Siemens SIRIUS 3RT2047-3CF04-3MA0 Power Contactor 110 A, 55 kW, 110 V AC, S3 with Varistor Original Brand New

Overview

The Siemens SIRIUS 3RT2047-3CF04-3MA0 is a high-performance 3-pole power contactor designed for reliable switching of motors and electrical loads up to 110 A. As part of the globally recognized SIRIUS modular system, this size S3 contactor combines robust functionality with user-friendly features, making it an ideal component for industrial control panels, automation systems, and machinery.

Key Features & Benefit

• High Power Capacity: Rated for AC-3e/AC-3 operation at 110 A and 55 kW at 400 V, providing exceptional performance for demanding applications.
• Integrated Protection: Comes with a pre-installed plugged-in varistor for surge suppression, protecting the contactor coil from voltage spikes and extending its operational life.
• Versatile Auxiliary Contacts: Includes 2 Normally Open (NO) and 2 Normally Closed (NC) auxiliary contacts, offering flexible options for control, signaling, and interlocking circuits.
• Dual Connection Technology: Features screw terminals for the main circuit, ensuring a secure and high-current connection, while the control and auxiliary circuits use spring-loaded terminals for fast, tool-free wiring. This combination simplifies installation and maintenance.
• Captive Auxiliary Switch: The auxiliary switch is permanently fixed, preventing loss and simplifying assembly.
• Compact & Efficient: As a size S3 contactor, it offers a high power-to-size ratio, helping to save space within control cabinets.
• Long-Lasting Performance: Built with Siemens’ renowned quality, ensuring durability and reliability in harsh industrial environments.

Technical Specification

• Product Type: Power Contactor
• Product Series: Siemens SIRIUS 3RT2
• Part Number: 3RT2047-3CF04-3MA0
• Rated Current: 110 A
• Rated Power (AC-3e/AC-3): 55 kW at 400 V
• Number of Poles: 3-pole
• Control Voltage: 110 V AC, 50 Hz
• Auxiliary Contacts: 2 NO + 2 NC
• Terminal Type (Main Circuit): Screw Terminals
• Terminal Type (Control/Auxiliary): Spring-Loaded Terminals
• Protection: Integrated Varistor
• Size: S3
• Special Feature: Captive Auxiliary Switch

Application

The Siemens 3RT2047-3CF04-3MA0 is perfectly suited for a wide range of industrial applications, including:

• Motor starting and control
• Pump and fan control
• Heating and lighting circuits
• HVAC systems
• Conveyor systems
• General machinery control

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