Overview: Siemens 3RT1956-4BA31 Paralleling Link
The Siemens 3RT1956-4BA31 is a genuine SIRIUS line accessory designed as a robust 3-pole paralleling link for use with the Siemens SIRIUS 3RT1.5 series power contactors (Size S6).
This pre-fabricated connection link simplifies the process of connecting two 3-pole 3RT1.5 contactors in parallel to double their current-carrying capacity, providing a safe, reliable, and standardized solution for high-current applications. It features a specific bore hole design for secure mounting and correct alignment.
As a critical component in control cabinet construction, this paralleling link ensures optimal performance and reliability for motor starting and switching applications.
Benefit
- Optimized Performance: Allows for the paralleling of two contactors, effectively doubling the rated operational current capacity for demanding loads.
- Time-Saving Installation: Pre-formed, standardized link simplifies wiring and drastically reduces installation and commissioning time compared to custom wiring.
- Increased Reliability: Ensures a secure, consistent, and low-resistance connection between the contactors, minimizing the risk of hot spots and connection failures.
- Genuine Siemens Quality: Manufactured to strict Siemens standards, guaranteeing seamless integration and reliable operation within the SIRIUS modular system.
- Safety & Standardization: Features a precise fit for the 3RT1.5 contactor, adhering to professional wiring and safety standards.
Function / Application
The 3RT1956-4BA31 link is used in industrial control panels and machinery where a single contactor cannot handle the required current for the load, such as large motor starting or high-capacity heating elements.
Function
Mechanically and electrically connects the main power terminals of two adjacent 3RT1.5 contactors (Size S6), ensuring both operate as a single, higher-capacity switching unit.
Application
- High-power motor control circuits.
- Heavy-duty industrial machinery.
- HVAC and pump systems requiring high surge current handling.
- Any application where current requirements exceed the capacity of a single S6 contactor.
For more information on the Siemens 3RT1956-4BA31 and our extensive range of industrial control products, visit Turll today!













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