Siemens 3RT2027-1AU00 Power Contactor 32A, 15kW, 240V AC, S0 Size Original Brand New

Overview: Siemens 3RT2027-1AU00 SIRIUS Power Contactor

The Siemens 3RT2027-1AU00 is a high-performance power contactor from the trusted SIRIUS family, designed for reliable switching of motors and other industrial loads. This 3-pole contactor is engineered for use in AC-3 and AC-3e applications, making it ideal for a wide range of motor control systems. With a nominal current rating of 32 A and a power rating of 15 kW at 400 V, it offers the capacity needed for demanding industrial environments.

This unit features a compact S0 frame size, allowing for efficient use of panel space. The 240 V AC, 50 Hz control voltage provides compatibility with standard industrial power supplies. For enhanced functionality, it is equipped with a 1 NO (Normally Open) and 1 NC (Normally Closed) integrated auxiliary contact, providing essential feedback and control signals for your automation systems. The reliable screw terminals ensure a secure and straightforward electrical connection, simplifying installation and maintenance.

Key Benefit

• Exceptional Durability: Built to Siemens’ high-quality standards, ensuring a long operational life and reduced maintenance.
• Space-Saving Design: The compact S0 size allows for high-density panel layouts, optimizing your control cabinet design.
• Reliable Performance: Engineered for AC-3e/AC-3 applications, guaranteeing efficient and safe switching of motor loads.
• Integrated Auxiliary Contacts: The built-in 1 NO + 1 NC contacts reduce the need for external components, simplifying your circuit design.
• Simple Installation: Screw terminals provide a robust and easy-to-use connection method, saving time during setup.

Functionality

The Siemens 3RT2027-1AU00 functions as an electromechanical switch. When the 240 V AC coil is energized, it generates a magnetic field that pulls the main contacts together, allowing power to flow to the connected load. When the coil is de-energized, springs return the contacts to their open state, interrupting the power. This makes it an essential component for starting, stopping, and reversing motors in a safe and controlled manner. The auxiliary contacts switch in tandem with the main contacts, providing a status signal (e.g., “contactor is on/off”) to a PLC or control system.

Technical Specification

• Product Number: Siemens 3RT2027-1AU00
• Product Type: Power Contactor
• Current Rating: 32 A (AC-3e/AC-3)
• Rated Power: 15 kW at 400 V
• Number of Poles: 3-pole
• Control Voltage: 240 V AC, 50 Hz
• Auxiliary Contacts: 1 NO + 1 NC
• Termination Type: Screw Terminal
• Size: S0
• Series: SIRIUS
• Applications: Motor control, switching of resistive loads, general industrial automation

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