Siemens SIRIUS 3RA1963-2B: S10 Star-Delta (Wye-Delta) Contactor Link Rail Set for 3RT1.6 Original Brand New

Overview: Siemens 3RA1963-2B SIRIUS Link Rail Set

The Siemens 3RA1963-2B is an essential accessory kit from the SIRIUS modular system, specifically engineered for rapid and reliable connection of S10 size power contactors in a star-delta (Y-D) starter configuration. This pre-assembled link rail set is designed to connect three 3RT1.6 main/delta contactors to the corresponding 3RT1.6 star/wye contactor. It drastically reduces wiring time and minimizes connection errors in motor control applications.

Key Product Details & Function

• Product Designation: Link rail set / Busbar set.

• Contactor Size: Suitable for Siemens SIRIUS S10 contactors (e.g., 3RT1.6 series).

• Application: For use in Star-Delta (Wye-Delta) Starter assemblies.

• Connection Type: Provides a secure, phase-swapping connection on the output side (motor side).

• Inclusions: Neutral bridge included for complete wiring.

• Terminal Configuration: Designed for contactors with a busbar connection (model without box terminal).

• Function: Ensures correct and efficient phase connection and swapping between the delta and star contactors to execute the transition in a Y-D motor starting sequence.

Benefit

• Optimized for Delta–Star Configuration
  Ensures secure and precise electrical connection between delta and wye contactors.

• Phase Swapping Capability
  Provides correct phase alignment for safe and stable motor and equipment operation.

• Includes Neutral Bridge
  Improves system grounding and electrical stability.

• Busbar Connection Ready
  Designed for installations using busbars, eliminating the need for box terminals.

• Enhanced Reliability
  Siemens engineering ensures longevity, consistent performance, and minimal maintenance.

• Simplified Installation
  Preconfigured design supports quick, straightforward wiring and system setup.

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