Siemens SIRIUS 3RT1066-6AP36 Power Contactor 300A, 160 kW, AC/DC Coil Original Brand New

Overview

The Siemens 3RT1066-6AP36 is a robust and highly reliable power contactor from the renowned SIRIUS series, engineered for heavy-duty industrial applications. This 3-pole contactor is designed to handle demanding loads with an AC-3e/AC-3 rating of 300 A and a maximum motor power of 160 kW at 400 V. Its versatile AC/DC control voltage (Uc​) of 220-240 V ensures broad compatibility with various control systems, providing flexibility and efficiency.

Featuring a conventional drive and a durable design, the 3RT1066-6AP36 is built for longevity and consistent performance. The main circuit uses a convenient busbar connection, streamlining installation and providing a secure, high-current connection. The control and auxiliary circuits are equipped with reliable screw terminals, making wiring straightforward and secure. With integrated 2 NO + 2 NC auxiliary contacts, this contactor offers enhanced functionality for signaling and interlocking applications, making it a cornerstone component for motor control and switching circuits.

Key Features & Benefit

• High Power Handling: Rated for 300 A (AC-3e/AC-3) and up to 160 kW at 400 V, making it suitable for large motor control and high-current switching tasks.
• Flexible Control Voltage: The wide AC (50-60 Hz) / DC control voltage range of 220-240 V allows for seamless integration into diverse control panel setups.
• Robust & Reliable: As part of the Siemens SIRIUS family, this contactor is built to the highest quality standards, ensuring a long operational life and minimal maintenance.
• Integrated Auxiliary Contacts: Comes standard with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, simplifying circuit design for feedback and control logic.
• Efficient Connection Methods:
  • Busbar Main Circuit: Provides a high-integrity, low-resistance connection for the main power circuit.
  • Screw Terminals: Ensures a secure and reliable connection for control and auxiliary wiring.
• Compact Design: Despite its high power rating, the contactor maintains a space-saving design, allowing for efficient use of panel space.
• Conventional Drive: Offers a proven and reliable switching mechanism, ensuring consistent performance.

Function

The Siemens 3RT1066-6AP36 Power Contactor primarily serves to switch high-current circuits for:

• Motor Control: Starting, stopping, and reversing large three-phase motors.
• Load Switching: Controlling and switching high-power resistive and inductive loads.
• Industrial Automation: Acting as the primary power element in control circuits for machinery, pumps, fans, and conveyor systems.
• Safety Interlocking: Using the integrated auxiliary contacts for safety circuits and interlocking logic.

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