Siemens 3RT1054-1AU36 Power Contactor 115A, 55kW, 3-Pole AC/DC Control Original Brand New

Overview

The Siemens 3RT1054-1AU36 power contactor is engineered for industrial applications requiring reliable switching of motors and electrical circuits. Built to deliver high efficiency and long service life, this 3-pole contactor can handle AC-3e/AC-3 loads up to 115 A and motor power up to 55 kW at 400 V. Its robust design ensures safe operation across AC and DC systems.

Key Benefit

• High Load Capacity: Supports AC-3e/AC-3 loads up to 115 A and 55 kW at 400 V.

• Versatile Operation: Works with AC (50-60 Hz) and DC systems with control voltage 240-277 V.

• Reliable Switching: Equipped with 2 NO + 2 NC auxiliary contacts for flexible control applications.

• Durable Design: Main circuit box terminals and screw terminals for control/auxiliary circuits ensure secure connections.

• Proven Siemens Quality: Ensures longevity, safety, and consistent performance in industrial environments.

Function

• Switching and controlling AC and DC loads in industrial circuits.

• Protecting and managing motors and other high-power electrical equipment.

• Integrating into automated control systems with auxiliary contact feedback.

• Enabling easy installation and maintenance with user-friendly terminals.

Technical Specification

• Model: Siemens 3RT1054-1AU36

• Type: Power Contactor

• Rated Current: AC-3e/AC-3 115 A

• Rated Power: 55 kW / 400 V

• Poles: 3

• Auxiliary Contacts: 2 NO + 2 NC

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

• Drive Type: Conventional

• Main Circuit Terminals: Box terminal

• Control & Auxiliary Circuit Terminals: Screw terminal

• Frequency: AC 50-60 Hz

Application

The 3RT1054-1AU36 is ideally suited for:

• Starting and stopping standard and high-efficiency three-phase motors.

• Controlling resistive loads in heating and lighting systems.

• Integration into complex machine controls, distribution boards, and motor control centers (MCCs).

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