Siemens 3RT1056-6AR36 Power Contactor AC-3e/AC-3, 185 A, 90 kW, 3-Pole, 440–480 V DC Coil Original Brand New

Overview

The Siemens 3RT1056-6AR36 is a high-performance industrial power contactor engineered for demanding motor-control applications. Designed for AC-3e/AC-3 operations up to 185 A and 90 kW at 400 V, this 3-pole contactor ensures reliable switching and control of electric motors in heavy-duty environments. With a 440–480 V DC control voltage, integrated 2 NO + 2 NC auxiliary contacts, and a robust busbar connection design, it delivers outstanding durability, efficiency, and versatility for industrial panels and control systems.

Benefit

• High Switching Capacity – Supports AC-3/AC-3e motor loads up to 185 A for reliable performance.

• Heavy-Duty Construction – Engineered for long service life in demanding industrial settings.

• Flexible Integration – Busbar connection on the main circuit simplifies installation and enhances panel configuration.

• Reliable Control Voltage – Operates with stable 440–480 V DC coil for consistent switching.

• Enhanced Monitoring – Includes 2 NO + 2 NC auxiliary contacts for feedback, signaling, and control logic.

Electrical Performance

• Operational Current: 185 A (AC-3e/AC-3)

• Motor Rating: 90 kW @ 400 V AC

• Frequency: 50–60 Hz

• Control Voltage (Uc): 440–480 V DC

• Poles: 3-pole main contacts

Mechanical & Design Features

• Main Circuit: Busbar connection for safe, secure, and efficient power distribution

• Auxiliary Contacts: 2 Normally Open (NO) + 2 Normally Closed (NC)

• Control/Aux Circuit Terminals: Screw terminals for easy wiring

• Drive Type: Conventional electromagnetic drive

Application

• Motor starters

• Industrial automation systems

• Conveyor and pump control

• HVAC and ventilation systems

• Heavy-duty manufacturing machinery

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