Siemens 3MT8080-1AV03 Contactor AC-3, 80/37kW, 400V, 1NO1NC, 400VAC, 50 Hz, 3-pole, size S3 Original Brand New

Overview

The Siemens 3MT8080-1AV03 is a robust and reliable 3-pole AC-3 contactor, meticulously engineered for demanding industrial applications. Designed to handle significant power loads, it’s rated for 80 kW at AC-3 (380-400V) and 37 kW at AC-4. This Size S3 contactor features a dependable 400VAC, 50 Hz coil and comes equipped with 1 normally open (NO) and 1 normally closed (NC) auxiliary contact, providing versatile control options. Its convenient screw terminals ensure secure and straightforward wiring. Ideal for controlling motors, heating elements, and other inductive loads, the 3MT8080-1AV03 embodies Siemens’ commitment to quality and performance in industrial automation.

Function

The Siemens 3MT8080-1AV03 contactor serves as an electrically operated switch, primarily designed for rapidly making and breaking an electrical power circuit. When the 400VAC, 50 Hz coil is energized, it creates an electromagnetic field that pulls the main contacts together, closing the circuit and allowing power to flow to the connected load (e.g., a motor). When the coil is de-energized, the contacts open, interrupting the power flow. The integrated 1NO and 1NC auxiliary contacts provide feedback or enable interlocking with other control circuits, enhancing safety and automation capabilities.

Key Features

• High Power Rating: Capable of handling significant loads with 80 kW (AC-3, 400V) and 37 kW (AC-4) ratings.
• 3-Pole Design: Ideal for three-phase motor control and other multi-phase applications.
• Versatile Auxiliary Contacts: Includes 1 Normally Open (NO) and 1 Normally Closed (NC) contact for flexible control and signaling.
• Standard Coil Voltage: Operates on 400VAC, 50 Hz, common in many industrial setups.
• Size S3: Compact yet powerful design for efficient panel space utilization.
• Screw Terminals: Ensures secure, reliable, and easy wiring connections.
• Robust Construction: Engineered by Siemens for durability and long-term performance in industrial environments.
• AC-3 Duty: Optimized for switching squirrel-cage motors during normal operation (making/breaking current up to 8x rated motor current).

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