Siemens 3RT1456-6XB46-0LA2 Power Contactor AC-1, 275A / 690V, 3-Pole, PLC Input Original Brand New

Overview

The Siemens 3RT1456-6XB46-0LA2 is a robust 3-pole power contactor designed for high-demand industrial and railroad applications. Supporting AC-1 operation at 275 A / 690 V, it features a 24 V DC coil for reliable PLC control input. Built with durability in mind, it comes with electronic auxiliary contacts (2 NO + 2 NC), busbar-compatible main circuit, and screw terminal control for extended rated conditions according to IEC 60077 standards.

Key Benefit

• High Current Capacity: Handles up to 275 A / 690 V AC-1, ensuring reliable operation in heavy-duty industrial circuits.

• PLC-Compatible Control: Flexible 24-110 V DC input for seamless integration with modern automation systems.

• Durable and Reliable: Electronic auxiliary contacts and busbar-ready design provide long-lasting performance.

• Standards Compliant: Designed to meet IEC 60077 standards, ideal for railroad and industrial applications.

• Easy Installation & Maintenance: Screw terminal connections simplify wiring and maintenance tasks.

Function

• Switches high AC currents in industrial circuits

• Integrates with PLC systems for automated control

• Provides auxiliary contact signaling (2 NO + 2 NC)

• Connects directly to busbars for simplified distribution

• Meets extended rated conditions for safe and stable operation

Technical Specification

• Type: Power Contactor

• Model Number: 3RT1456-6XB46-0LA2

• AC-1 Rating: 275 A / 690 V

• Poles: 3

• Coil Voltage (Uc): 24 V DC (0.7–1.25 A)

• PLC Input: 24–110 V DC

• Auxiliary Contacts: 2 NO + 2 NC

• Main Circuit Connection: Busbar

• Control & Auxiliary Circuit: Screw Terminal

• Compliance: IEC 60077

• Operating Temperature: 40 °C

• Application: Railroad, Industrial Automation

Application

• Rolling Stock (Railway and Metro Systems)

• Heating, Ventilation, and Air Conditioning (HVAC) systems

• Power Factor Correction/Capacitor Banks

• Resistance Heating and Furnace Control

• General Load Switching in Industrial Plants

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