Siemens 3RT2047-3NB30-0CC0 Power Contactor, 110A, 55kW, 3-Pole, 20–33V AC/DC Original Brand New

Overview

The Siemens 3RT2047-3NB30-0CC0 is a high-performance 3-pole power contactor designed for reliable motor and power switching applications. Built to deliver superior efficiency and durability, this AC-3e/AC-3 contactor supports up to 110 A and 55 kW at 400 V, making it ideal for industrial automation, control systems, and heavy-duty electrical installations.

This model features an integrated varistor for surge protection, ensuring extended component life and enhanced operational safety. With spring-loaded terminals for control and auxiliary circuits, it enables easy installation and maintenance, reducing downtime and improving overall system reliability.

Key Features & Functions

• Model: Siemens 3RT2047-3NB30-0CC0

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

• Power Rating: 55 kW / 400 V

• Poles: 3-pole configuration

• Coil Voltage: 20–33 V AC/DC, 50/60 Hz

• Integrated Varistor: Provides surge suppression for protection and longevity

• Auxiliary Contacts: 1 NO + 1 NC for control flexibility

• Terminals:

  • Main circuit: Screw terminal

  • Control/auxiliary circuit: Spring-loaded terminal

• Size: S3

• Communication-Capable: Enables integration with modern control and monitoring systems

Benefit

• High Efficiency: Handles large electrical loads with minimal energy loss
• Long Service Life: Integrated varistor protects against voltage surges
• Easy Installation: Spring-loaded terminals simplify wiring
• Reliable Performance: Engineered for demanding industrial environments
• Communication-Ready: Ideal for smart automation and control setups
• Compact Design: Saves space in control panels while delivering high performance

Application

• Industrial motor control and protection

• HVAC and pumping systems

• Conveyor systems and material handling

• Automated production lines

• Smart industrial control panels

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