Overview
The Siemens 3RT2016-2XF41-0LA2 is a high-performance SIRIUS S00 traction contactor engineered for demanding industrial and railway applications, particularly in DC control circuits. Part of the SIRIUS 3RT contactor family with an extended operating range, this 3-pole device is designed for reliable switching of motors and heavy loads under utilization categories AC-3e/AC-3. It integrates a wide-range, solid-state DC coil (72-125 V DC) and a built-in varistor, ensuring maximum operational reliability and surge suppression. The compact Frame Size S00 makes it ideal for space-constrained installations.
Key Features and Technical Specifications
- Product Type: Traction Contactor
- Manufacturer Part No.: 3RT2016-2XF41-0LA2
- Brand: Siemens SIRIUS
- Frame Size: S00
- Poles: 3-pole
- Rated Current (AC-3e/AC-3): 9 A
- Rated Power (at 400 V): 4 kW
- Coil Voltage Range (DC): 72-125 V DC ( 25% tolerance on control supply voltage )
- Operating Mechanism: Solid-state (electronic drive)
- Surge Suppression: Integrated varistor
- Auxiliary Contacts: 1 NO (Normally Open)
- Connection Technology: Spring-loaded terminal (fast, vibration-proof wiring)
Benefit
- Exceptional Reliability for DC Systems: The wide-range 72-125 V DC solid-state operating mechanism (0.7-1.25 * ) ensures reliable switching even with significant voltage fluctuations, which is critical in traction and battery-backed applications.
- Space-Saving Design: The compact Frame Size S00 allows for high-density panel mounting, optimizing cabinet space.
- Enhanced Coil Protection: An integrated varistor protects the control electronics and coil against switching overvoltages, extending the service life of the component and system.
- Quick & Secure Installation: Spring-loaded terminals offer a fast, maintenance-free, and highly secure connection, especially beneficial in environments subject to vibration.
- Simplified Integration: The included 1 NO auxiliary contact provides immediate feedback on the contactor status for interlocking and control circuits.
Application
This robust Siemens traction contactor is specifically suited for high-reliability switching tasks, including:
- Railway and Traction Systems: Reliable switching of DC motors and power circuits on trains, trams, and other rail vehicles.
- DC Power Distribution: Switching and controlling loads in industrial DC networks and battery systems.
- Automation Control: Integration into control panels and machinery requiring a compact, high-performance DC-controlled power contactor.
For more information on the Siemens SIRIUS 3RT Contactor series, or to explore our full range of industrial control components, visit Turll.













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