Siemens 3RT2047-1NP34 Power Contactor SIRIUS S3, 110A, 55kW Original Brand New

Product Overview

The Siemens 3RT2047-1NP34 SIRIUS Power Contactor is a robust and highly efficient 3-pole switching device, ideally suited for controlling motors up to 55 kW at 400V (AC-3e/AC-3). Part of the trusted SIRIUS modular system, this size S3 contactor is engineered for demanding industrial motor control applications. It features a wide-range 175-280 V AC/DC control voltage coil with an integrated varistor for enhanced surge protection, ensuring reliable operation and longevity.

Benefit and Features

• High Performance: Capable of switching motors up to 55 kW, suitable for heavy-duty industrial loads.
• Flexible Control: The wide-range 175-280 V AC/DC coil simplifies inventory and ensures reliable function across various supply voltages.
• Surge Protection: Built-in varistor protects the control coil against voltage peaks, enhancing system reliability and lifespan.
• Saves Space & Time: Compact design (Size S3) and easy integration into the SIRIUS modular system for streamlined control panel construction.
• Comprehensive Auxiliary Contacts: Pre-installed 2 NO + 2 NC auxiliary contacts provide immediate feedback and integration into complex control circuits.
• Secure Wiring: Robust screw terminals ensure a reliable and durable connection for power and control wiring.
• IE3/IE4 Ready: Optimized for use with modern, energy-efficient motors.

Function/Application

The 3RT2047-1NP34 power contactor is primarily used for switching:

• Three-phase AC motors (Direct-on-Line starting)
• Resistive loads (heating, lighting)
• Other industrial loads requiring high-current switching.

Its robust design and integrated features make it ideal for use in motor control centers (MCCs), industrial machinery, and complex automation systems where reliability and high switching capacity are paramount.

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