Siemens 3RT1064-6AT36 SIRIUS Power Contactor, 225A, 110kW, 575-600V AC/DC Coil Original Brand New

Overview

The Siemens 3RT1064-6AT36 is a robust, high-performance SIRIUS 3RT1 power contactor specifically designed for switching motors up to 110 kW (at 400 V AC-3). This reliable, 3-pole industrial control component features a powerful 225 A operational current rating and a flexible conventional drive with a wide-range 575-600 V AC/DC control voltage (Uc​). Ideal for heavy-duty applications in industrial automation, the 3RT1064-6AT36 ensures safe and efficient control of your electrical loads.

Key Specification

• Product Type: Power Contactor (SIRIUS 3RT1)
• Siemens Part Number: 3RT1064-6AT36
• Poles: 3-pole
• Operating Current (AC-3e/AC-3): 225 A (at 400 V)
• Rated Power: 110 kW (at 400 V)
• Control Supply Voltage (Uc​): 575-600 V AC (50-60 Hz) / DC
• Auxiliary Contacts: Integrated 2 NO (Normally Open) + 2 NC (Normally Closed)
• Drive Type: Conventional
• Main Circuit Connection: Busbar
• Control/Auxiliary Circuit Connection: Screw Terminal

Benefit

• Exceptional Power Handling: Switch large motor loads up to 110 kW efficiently and reliably.
• Universal Control Flexibility: The 575-600V AC/DC coil simplifies inventory and maintenance, accommodating both AC and DC control systems within the high-voltage range.
• Integrated Monitoring: Built-in 2 NO + 2 NC auxiliary contacts provide immediate status feedback for interlocks and control circuits, saving on external components.
• Robust Connection: The main circuit busbar connection ensures a secure, high-current path and quick installation in control cabinets.
• Long-Term Reliability: Part of the proven Siemens SIRIUS family, designed for high operational lifespan and performance in demanding environments.

Function

The Siemens 3RT1064-6AT36 power contactor acts as an electrically controlled switch for an electric power circuit. Its primary function is to:

1. Switch Motors: Safely and remotely connect or disconnect a high-power three-phase motor to its power source (e.g., in Direct-On-Line starting).
2. Control Large Loads: Handle other resistive or inductive loads requiring a high switching capacity.
3. Provide Feedback: The auxiliary contacts signal the contactor's current position (open or closed) to the wider control system (e.g., PLC or other control logic).

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