Siemens 3RT2035-3XJ40-0LA2 Traction Contactor, 41A, 18.5kW, 72V DC, 3-Pole, Frame Size S2 Original Brand New

Product Overview 

The Siemens 3RT2035-3XJ40-0LA2 is a high-performance traction contactor engineered for reliable operation in industrial and transportation environments. Designed with a solid-state operating mechanism and integrated varistor, it ensures efficient switching of motors up to 18.5 kW at 400V (AC-3/AC-3e utilization category). With a compact frame size S2, this 3-pole contactor operates on 72V DC control voltage and supports both screw and spring-loaded terminals for secure and easy wiring.

Key Benefit

• High Load Capacity: Supports up to 41 A and 18.5 kW at 400 V for heavy-duty operations.

• Reliable Operation: Solid-state mechanism ensures consistent performance with minimal wear.

• Integrated Protection: Built-in varistor safeguards against voltage spikes.

• Versatile Connections: Screw terminals for power, spring-loaded terminals for control and auxiliary circuits.

• Compact Design: Frame size S2 saves space in control panels.

• Enhanced Safety: 1 NO + 1 NC auxiliary contacts provide flexible control options.

Key Function

• Efficient switching of motors and inductive loads

• High-performance solid-state operating mechanism

• Integrated varistor for overvoltage protection

• Designed for AC-3e and AC-3 motor control applications

• Supports smooth control of heavy-duty loads in rail, automation, and transport systems

Technical Specification

• Contactor Type: Traction contactor

• Rated Current: 41 A

• Rated Power: 18.5 kW @ 400 V

• Poles: 3-pole

• Control Voltage: 72 V DC

• Voltage Tolerance: 0.7–1.25 × Uc

• Operating Mechanism: Solid-state

• Integrated Varistor: Yes

• Auxiliary Contacts: 1 NO + 1 NC

• Terminals: Screw (main circuit), Spring-loaded (control & auxiliary)

• Frame Size: S2

• Mounting: DIN rail or panel mount (depending on application)

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