Siemens SIRIUS 3RT2047-1NB34 Power Contactor AC-3e/AC-3, 110A, 55kW, 2NO+2NC Aux Contacts Original Brand New

Overview

The Siemens SIRIUS 3RT2047-1NB34 is a high-performance power contactor designed for reliable switching of electrical loads in industrial applications. This robust device is engineered for safety and efficiency, making it an ideal choice for motor control and other demanding switching tasks. It features a compact Size S3 design, enabling significant space savings within control panels.

The integrated varistor provides superior surge protection for the control circuit, enhancing system longevity. With its versatile 20-33 V AC/DC control voltage range and removable auxiliary switch, this contactor offers exceptional flexibility and ease of installation.

Key Features & Benefit

• High Power Handling: Rated for 110 A (AC-3e/AC-3) and 55 kW at 400 V, this contactor is built to manage heavy-duty electrical loads with confidence.
• Versatile Control: The wide 20-33 V AC/DC control voltage range allows for integration into a variety of control systems without the need for additional components.
• Enhanced Safety & Longevity: An integrated varistor protects the control circuit from voltage spikes, extending the lifespan of the contactor and associated equipment.
• Flexible Auxiliary Contacts: The 2 Normally Open (NO) + 2 Normally Closed (NC) auxiliary contacts provide ample options for signaling, interlocking, and control circuit feedback.
• Convenient Installation: The screw terminals ensure a secure and reliable connection, while the removable auxiliary switch simplifies wiring and maintenance.
• Space-Saving Design: The compact Size S3 footprint allows for higher density installations, optimizing cabinet space.
• Global Standard Compliance: Meets international standards for industrial control gear, ensuring its suitability for a wide range of applications worldwide.

Technical Specification

• Product Number: 3RT2047-1NB34
• Product Type: Power Contactor
• Main Poles: 3-pole
• Rated Operational Current (AC-3e/AC-3): 110 A
• Rated Operational Power (AC-3): 55 kW at 400 V
• Control Supply Voltage: 20-33 V AC/DC (50/60 Hz)
• Integrated Protection: Varistor
• Auxiliary Contacts: 2 NO + 2 NC
• Terminals: Screw Terminals
• Size: S3
• Features: Removable Auxiliary Switch
• Series: Siemens SIRIUS

Function & Application

The Siemens 3RT2047-1NB34 power contactor is primarily used for switching and controlling electrical loads in a variety of industrial and commercial settings. Its robust design makes it ideal for:

• Switching 3-phase electric motors.
• Controlling resistive loads.
• Integrating into motor starter combinations.
• Use in HVAC systems, pumps, and fans.
• Industrial automation and control panels.

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