Siemens 3RT2026-2XB40-0LA2 SIRIUS Power Contactor, 25 A, 11 kW, 24 V DC, S0 Frame Original Brand New

Overview

The Siemens 3RT2026-2XB40-0LA2 is a high-performance SIRIUS power contactor designed for reliable and efficient switching of electrical loads. This specific model is a traction contactor, built to withstand the demanding conditions of railway and other traction applications. With a 3-pole design and a rated operational current of 25 A (AC-3e/AC-3), it is ideal for controlling motors up to 11 kW at 400 V. The compact S0 frame size makes it suitable for space-constrained installations, while its robust construction ensures long-term durability.

Key Features & Benefit

• High Performance: Rated for up to 25 A and 11 kW, this contactor offers reliable power switching for a wide range of industrial and traction applications.
• Traction-Grade Durability: Specifically engineered as a traction contactor, it is designed to endure the vibrations, shocks, and harsh environmental conditions typical in railway systems.
• Efficient Operation: The solid-state operating mechanism with an integrated varistor provides fast, reliable, and surge-protected switching, minimizing wear and tear.
• Versatile Control: Operates on a 24 V DC control voltage with a wide tolerance range (0.7-1.25 * Uc), ensuring stable performance even with fluctuating power supply.
• Integrated Auxiliary Contacts: Features one normally open (1 NO) and one normally closed (1 NC) auxiliary contact, allowing for easy integration into control circuits and feedback systems.
• Convenient Installation: The spring-loaded terminals simplify wiring, providing a secure and vibration-proof connection without the need for additional tools.
• Compact Design: The S0 frame size optimizes panel space, making it an excellent choice for modern, high-density electrical cabinets.

Function

The Siemens 3RT2026-2XB40-0LA2 contactor’s primary function is to switch on and off an electrical circuit, typically a motor. Its applications include:

• Motor Control: Starting, stopping, and reversing three-phase motors in industrial machinery, pumps, and fans.
• Traction Systems: Critical for controlling traction motors in electric locomotives, trams, and other rail vehicles.
• General Load Switching: Used for switching resistive loads, lighting, and heating systems in various industrial settings.
• Integration with Automation Systems: The auxiliary contacts enable seamless communication with PLCs and other control systems for monitoring and control.

Specification

• Product Number: Siemens 3RT2026-2XB40-0LA2
• Product Type: Power Contactor (Traction Contactor)
• Series: SIRIUS
• Rated Current (AC-3e/AC-3): 25 A
• Rated Power (at 400 V): 11 kW
• Number of Poles: 3-pole
• Control Voltage: 24 V DC
• Operating Range: 0.7-1.25 * Uc
• Operating Mechanism: Solid-state with integrated varistor
• Auxiliary Contacts: 1 NO + 1 NC
• Terminal Type: Spring-loaded terminal
• Frame Size: S0

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