Siemens 3RT2047-3XB40-0LA2 Traction Contactor 110 A, 55 kW, 3-Pole, 24V DC Original Brand New

Overview

The Siemens 3RT2047-3XB40-0LA2 is a premium traction contactor designed for robust industrial and railway applications. Engineered for high-efficiency switching, this contactor ensures reliable operation even under demanding AC-3e/AC-3 load conditions. It is equipped with a solid-state operating mechanism and an integrated varistor for enhanced longevity and safety. Its compact S3 frame size makes it easy to integrate into control panels and traction systems.

Key Features & Function

• Rated Current: 110 A for AC-3e/AC-3 applications

• Power Handling: 55 kW at 400 V

• Poles: 3-pole configuration for reliable three-phase switching

• Operating Voltage: 24 V DC with 0.7-1.25*Uc range

• Operating Mechanism: Solid-state for smooth and silent operation

• Protection: Integrated varistor for overvoltage protection

• Auxiliary Contacts: 1 NO + 1 NC for flexible control logic

• Terminals: Screw terminal for main circuit, spring-loaded for control and auxiliary circuits

• Frame Size: Compact S3 for space-efficient installation

Benefit

1. Durable and Reliable: Solid-state mechanism minimizes mechanical wear.

2. High Performance: Supports up to 55 kW / 400 V industrial and traction applications.

3. Enhanced Safety: Integrated varistor protects against voltage spikes.

4. Easy Integration: Compact S3 frame and flexible terminal design.

5. Versatile Control: Auxiliary contacts allow for advanced automation and monitoring.

Application

• Railway traction systems

• Industrial motor control

• High-power switching in automation systems

• AC-3e/AC-3 load management

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