Siemens 3RT2045-3XJ40-0LA2 Traction Contactor 80A, 37kW, 3-Pole, 72V DC, Solid-State Mechanism, S3 Frame Original Brand New

Overview

The Siemens 3RT2045-3XJ40-0LA2 is a high-performance traction contactor engineered for demanding industrial applications. With its AC-3e/AC-3 capability, it supports up to 80 A and 37 kW at 400 V, delivering consistent and reliable performance. Designed with a solid-state operating mechanism and integrated varistor, this contactor ensures optimal switching reliability and voltage protection, even in rigorous operating conditions.

Key Benefit

• High Switching Capacity – Supports up to 80 A and 37 kW at 400 V.

• Enhanced Durability – Solid-state operating mechanism ensures long service life and low maintenance.

• Safe & Reliable – Includes an integrated varistor for effective overvoltage protection.

• Easy Installation – Screw terminals for the main circuit and spring-loaded terminals for auxiliary/control circuits.

• Compact and Efficient – Frame size S3 is ideal for space-saving control panel designs.

• Versatile Control Voltage – Operates within a wide control voltage range of 0.7–1.25 × Uc at 72V DC.

Function

• Switching Motor Loads: Ideal for applications under AC-3e/AC-3 categories.

• Control Circuit Integration: Spring-loaded terminal ensures secure and quick wiring.

• Auxiliary Functionality: Includes 1 NO + 1 NC auxiliary contacts for signaling and feedback.

• Protection & Safety: Integrated varistor protects against voltage surges.

• Industrial Applications: Suitable for traction systems, automation, and heavy-duty motor control.