Components
This link module is used to connect 3RV circuit breakers of sizes S00 and S0 with 3RT power contactors of size S0 operating on DC, simplifying the assembly of DC-operated motor starter combinations.
Flexible Compatibility Beyond Standard Contactors
Beyond standard 3RT2.2 contactors, this link module also supports connection to 3RW3 soft starters or 3RF34 solid-state contactors, giving engineers flexibility to build different starter types using the same interconnection component.
Combined Electrical and Mechanical Connection
Providing both electrical and mechanical connection in a single component, this link module reduces wiring time and simplifies the physical assembly of load feeder combinations compared to separate jumpers and mounting brackets.
Part of the Comprehensive SIRIUS Modular System
As part of Siemens’ broader SIRIUS 3RA2 accessory range, this link module lets engineers select the exact interconnection solution matched to their specific breaker, contactor, or starter combination.
Why Buy the 3RA2921-1BA00 From Us
- In stock and ready for immediate dispatch
- Fast shipping on every order
- Commercial advisory support to help you confirm compatibility with your 3RV2 breaker and contactor/starter combination
- Competitive pricing — get a quote in minutes
