Siemens 3RT1066-2XB46-0LA2 SIRIUS Power Contactor, 300A, 160kW, 24V DC Coil Original Brand New

Overview

The Siemens 3RT1066-2XB46-0LA2 is a robust and high-performance SIRIUS power contactor specifically engineered for demanding environments, including railway applications where compliance with IEC 60077 is mandatory. This 3-pole contactor is rated for AC-3e/AC-3 300 A and a maximum power of 160 kW at $400\text{ V}$. It features an advanced electronic drive (24V DC coil) with a wide operating voltage range, PLC input capability (24-110 V DC), $2\text{ NO}+2\text{ NC}$ auxiliary contacts, busbar main circuit connection, and spring-loaded terminals for control/auxiliary circuits.

Benefit

• Reliability in Harsh Environments: Designed and tested according to IEC 60077 for railway applications, ensuring high reliability under extended rated conditions, temperature variations, and shock/vibration.
• Optimal Motor Control: Perfect for switching high-power motors up to $160\text{ kW}$, providing efficient and safe operation.
• Flexible Control: Features an electronic drive with a wide control voltage range and PLC input compatibility, allowing for direct and reliable activation from various control systems.
• Space-Saving Connections: Busbar connection for the main circuit simplifies high-current wiring in panels.
• Quick & Secure Wiring: Spring-loaded terminals for the control and auxiliary circuits provide vibration-proof, maintenance-free, and rapid wiring.

Application

This contactor is ideal for various heavy-duty, critical applications, including:

• Rail and Transportation Systems: Traction control, onboard auxiliary systems, and ground-based railway infrastructure.
• Heavy Industrial Machinery
• Pump and Compressor Control
• Ventilation and Air Conditioning Systems (HVAC)
• Any application requiring a robust, high-current contactor with extended operating conditions.

Function

The 3RT1066-2XB46-0LA2 functions as a primary switching device in electrical circuits. It safely and reliably connects or disconnects a high-power load (like a $160\text{ kW}$ motor) from the main power supply. The low-power $24\text{ V DC}$ electronic coil, which accepts signals from a PLC (Programmable Logic Controller) or other control devices, actuates the main contacts. The integrated $2\text{ NO}+2\text{ NC}$ auxiliary contacts provide feedback or interlocking signals to the control system.

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