Siemens 3RT7045-1AN20 Contactor AC-3 80kW/37kW 400V 220V AC, 3-Pole, Size S3, Screw Terminal Original Brand New

Overview

The Siemens 3RT7045-1AN20 is a high-performance AC-3 contactor engineered for robust motor switching applications. Designed with the demanding needs of industrial environments in mind, this 3-pole contactor is rated for a motor power of 80 kW at 400V (AC-3) and a rated operational current of 160 A. Its compact Size S3 design and reliable screw terminals make it a versatile and easy-to-integrate component for a wide range of control systems. With its durable construction and 220V AC coil, the 3RT7045-1AN20 ensures long-lasting, dependable performance.

Key Features & Benefit

• High Power Rating: Handles a rated motor power of 80 kW at 400V AC-3, making it suitable for heavy-duty industrial machinery.
• Reliable Performance: Built to the highest Siemens quality standards, ensuring long-term operational stability and reduced downtime.
• Versatile Application: Ideal for switching motors, resistive loads, and other power circuits in various industrial settings.
• Space-Saving Design: The compact Size S3 form factor allows for efficient use of space within control cabinets and electrical panels.
• Easy Installation: Features robust screw terminals for secure and straightforward wiring.
• Global Compatibility: Operates with a 220V AC coil at 50/60 Hz, ensuring compatibility with common power systems worldwide.
• Safety and Durability: Designed for high endurance and includes features that enhance operational safety.

Function

The Siemens 3RT7045-1AN20 functions as a remote-controlled switch for high-power electrical circuits. Its primary role is to connect or disconnect a motor from its power supply. When the 220V AC coil is energized, it generates a magnetic field that pulls the contactor’s main contacts together, allowing current to flow to the motor. When the coil is de-energized, the contacts open, safely cutting off the power. This functionality is crucial for starting, stopping, and controlling the operation of large machinery, pumps, fans, and conveyor systems.

Technical Specifications

• Product Type: Contactor
• Product Number: 3RT7045-1AN20
• Main Circuit:
  • Rated Operational Current (AC-3): 160 A
  • Rated Motor Power (AC-3): 80 kW at 400V
  • Number of Poles: 3
• Control Circuit:
  • Coil Voltage: 220V AC, 50/60 Hz
• Connection Type: Screw Terminal
• Size: S3
• Short Description: Contactor AC-3 80/37kW 400V 220 VAC, 50/60 Hz 3-pole, Size S3 Screw terminal

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