Siemens SIRIUS 3RT2046-3XB40-0LA2 Traction Contactor, 95A, 45kW, 3-Pole, 24V DC Coil, S3 Frame Original Brand New

Overview: High-Performance Siemens Traction Contactor for Railway Applications

The Siemens SIRIUS 3RT2046-3XB40-0LA2 is a robust and reliable traction contactor from the SIRIUS 3RT2 series, specifically engineered for demanding railway and extended application environments. Designed for switching motors under severe conditions, this 3-pole contactor is rated for 95 A (AC-3e/AC-3) and a power of $45\text{ kW}$ at $400\text{ V}$. It features an extended operating range and enhanced resistance to mechanical oscillations and vibrations, making it an ideal choice for traction systems.

Key Benefit

• Extreme Reliability: Optimized for railway applications and extended application range, ensuring stable performance in harsh environments with an extended ambient temperature range (up to +70∘C).
• Wide Voltage Tolerance: Solid-state operating mechanism with an extended control voltage range of 0.7–1.25×Us​ ($24\text{ V DC}$), guaranteeing reliable switching even with significant voltage fluctuations.
• Superior Protection: Integrated varistor provides effective overvoltage damping for the coil, prolonging the contactor’s lifespan and protecting the control system.
• Vibration Resistant: Features a spring-loaded terminal connection for control and auxiliary circuits, contributing to excellent vibration resistance, essential for traction use.
• Flexible Integration: Equipped with one normally open ($\text{1 NO}$) and one normally closed ($\text{1 NC}$) auxiliary contact for seamless integration into control circuits.

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