Siemens 3RT2037-3XF44-0LA2 Traction Contactor 65A, 30 kW / 400V, 3-Pole, 110V DC Original Brand New

Overview

The Siemens 3RT2037-3XF44-0LA2 is a robust, 3-pole SIRIUS 3RT2 series Traction Power Contactor designed for demanding applications, particularly in the railway sector, but also suited for harsh industrial environments. Classified as Size S2, this high-performance contactor is engineered for switching motors up to 65 A (AC-3e/AC-3) and 30 kW at 400 V.

It features a cutting-edge solid-state operating mechanism and a DC coil voltage of 110 V, making it highly reliable. The design includes an integrated varistor for surge suppression, protecting the coil and extending the device’s lifespan.

Key Features & Function

• Rated current: 65 A

• AC-3e / AC-3 load capacity: 30 kW / 400 V

• 3-pole contactor with 110 V DC control

• Operating range: 0.7–1.25 * Uc

• Solid-state operating mechanism for long-lasting performance

• Integrated varistor for surge protection

• Auxiliary contacts: 2 NO + 2 NC for versatile control

• Main circuit: Screw terminals; control and auxiliary circuit: spring-loaded terminals

• Frame size: S2, with removable auxiliary switch for easy maintenance

Benefit

• Ensures reliable traction control in industrial applications

• Reduces downtime with durable solid-state mechanism

• Provides surge protection through integrated varistor

• Flexible installation with screw and spring-loaded terminals

• Easy maintenance with removable auxiliary switch

• Supports efficient switching of AC-3e/AC-3 loads

Application

• Traction and rail systems

• Industrial motor control

• Heavy machinery

• Electrical distribution panels

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