Siemens 3RT2035-1XB40-0LA2 SIRIUS Traction Contactor, 41A, 24V DC, S2 Original Brand New

Overview

The Siemens 3RT2035-1XB40-0LA2 is a high-performance SIRIUS 3RT2 traction contactor designed for demanding applications, particularly within railway and transportation systems. This 3-pole contactor is engineered for safe and reliable switching of motors under extreme conditions. It belongs to the SIRIUS modular system, ensuring seamless integration and compatibility with a wide range of accessories.

Key Benefits

• Railway Approved Performance: Complies with IEC/EN 60077-2 and EN 50155 standards, guaranteeing suitability for harsh railway environments, including an extended temperature range of -40 to +70 °C.
• Enhanced Reliability: Features a solid-state operating mechanism and an integrated varistor for superior overvoltage damping, protecting the coil and ensuring reliable operation over a wide control voltage range (0.7-1.25* Uc).
• Compact & Efficient: Offers powerful motor switching capacity up to 18.5 kW / 400 V within a compact Frame Size S2 design.
• Versatile Connectivity: Includes 1 NO + 1 NC auxiliary contacts and uses secure screw terminals for straightforward, robust wiring.

Function/Application

The 3RT2035-1XB40-0LA2 is primarily used for switching and controlling 3-phase AC motors under conditions where standard industrial contactors might fail. Its core function is to make and break the connection between the main power supply and a load (motor), particularly:

• Controlling AC motor loads up to 18.5 kW / 400 V.
• Switching systems in railway rolling stock, trackside equipment, or other outdoor/mobile applications subject to high vibration, extended temperature, and voltage variations.
• Integration into automated industrial systems requiring a reliable, high-specification DC-controlled power contactor.

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