Siemens 3RT2035-3XB40-0LA2 Traction Contactor 3-Pole, 41A, 18.5kW/400V, 24V DC, S2 Frame Original Brand New

Overview

The Siemens 3RT2035-3XB40-0LA2 is a high-performance traction contactor engineered for reliable switching of motors and resistive loads in industrial and traction applications. Designed for AC-3e/AC-3 operation, this 3-pole contactor supports up to 41 A and 18.5 kW at 400 V, ensuring dependable performance under demanding electrical conditions.

With a solid-state operating mechanism and an integrated varistor, it offers enhanced protection against voltage spikes and long-term operational durability. The compact S2 frame size makes it ideal for modern control panels where space efficiency and performance are crucial.

Key Features & Specification

• Model: Siemens 3RT2035-3XB40-0LA2

• Type: Traction Contactor

• Operational Category: AC-3e / AC-3

• Rated Current: 41 A

• Rated Power: 18.5 kW (at 400 V)

• Poles: 3-Pole

• Control Voltage: 24 V DC (0.7–1.25 × Uc)

• Operating Mechanism: Solid-state

• Integrated Varistor: Yes (for surge protection)

• Auxiliary Contacts: 1 NO + 1 NC

• Main Circuit Connection: Screw terminal

• Control & Auxiliary Connection: Spring-loaded terminal

• Frame Size: S2

• Brand: Siemens

Benefit

• Reliable Motor Control: Built for consistent switching of motors and high-demand traction systems.
• Enhanced Safety: Integrated varistor protects against transient voltage surges.
• Long Service Life: Solid-state mechanism ensures minimal wear and extended operational life.
• Space-Saving Design: Compact S2 frame for efficient control cabinet integration.
• Easy Installation: Spring-loaded terminals simplify wiring and reduce installation time.

Function & Application

The Siemens 3RT2035-3XB40-0LA2 contactor is ideal for:

• Industrial automation systems

• Traction and transport systems

• Conveyor drives and machinery

• Power control panels

• Electric motor control applications

It is optimized for high switching reliability and low maintenance, making it a preferred choice for engineers and system integrators.

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