Siemens 3MT8080-1AG20 Contactor AC-3, 80/37kW, 400V, 110 VAC, 50/60 Hz, 3-pole, size S3 Original Brand New

Overview: Siemens 3MT8080-1AG20 Industrial Power Contactor

The Siemens 3MT8080-1AG20 is a high-performance AC-3 contactor specifically engineered for reliable and efficient switching of motors and other inductive loads in diverse industrial and commercial applications. This robust 3-pole contactor, sized S3, is an essential component for effective motor control circuits, ensuring stable and safe operation. Designed for 400V main circuits, it can efficiently handle currents up to 80 Amperes and power ratings of 37kW. A key feature of this model is its 110V AC control coil, making the 3MT8080-1AG20 an ideal choice for systems requiring this common control voltage, ensuring seamless integration into various control panels.

Key Features & Specification

• Model: Siemens 3MT8080-1AG20
• Contactor Type: AC-3 (optimized for making, breaking, and occasional starting of squirrel-cage motors)
• Rated Current: 80 Amperes (A)
• Rated Power: 37 Kilowatts (kW) at 400V
• Rated Operational Voltage (Main Circuit): 400 Volts (V) AC
• Control Coil Voltage: 110 VAC (50/60 Hz) – compatible with widely used industrial control voltages.
• Poles: 3-pole configuration for three-phase motor applications.
• Size: S3 (Standard industrial size for this current range)
• Terminals: Secure screw terminal connections for straightforward and reliable wiring.
• Durability: Manufactured by Siemens, ensuring long service life and high operational reliability in demanding industrial environments.

Function & Application

The Siemens 3MT8080-1AG20 Contactor serves as a vital electromagnetic switch, enabling the remote and automated control of power flow to electrical equipment. Its primary function is to safely and efficiently establish or interrupt electrical connections in main power circuits, typically for starting, stopping, and protecting industrial motors, heating elements, and lighting systems. The specific 110V AC control coil allows for easy integration into automated control systems that utilize this voltage, enhancing both operational safety and overall system efficiency.

Common applications for this 80A 400V contactor include:

• Motor control in manufacturing and processing plants.
• Control of pumps, fans, and compressors in industrial facilities.
• HVAC systems and large ventilation equipment.
• Conveyor belt systems in material handling.
• Industrial lighting circuits and power distribution boards.
• Integration into automated machinery and control panels where 110V AC control is required.

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