Siemens 3RT1075-2XB46-0LA2 Power Contactor 400A, 200kW, 24V DC Electronic Drive, Railroad Compliant Original Brand New

Overview: Siemens 3RT1075-2XB46-0LA2 High-Performance Power Contactor

The Siemens SIRIUS 3RT1075-2XB46-0LA2 is a robust, high-performance power contactor specifically engineered for demanding industrial and railroad applications. Designed for motor switching in the AC-3e/AC-3 operational category, this 3-pole device handles a substantial continuous operational current of 400 A and is suitable for 200 kW motors at 400 V.

It features an advanced electronic drive for reliable control and energy efficiency, accepting a wide PLC input voltage range ($24-110$ V DC) for seamless integration into complex automation systems. The product’s compliance with the IEC 60077 railroad standard ensures its suitability and resilience for use in rolling stock and railway infrastructure.

Benefit

• Exceptional Power Handling: $\text{400 A}$ rating and $\text{200 kW}$ capability make it ideal for high-power motor applications.
• Railroad Certified: Adherence to the IEC 60077 standard guarantees performance and safety in railway environments, including resistance to shock and vibration.
• Reliable Electronic Drive: The $24$ V DC electronic drive ensures precise, low-power control and a wider operating window.
• Simplified PLC Integration: The broad $\text{24-110 V DC}$ PLC input voltage range allows for flexible connection to various control signals.
• Robust Connection: The main circuit utilizes busbar connections for high-current transfer, while the control and auxiliary circuits use spring-loaded terminals for vibration-proof and quick wiring.
• Integrated Monitoring: Features $\text{2 NO + 2 NC}$ integrated auxiliary contacts for reliable status feedback and interlocking.

Function and Application

The primary function of the Siemens 3RT1075-2XB46-0LA2 is the remote switching and control of electric motors, especially in high-demand, mission-critical environments. Its design and rating make it perfectly suited for:

1. Railway and Rolling Stock Systems: Traction motors, auxiliary compressors, HVAC systems on trains (due to IEC 60077 compliance).
2. Heavy Industrial Machinery: Pumps, fans, conveyors, and large industrial drives requiring $\text{400 A}$ switching capacity.
3. Automation and Control Panels: Integration into systems requiring robust, high-current switching under $24$ V DC control.

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