Siemens 3RT2046-1NF34 Power Contactor 95A, 45kW, 83-155V AC/DC, 2 NO + 2 NC Aux Contacts, Screw Terminal Original Brand New

Overview

The Siemens 3RT2046-1NF34 is a high-performance power contactor from the SIRIUS line, designed for demanding industrial applications. Engineered for reliability and efficiency, this 3-pole contactor is suitable for controlling AC motors and other resistive loads.

It features a robust design with an integrated varistor for surge protection and a flexible 83-155 V AC/DC control voltage range, making it a versatile component in a variety of electrical systems. With a rated operational current of 95 A (AC-3e/AC-3) and a power rating of 45 kW at 400 V, it’s built to handle significant loads with ease.

Key Features & Benefit

• High Performance: Rated for 95 A (AC-3e/AC-3) and 45 kW, ensuring reliable performance for heavy-duty motor control.
• Wide Voltage Range: The 83-155 V AC/DC control voltage with an integrated varistor offers flexibility and enhanced protection against voltage spikes.
• Integrated Varistor: Provides built-in surge suppression, protecting the contactor and connected equipment from damaging voltage transients.
• Versatile Auxiliary Contacts: Includes 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, allowing for complex control and signaling applications.
• Easy Installation: Features a removable auxiliary switch block and secure screw terminals for straightforward and reliable wiring.
• Compact & Robust: The size S3 design is optimized for space-saving in control cabinets while maintaining durability and long-term operational stability.

Technical Specification

• Product Type: Power Contactor
• Product Number: 3RT2046-1NF34
• Rated Operational Current (AC-3e/AC-3): 95 A
• Rated Power (400 V): 45 kW
• Number of Poles: 3-pole
• Control Voltage: 83-155 V AC/DC, 50/60 Hz
• Auxiliary Contacts: 2 NO + 2 NC
• Coil Protection: Integrated varistor
• Terminal Type: Screw Terminal
• Size: S3
• Auxiliary Switch: Removable

Function

The Siemens 3RT2046-1NF34 power contactor serves as an electrically operated switch for a power circuit. Its primary function is to make or break a connection to a load, such as an electric motor, heating element, or lighting circuit. It can be controlled remotely by a low-power signal from a PLC, push button, or other control device.

The integrated varistor protects the coil from overvoltage, ensuring the contactor’s longevity and reliable switching performance. The auxiliary contacts provide feedback on the contactor’s status (open/closed) and can be used to interlock other circuits or activate indicator lights.

Application

This power contactor is ideal for a wide range of industrial and commercial applications, including:

• Motor control for pumps, fans, compressors, and conveyors.
• Controlling heating and cooling systems.
• Switching of lighting circuits.
• Automated machinery and process control.
• Integration into complex control panels and distribution boards.

For more information and a complete selection of industrial automation components, visit Turll.