Siemens 3MT8080-1AQ04 Contactor AC-3, 80/37kW, 400V, 2NO2NC, 380 VAC, 50 Hz, 3-pole, size S3 Original Brand New

Overview

Siemens 3MT8080-1AQ04 is a robust and highly reliable AC-3 power contactor, engineered for demanding industrial motor control applications. This specific model is designed to handle significant power loads, making it an ideal choice for machinery requiring efficient and safe switching. With its durable construction and precise specifications, the 3MT8080-1AQ04 ensures long-term performance and operational stability in a wide range of industrial environment.

Key Features:

• AC-3 Rating: Specifically designed for AC-3 utilization category, suitable for switching squirrel-cage motors during operation.
• High Power Capacity: Rated for 80kW at 400V (AC-3) and 37kW at 400V (AC-3), providing ample capacity for heavy-duty application.
• Versatile Auxiliary Contacts: Equipped with 2 Normally Open (2NO) and 2 Normally Closed (2NC) auxiliary contacts, offering flexible control and feedback options for complex circuit.
• Coil Voltage: Operates on a 380 VAC, 50 Hz control voltage, ensuring compatibility with standard industrial power supplies in many regions.
• 3-Pole Design: Features a 3-pole configuration, essential for controlling three-phase electrical motors and other industrial load.
• Compact Size S3: Belongs to Siemens’ compact Size S3 series, balancing power handling with space-saving design.
• Reliable Screw Terminals: Utilizes secure screw terminals for easy and dependable wiring connections, facilitating straightforward installation and maintenance.
• Durable Construction: Built with high-quality materials to withstand the rigors of industrial environments, ensuring extended operational life.

Function

Siemens 3MT8080-1AQ04 contactor primarily functions as an electrically operated switch for a power circuit. Its core functions include:

• Motor Starting and Stopping: Provides the primary means to switch on and off three-phase AC motors in industrial machinery.
• Load Switching: Capable of safely making and breaking electrical connections for other resistive or inductive loads up to its specified capacity.
• Remote Control: Allows for remote activation and deactivation of connected equipment, enhancing operational safety and convenience.
• Auxiliary Signaling: The integrated 2NO and 2NC auxiliary contacts can be used for interlocking, status indication, and other control circuit functions, providing crucial feedback to PLCs or control system.
• Overload Protection Integration: Designed to seamlessly integrate with thermal overload relays (sold separately) to provide comprehensive motor protection.

Application

The versatility and robust nature of the Siemens 3MT8080-1AQ04 contactor make it suitable for a broad spectrum of industrial applications, including but not limited to:

• Pump Systems: Controlling high-power pumps in water treatment plants, irrigation, and industrial fluid transfer.
• Fan Systems: Managing large industrial fans for ventilation, cooling, and exhaust system.
• Conveyor Systems: Essential for starting and stopping motors in various material handling and conveyor belt operation.
• Machine Tools: Integrated into the control circuits of various machine tools for safe motor operation.
• HVAC Systems: Used in large-scale heating, ventilation, and air conditioning units for motor control.
• Compressors: Activating and deactivating motors in industrial air compressor.
• General Industrial Machinery: Providing reliable power switching for a wide array of manufacturing and processing equipment.

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