Siemens 3RT1075-6AU36 Power Contactor 400A, 200kW, 3-Pole, AC/DC Control Original Brand New

Overview

The Siemens SIRIUS 3RT1075-6AU36 is a robust, high-performance 3-pole power contactor designed for switching motors and other resistive loads in demanding industrial applications. As part of the globally recognized SIRIUS line, this contactor ensures reliable operation and a long electrical service life.

It is rated for a substantial 400 A operational current (AC-3e/AC-3) and can handle motor power up to 200 kW at 400 V. The versatile control circuit accepts a wide voltage range of 240-277 V AC (50-60 Hz) / DC, featuring a conventional drive mechanism. The main circuit connections are optimized for high-current systems using busbar technology, while the control and auxiliary circuits utilize secure screw terminals.

Key Features & Functions

• Rated Current: 400 A (AC-3/AC-3e)

• Power Handling: Up to 200 kW at 400 V AC

• Control Voltage (Uc): 240–277 V AC/DC

• Poles: 3-pole main contacts

• Auxiliary Contacts: 2 NO + 2 NC for versatile signaling and control

• Drive Type: Conventional for reliable operation

• Connection Type: Main circuit via busbar, control and auxiliary circuit via screw terminal

• Frequency Range: 50–60 Hz for AC applications

• Durability: High mechanical and electrical endurance for industrial use

Benefit

1. Reliable Performance: Ensures stable switching in high-power industrial applications.

2. Versatile Integration: Compatible with AC and DC control circuits.

3. High Efficiency: Reduces downtime and energy loss in motor control applications.

4. Durable Design: Built to withstand demanding industrial environments.

5. Easy Installation: Screw terminals and busbar connections simplify wiring.

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