Siemens 3TY7403-0AV0 Magnet Coil 400V/380V AC 50Hz, 480V/460V 60Hz Replacement for 3TY4803-0AV0 Original Brand New

Overview

The Siemens 3TY7403-0AV0 is a genuine and high-quality magnet coil designed for a wide range of Siemens contactors and auxiliary contact blocks. This essential component is crucial for the proper operation of your control circuits, ensuring reliable switching and power control. As a direct replacement for the legacy 3TY4803-0AV0, this coil provides a seamless upgrade path, maintaining the integrity and performance of your existing Siemens equipment. Built to Siemens’ rigorous standards, the 3TY7403-0AV0 guarantees long-lasting durability and consistent performance in demanding industrial environments.

Key Features & Benefit

• Authentic Siemens Quality: Manufactured by Siemens, ensuring perfect compatibility, superior performance, and long-term reliability.
• Broad Contactor Compatibility: Designed for use with a wide range of Siemens contactors, including the popular 3TF30-33, 3TF40-43, 3TH3, 3TH4, 3TB40-44, 3TC44, and 3TH8 series.
• Dual Voltage and Frequency Support: Operates flawlessly on both 400V/380V AC at 50Hz and 480V/460V AC at 60Hz, making it suitable for global applications.
• Direct Replacement: Serves as a perfect drop-in replacement for the discontinued Siemens 3TY4803-0AV0, simplifying maintenance and repair processes.
• Reliable Performance: Ensures consistent magnetic force to activate and deactivate the contactor’s main contacts, preventing operational errors and minimizing downtime.
• Easy Installation: Engineered for quick and straightforward replacement, reducing maintenance time and labor costs.
• Durable Construction: Built with high-quality materials to withstand the rigors of industrial use, ensuring a long service life.

Function

The magnet coil is the heart of an AC contactor. When energized with the specified voltage (400V/380V AC or 480V/460V AC), it generates a magnetic field. This field pulls the armature of the contactor, closing the main contacts and allowing power to flow through to the connected load. When the voltage to the coil is removed, the magnetic field collapses, and a spring forces the armature back to its original position, opening the contacts and interrupting the power supply. The Siemens 3TY7403-0AV0 ensures this critical function operates with precision and reliability.

Technical Specification

• Product Number: 3TY7403-0AV0
• Manufacturer: Siemens
• Rated Voltage (AC, 50Hz): 400V / 380V
• Rated Voltage (AC, 60Hz): 480V / 460V
• Compatible Contactor Series: 3TF30-33, 3TF40-43, 3TH3, 3TH4, 3TB40-44, 3TC44, 3TH8
• Replacement For: 3TY4803-0AV0
• Type: Magnet Coil

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