Siemens 3RT2045-1XF40-0LA2 SIRIUS Power Contactor Traction 80A, 37kW, 110V DC Coil, S3 Frame Original Brand New

Overview

The Siemens 3RT2045-1XF40-0LA2 is a robust, high-performance traction contactor from the SIRIUS 3RT2 family, expertly engineered for railway applications and demanding industrial DC switching. This 3-pole power contactor is designed for reliable switching of motors in categories AC-3e/AC-3, handling a rated operational current of 80 A and a power output of 37 kW at 400 V.

It features an advanced solid-state operating mechanism (electronic drive) for extended lifespan and consistent performance, powered by a 110 V DC coil. Crucially, it comes with an integrated varistor to provide essential surge suppression, protecting the coil and ensuring high operational reliability in environments with voltage spikes.

Benefit

• Exceptional Reliability for Traction: Specifically designed for the rigorous demands of railway and transit systems (e.g., trains, trams), offering stable and long-lasting operation.
• Surge Protected: The integrated varistor eliminates the need for external components, simplifying wiring and providing immediate protection for the $110\text{V DC}$ coil against transients.
• High Performance: Robust $80\text{A}$ rating and $37\text{kW}$ power handling capacity for switching critical motor and load circuits.
• Reduced Wear & Tear: The modern solid-state operating mechanism extends the electrical and mechanical life of the contactor, reducing maintenance costs.
• Simplified Integration: Features $1\text{NO}+1\text{NC}$ auxiliary contacts and secure screw terminals for straightforward integration into control panels and systems.

Application Areas

• Railway and Public Transit Systems (Traction Motors, On-board Equipment)
• Heavy-Duty DC Switching Applications
• Industrial Machinery and Automation
• Material Handling Systems
• Control Panels requiring high-reliability $110\text{V DC}$ switching

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