Siemens SIRIUS 3RT1065-2AU36 Power Contactor, 265A, 132kW, 400V, 240-277V AC/DC Coil, Spring-Loaded Auxiliary Original Brand New

Overview

The Siemens SIRIUS 3RT1065-2AU36 is a high-performance, 3-pole power contactor from the robust SIRIUS 3RT1 series, designed for switching three-phase motors up to 132 kW at 400 V (AC-3e/AC-3). Engineered for reliability in industrial motor control applications, this contactor offers a high rated operational current of 265 A and features a wide-range, conventional AC/DC operating coil (Uc: 240-277 V). Its design emphasizes efficiency and flexibility with busbar connections for the main circuit and convenient, vibration-proof spring-loaded terminals for the control and auxiliary circuits.

Key Technical Specifications

• Product Number (MPN): 3RT1065-2AU36
• Contactor Size: S10 (SIRIUS 3RT1)
• Poles: 3-pole
• Rated Operational Current (Ie): 265 A (for AC-3e/AC-3 at 400 V)
• Rated Power (P): 132 kW (for AC-3e/AC-3 at 400 V)
• Control Supply Voltage (Uc): 240–277 V AC (50-60 Hz) / DC (Wide-range coil)
• Auxiliary Contacts: 2 NO (Normally Open) + 2 NC (Normally Closed)
• Main Circuit Connection: Busbar
• Control/Auxiliary Circuit Connection: Spring-loaded terminal
• Operating Mechanism: Conventional

Benefits & Features

• High Performance: Safely handles high currents and power loads up to 265 A and 132 kW, making it ideal for demanding industrial motor applications.
• Flexible Control: The wide-range 240-277 V AC/DC coil allows for simple integration into various control systems, reducing the number of coil variants needed for inventory.
• Reliable Connections: Spring-loaded terminals on the control and auxiliary circuits provide quick, secure, and maintenance-free wiring that resists vibration, ensuring long-term operational integrity.
• Optimized Main Wiring: Busbar connections for the main circuit simplify high-current wiring and integration into main power distribution systems.
• Integrated Auxiliary Contacts: Includes pre-assembled 2 NO + 2 NC auxiliary contacts for clear status signaling and complex control schemes.
• SIRIUS Quality: Part of the globally recognized Siemens SIRIUS modular system, ensuring high mechanical and electrical endurance for maximum uptime.

Function

The Siemens 3RT1065-2AU36 is primarily used as a switching device for controlling the start, stop, and reversing of three-phase electric motors. It connects and disconnects the motor from the power supply under normal operating conditions (AC-3) and enhanced safety standards (AC-3e). The integrated auxiliary contacts provide switching points for interlocking, signaling, and sequence control within the overall system.

Application

This high-capacity contactor is best suited for:

• Switching large industrial motors in production machinery.
• HVAC and pump applications.
• Motor control centers (MCCs).
• High-power resistive loads (AC-1).

For more Siemens SIRIUS products and a complete range of industrial automation components, visit our website at Turll.