Siemens 3RT7027-1AB05 Contactor 32A, 15kW, 400V, 24V AC Coil, Size S0, Screw Terminal Original Brand New

Overview

The Siemens 3RT7027-1AB05 is a high-performance power contactor designed for reliable switching of electrical loads. Part of the SIRIUS 3RT series, this contactor is engineered for industrial applications, providing safe and efficient control of motors, heaters, and other AC-3 category loads. With a rated operational current of 32A and a power rating of 15kW at 400V, it is a robust solution for medium-duty applications. Its compact Size S0 design makes it ideal for space-saving installations in control cabinets.

Key Features

• High Performance: Rated for AC-3 switching duty with a 32A current and 15kW power at 400V, ensuring reliable operation for motor control.
• Integrated Auxiliary Contacts: Features a built-in 1 NO (Normally Open) and 1 NC (Normally Closed) auxiliary contact, simplifying wiring for control circuits and status monitoring.
• Versatile Coil Voltage: Operates on a standard 24V AC 50Hz control supply voltage, making it compatible with a wide range of control systems.
• Robust Connection: Utilizes a secure screw terminal system for main and auxiliary circuits, ensuring a strong and reliable electrical connection.
• Compact Design: The Size S0 form factor allows for efficient use of space within electrical panels and enclosures.
• SIRIUS Modular System: Seamlessly integrates with other Siemens SIRIUS components, such as overload relays and circuit breakers, for a complete and scalable motor starter solution.

Benefit

• Enhanced Reliability: Built with high-quality materials and proven Siemens engineering, this contactor offers a long service life and high operational reliability.
• Simplified Installation: The clear terminal markings and screw connections allow for quick and easy wiring, reducing installation time and effort.
• Space Efficiency: Its compact design helps to save valuable space in control cabinets, which is crucial in modern industrial setups.
• Safety and Compliance: Manufactured to meet international standards, ensuring safe operation in industrial environments.
• Cost-Effective Solution: Provides a durable and efficient solution for power switching, minimizing maintenance needs and downtime.

Function

The Siemens 3RT7027-1AB05 functions as an electrically operated switch. When the 24V AC control voltage is applied to the coil, it generates a magnetic field that pulls the main contacts together. This action closes the circuit, allowing power to flow to the connected load (e.g., an electric motor). The integrated 1NO/1NC auxiliary contacts change state simultaneously, providing feedback to the control system. When the control voltage is removed, a spring forces the main and auxiliary contacts back to their original open state, disconnecting the load from the power supply.

Application

• Motor control for pumps, fans, conveyors, and compressors.
• Switching of heating elements and lighting systems.
• General-purpose switching in automation and machinery.
• Integration into motor starter combinations and control panels.

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