Siemens SIRIUS 3RT1065-6XJ46-0LA2 Power Contactor 265A, 132kW, 72V DC Original Brand New

Overview: High-Performance Siemens SIRIUS Power Contactor

The Siemens 3RT1065-6XJ46-0LA2 is a robust, 3-pole SIRIUS power contactor engineered for high-performance switching applications, particularly those requiring compliance with IEC 60077 extended rated conditions for railroad environments. Rated for a maximum operational current of 265 A (AC-3e/AC-3) and capable of handling a motor power of 132 kW at 400 V, this contactor is ideal for controlling powerful electric motors and demanding industrial loads.

Its innovative electronic drive operates on a 72 V DC control supply voltage (Uc​) with an extended operating range (0.7-1.25×Uc​), ensuring reliable performance even with fluctuating power supplies. The inclusion of a versatile PLC input (24-110 V DC) allows for seamless integration into modern automation systems. 

Benefit and Advantages

1. Railway Certified Performance: Conforms to the stringent IEC 60077 standard, making it the perfect choice for railway systems and other applications with challenging environmental and voltage conditions.
2. High Power Density: Compact Size S10 contactor with a powerful 265 A / 132 kW rating, saving panel space without sacrificing performance.
3. Advanced Control: Features an electronic drive (72 V DC) and a wide-range PLC input (24-110 V DC), offering high compatibility and reliable control directly from modern PLC outputs or low-voltage systems.
4. Robust Connectivity: Busbar connections for the main circuit ensure robust, high-current power transfer, while screw terminals for the control and auxiliary circuits provide secure and easy wiring.
5. Simplified Design: Comes equipped with integrated 2 NO + 2 NC auxiliary contacts, reducing the need for external components and simplifying panel design.
6. SIRIUS Modular System: Part of the reliable Siemens SIRIUS modular system, ensuring seamless integration with other Siemens protective and switching components.

Function and Application

The Siemens 3RT1065-6XJ46-0LA2 functions primarily as an electrical switch for turning three-phase loads on and off. Its specialized features make it highly suitable for:

• Railway and Transportation Systems: Traction control, HVAC, and auxiliary systems requiring IEC 60077 compliance.
• Heavy Industrial Motor Control: Switching powerful motors in demanding environments like mining, cement, and large manufacturing plants.
• High-Current AC-3e/AC-3 Switching: Reliable switching of squirrel-cage motors under normal starting and running conditions.
• Automation Integration: Interfacing with PLC systems in complex automated control panels, thanks to the wide voltage PLC input.

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