Siemens 3MT8400-1AG04 Contactor AC-3,400A/200kW,400V, 2NO2NC, 36 VAC, 50 Hz, 3-pole, size S12 Original Brand New

Overview

The Siemens 3MT8400-1AG04 is a robust and high-performance 3-pole AC-3 contactor, meticulously engineered for heavy-duty industrial applications. Designed to safely switch and control electrical loads up to 400A (200kW at 400V), this Size S12 contactor offers exceptional reliability and durability. Its versatile 2NO+2NC auxiliary contact configuration and 36 VAC, 50 Hz coil voltage make it ideal for integration into various control circuits requiring precise power management. With its secure screw terminals, installation and maintenance are straightforward, ensuring efficient operation in demanding environments.

Function

The primary function of the Siemens 3MT8400-1AG04 contactor is to establish and interrupt electrical connections in three-phase AC circuits. It acts as an electrically controlled switch, allowing for the remote or automated control of high-power equipment such as motors, heating elements, and lighting systems. The 36 VAC, 50 Hz coil, when energized, creates a magnetic field that pulls the main contacts closed, enabling current flow. When de-energized, springs open the contacts, breaking the circuit. The integrated 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts provide crucial feedback and interlocking capabilities for complex control schemes.

Key Features

• High Current Rating: Rated for 400A (AC-3) and capable of handling up to 200kW at 400V, suitable for large industrial loads.
• 3-Pole Configuration: Designed for switching three-phase AC power, essential for most industrial motor and power distribution applications.
• Auxiliary Contacts (2NO + 2NC): Provides flexible control options and signaling for interlocking, status indication, and advanced automation.
• 36 VAC, 50 Hz Coil: Standard coil voltage for specific control circuit designs, ensuring compatibility and reliable operation.
• Size S12: Denotes a robust and compact design for its power rating, optimizing panel space.
• Screw Terminals: Ensures secure and reliable electrical connections, simplifying wiring and maintenance.
• Siemens Quality: Manufactured to high-quality standards, guaranteeing long-term reliability and performance in demanding industrial environments.
• AC-3 Utilization Category: Optimized for switching squirrel-cage motors during operation, a common application in industrial machinery.

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