Siemens 3RT1066-6LA06 Power Contactor 3-Pole, 300A, 160kW, AC-3, 2 NO + 2 NC Original Brand New

Overview

The Siemens 3RT1066-6LA06 is a high-performance power contactor designed for heavy-duty industrial applications. Rated at 300 A and capable of handling 160 kW / 400 V, this 3-pole contactor ensures reliable operation in AC-3 motor control circuits. It comes without an operating mechanism, and features 2 NO + 2 NC auxiliary contacts. Its main circuit uses busbar connections, while the control and auxiliary circuits utilize screw terminals, providing secure and flexible installation.

Key Benefits

• High Capacity: Supports up to 300 A and 160 kW at 400 V, suitable for large motors and industrial machinery.

• Reliable Performance: AC-3e/AC-3 rated for frequent switching and long service life.

• Flexible Installation: Main circuit busbar and screw terminal connections for easy integration.

• Enhanced Control: 2 NO + 2 NC auxiliary contacts allow for versatile control and signaling applications.

• Durable Design: Siemens engineering ensures safety, longevity, and efficiency in demanding environments.

Functions & Features

• 3-pole power contactor for industrial motor control

• AC-3e/AC-3 rated switching

• Auxiliary contacts: 2 NO + 2 NC

• Main circuit connection: busbar

• Control and auxiliary circuit connection: screw terminal

• Without operating mechanism, adaptable to multiple applications

Application

The Siemens 3RT1066-6LA06 power contactor is primarily used for switching electric motors (AC-3 duty) and other high-current resistive loads (AC-1 duty) in demanding industrial environments.

Typical Applications Include:

• Switching and control of high-power motors (e.g., pumps, fans, compressors)
• Integration into complex motor starter combinations (direct-on-line, reversing)
• Use in load feeders and control panels for heavy machinery

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