Siemens 3RT2047-1SF30 Power Contactor, 110A, 55kW, AC/DC Coil, S3 Size, 1NC Auxiliary, Screw Terminal Original Brand New

Overview

The Siemens 3RT2047-1SF30 is a high-performance power contactor designed for reliable switching of motors and other demanding industrial loads. As part of the SIRIUS family, this contactor is built to meet the latest standards, including AC-3e and AC-3, ensuring efficiency and safety in your electrical systems. Its compact Size S3 design and flexible AC/DC control voltage make it a versatile choice for a wide range of applications.

Key Features & Benefit

• High Performance: Rated for 110 A (AC-3e/AC-3) and capable of handling motor loads up to 55 kW at 400 V, providing robust and reliable operation.
• Flexible Control: The wide voltage range of the control coil (83-150 V AC/DC) with an integrated varistor simplifies inventory and allows for use in various international control systems while protecting against voltage spikes.
• Compact Design: The Size S3 frame offers a high power-to-size ratio, saving valuable space within control cabinets.
• Simplified Wiring: Equipped with robust screw terminals for secure and straightforward electrical connections, suitable for standard industrial wiring practices.
• Integrated Auxiliary Contacts: Includes a built-in 1 NC auxiliary contact for signaling or control circuit feedback, reducing the need for separate add-on blocks.
• Enhanced Reliability: The integrated varistor protects the coil against harmful overvoltage surges, extending the contactor’s lifespan and improving system reliability.
• PLC Compatibility: The F-PLC-IN designation indicates suitability for direct connection to PLC outputs, streamlining integration into automated control systems.

Function

• Motor Switching: Primarily used for switching squirrel-cage motors for normal starting and stopping applications.
• Load Control: Suitable for controlling other resistive and inductive loads in industrial environments.
• Safety & Control: The integrated auxiliary contact provides feedback to a PLC or control system, enabling logic and safety functions.

Technical Specification

• Product Type: Power Contactor
• Product Designation: SIRIUS
• Product Number: 3RT2047-1SF30
• Current Rating (AC-3e/AC-3): 110 A
• Rated Power: 55 kW at 400 V
• Number of Poles: 3-pole
• Control Coil Voltage: 83-150 V AC/DC, 50/60 Hz
• Integrated Protection: Varistor
• Auxiliary Contacts: 1 NC
• Terminal Type: Screw Terminal
• Size: S3
• Special Feature: F-PLC-IN

Application

• Motor control centers (MCCs)
• Pump stations
• HVAC systems
• Conveyor systems
• Industrial machinery automation
• Manufacturing and process control

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