Siemens 3RT2047-3AF00 SIRIUS Power Contactor, 110A, 55kW (AC-3), Size S3, 110V AC Coil Original Brand New

Overview

The Siemens 3RT2047-3AF00 power contactor is a high-performance 3-pole switching device from the robust SIRIUS 3RT2 series. Rated for a powerful $110\text{ A}$ (AC-3e/AC-3) and $55\text{ kW}$ at $400\text{ V}$, this Size S3 contactor is engineered for reliable and efficient switching of motors in industrial applications. It is part of the modular SIRIUS system, offering high contact reliability and a compact design.

Benefit

• High Performance in a Compact Design: Achieve $55\text{ kW}$ switching capacity with a space-saving Size S3 unit, part of the optimally coordinated SIRIUS modular system.
• Flexible and Secure Wiring: Features a combination of robust screw terminals for the main power circuit and vibration-proof, fast-wiring spring-loaded terminals for the control and auxiliary circuits.
• Integrated Auxiliary Contacts: The built-in $1\text{ NO}+1\text{ NC}$ auxiliary contacts simplify design and reduce wiring complexity, providing status feedback right out of the box.
• Global Compliance: The SIRIUS 3RT2 contactors are climate-resistant and approved for worldwide use (e.g., IEC and UL/CSA), making them suitable for global machinery export.
• IE3/IE4 Ready: Optimized for use with modern, high-efficiency IE3 and IE4 motors.

Function/Application

The 3RT2047-3AF00 power contactor is primarily used for:

• Switching 3-Phase Motors: Ideal for starting, stopping, and reversing three-phase asynchronous motors in various industrial machinery.
• Load Feeders: Forms the core component in motor and load feeder assemblies, often combined with SIRIUS overload relays and circuit breakers.
• Resistive Loads: Suitable for switching non-inductive or slightly inductive loads (AC-1 duty, up to $130\text{ A}$).

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