Siemens 3RT2047-1AF04 SIRIUS 3RT2 Power Contactor, 110A, 55kW/400V, 3-Pole, 110V AC Coil, Size S3, Screw Terminal Original Brand New

Overview

The Siemens 3RT2047-1AF04 is a high-performance industrial power contactor designed for reliable switching of electric motors and industrial equipment. Built for durability and precision, this 3-pole contactor is optimized for AC-3/AC-3e applications, delivering a rated current of 110 A and a power capacity of 55 kW at 400V. With a 110V AC 50 Hz coil and screw terminals, it offers easy installation and dependable operation in heavy-duty electrical control systems.

Key Features

• Rated Operational Current: 110 A (AC-3)

• Rated Power Output: 55 kW at 400V

• Voltage Coil Rating: 110 V AC, 50 Hz

• Number of Poles: 3-Pole contactor

• Auxiliary Contacts: 2 Normally Open (NO) + 2 Normally Closed (NC)

• Mounting Style: Screw terminals for secure connections

• Size: S3

• Removable Auxiliary Switch: Yes

• Application Standards: Built to Siemens’ high-quality standards for industrial automation and control

Benefit

• High Efficiency Switching: Suitable for demanding AC-3e/AC-3 motor applications.

• Compact and Reliable Design: Siemens’ trusted design ensures long operational life.

• Ease of Installation: Screw terminals and removable auxiliary switch offer flexible mounting and maintenance.

• Versatile Applications: Ideal for use in control panels, industrial automation, motor starters, HVAC systems, and more.

Function & Application

The 3RT2047-1AF04 is primarily used for switching and controlling motors, often serving as the central component in a load feeder (motor starter). Its functions include:

• Switching 3-phase AC motors on and off.
• Serving as a main component in reversing or wye-delta (star-delta) starter combinations.
• Integration into automated industrial systems, particularly in machinery, pumps, compressors, and ventilation systems.

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