Siemens 3RT7027-1AC25 Contactor 32A, 15kW, 400V AC, 24V Coil, S0 Size, Screw Terminal Original Brand New

Product Overview

The Siemens 3RT7027-1AC25 is a high-performance 3-pole contactor designed for efficient and reliable switching of motors and other electrical loads. Part of the SIRIUS 3RT series, this contactor is engineered for demanding industrial environments. It is rated for AC-3 applications up to 32A at 400V, providing a robust and dependable solution for motor control.

With its compact S0 size, it saves valuable space within control cabinets while offering superior performance. The integrated 1 normally open (NO) and 1 normally closed (NC) auxiliary contacts provide enhanced flexibility for control circuits. The device is operated by a 24V AC coil, making it compatible with standard low-voltage control systems. Installation is simple and secure thanks to the reliable screw terminals.

Key Features & Benefit

• High Performance: Rated for AC-3 applications up to 32A (at 400V), suitable for a wide range of motor control tasks.
• Energy Efficient: Designed for low power consumption, reducing operational costs.
• Space-Saving Design: The compact S0 size allows for high-density installation in control panels.
• Versatile Control: Features a 24V AC coil, compatible with common industrial control voltages.
• Integrated Auxiliary Contacts: Includes 1 NO and 1 NC auxiliary contacts for seamless integration into control and monitoring circuits.
• Secure Connection: Equipped with robust screw terminals for a reliable and durable connection.
• Durable and Reliable: Built to Siemens’ rigorous quality standards, ensuring a long service life and high operational reliability.
• Easy to Integrate: Part of the comprehensive SIRIUS modular system, allowing for easy expansion with auxiliary switches, overload relays, and other accessories.

Function

The Siemens 3RT7027-1AC25 contactor functions as an electrically operated switch. When the 24V AC control voltage is applied to the coil terminals (A1-A2), a magnetic field is generated that pulls the main contacts together. This action closes the circuit, allowing power to flow to the connected load (e.g., an electric motor). When the control voltage is removed, a spring forces the contacts open, interrupting the power supply.

The integrated auxiliary contacts switch simultaneously with the main contacts. The normally open (NO) contact closes when the contactor is energized, while the normally closed (NC) contact opens. This feature is crucial for creating interlocking circuits, providing feedback to PLCs or control systems, and building complex automation logic.

Technical Specification

• Product Designation: Contactor
• Product Type: 3RT70
• Operating Voltage (Rated): 400 V
• Rated Current (AC-3): 32 A
• Motor Power (AC-3): 15 kW (at 400 V)
• Coil Voltage: 24 V AC, 50/60 Hz
• Auxiliary Contacts: 1 NO + 1 NC
• Size: S0
• Connection Type: Screw Terminal
• Series: SIRIUS
• Manufacturer Part Number: 3RT7027-1AC25

Application

The Siemens 3RT7027-1AC25 contactor is ideal for a wide range of industrial and commercial applications, including:

• Motor Control: Switching and controlling motors in pumps, fans, conveyors, and machine tools.
• Power Switching: Acting as a main switch for heating systems, lighting circuits, and capacitor banks.
• Industrial Automation: Used as a key component in control panels and machinery for automated processes.
• HVAC Systems: Controlling compressors and other high-current loads in heating, ventilation, and air conditioning systems.

For more our products visit turll