Siemens 3MT8120-1AM04 Contactor AC-3, 120A/55kW,400V, 2NO2NC, 220 VAC, 50 Hz, 3-pole, size S6 Original Brand New

Overview

The Siemens 3MT8120-1AM04 is a robust and high-performance AC-3 power contactor, engineered for demanding industrial application. With a rated current of 120 Amperes and a power handling capacity of 55 kilowatt at 400 Volts, this 3-pole contactor is ideal for controlling powerful motor and resistive load. Its compact Size S6 design ensures efficient space utilization, while the reliable screw terminal connections simplify installation and maintenance. Operating on a 220 VAC, 50 Hz control voltage, the 3MT8120-1AM04 also features a versatile 2 Normally Open (NO) and 2 Normally Closed (NC) auxiliary contact configuration, providing flexible control options for various circuit.

Key Features & Benefit

• High Power Rating: Handles up to 120A (AC-3) and 55kW at 400V, suitable for heavy-duty motor control.
• Versatile Auxiliary Contacts: Equipped with 2 NO + 2 NC auxiliary contacts for enhanced control circuit flexibility and signaling.
• Robust & Reliable: Siemens engineering ensures long-lasting performance and operational stability in industrial environment.
• Efficient Size S6 Design: Optimizes panel space without compromising on power capability.
• Easy Installation: Features secure screw terminals for straightforward and reliable wiring connection.
• Standard Control Voltage: Operates on a common 220 VAC, 50 Hz supply, simplifying integration into existing system.
• 3-Pole Configuration: Ideal for switching three-phase AC load.

Function

The Siemens 3MT8120-1AM04 contactor primarily functions as an electrically operated switch for controlling power circuits. It is specifically designed for:

• Motor Control: Safely starting, stopping, and reversing AC motors in applications like pump, fan, compressor, and conveyor.
• Resistive Load Switching: Managing high-current resistive loads such as heating elements and lighting system.
• Circuit Isolation: Providing a means to safely isolate power to specific sections of a circuit for maintenance or emergency shutdown.
• Automation Integration: Its auxiliary contacts allow for seamless integration into complex control systems, PLCs, and automation schemes for feedback and interlocking.

Application

This Siemens 3MT8120-1AM04 contactor is widely used in:

• Industrial automation and control panel
• HVAC systems (heating, ventilation, air conditioning)
• Pump stations and water treatment facilities
• Manufacturing and processing plant
• Material handling equipment
• Machine tool
• Conveyor system
• Building management system

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