Siemens 3RT1055-2XJ46-0LA2 SIRIUS Power Contactor, 150A, 75kW, 72V DC (Railroad) Original Brand New

Overview

The Siemens 3RT1055-2XJ46-0LA2 is a high-performance SIRIUS power contactor designed for demanding industrial applications, specifically for railroad use. It’s built to the IEC 60077 standard, ensuring reliability and safety in railway environments. This 3-pole contactor is capable of handling up to 150 A (AC-3e/AC-3) and 75 kW at 400 V, making it suitable for controlling powerful electric motors.

Key Features & Benefit

• Robust Performance: With a 150 A rating and 75 kW power capacity, it’s ideal for heavy-duty motor control.
• Specialized for Railroad: Meets the stringent IEC 60077 standard, guaranteeing its suitability and durability in railway systems.
• Flexible Control: Operates with a wide control voltage range of 72 V DC, with a tolerance of 0.7 to 1.25 times the nominal voltage, ensuring reliable operation even with voltage fluctuations. It also has a PLC input of 24-110 V DC for seamless integration into automation systems.
• Efficient Connections: Features a busbar for the main circuit and spring-loaded terminals for control and auxiliary circuits, providing a secure and vibration-resistant connection, which is crucial in mobile applications like trains.
• Integrated Auxiliary Contacts: Comes with 2 NO + 2 NC auxiliary contacts, offering flexible signaling and control options.
• Electronic Drive: The electronic drive ensures precise and fast switching, reducing wear and extending the lifespan of the contactor.
• Space-Saving Design: Part of the SIRIUS modular system, it integrates easily into control panels and cabinets.

Function

The Siemens 3RT1055-2XJ46-0LA2 functions as a remotely operated switch for the main power circuit of electric motors. It allows for the safe and efficient switching of high currents in applications like traction drives, pumps, and fans in railroad vehicles and infrastructure. Its electronic drive and spring-loaded terminals make it highly resistant to vibrations and shocks, ensuring consistent performance in harsh environments.