Siemens 3TB4222-0XD2 Contactor 42V AC, 16A, 7.5 kW, 1 NO + 1 NC Auxiliary Contacts, Screw Connection Original Brand New

Overview

The Siemens 3TB4222-0XD2 is a robust and reliable contactor designed for controlling electrical circuits, particularly in motor control applications. This model is engineered for exceptional performance in alternating current (AC) systems operating at 50/60 Hz. With a coil voltage of 42V AC, it is a versatile component for various industrial and commercial settings. The contactor is rated for 16A at 400V AC in a 7.5 kW AC-3 application, making it suitable for standard motor starting and switching tasks. It features one normally open (1 NO) and one normally closed (1 NC) auxiliary contact, providing essential feedback and interlocking capabilities. The size 1 frame ensures a compact yet durable design, while the secure screw connections guarantee a reliable and straightforward installation.

Benefit

• Reliable Performance: Siemens is a globally recognized leader in industrial automation, and the 3TB4222-0XD2 contactor is built to their high standards, ensuring long-term reliability and operational stability.
• Versatile Application: The 42V AC coil voltage and 16A rating make this contactor suitable for a wide range of motor control and power switching applications.
• Enhanced Safety and Control: The integrated 1 NO + 1 NC auxiliary contacts offer additional functionality for safety circuits, status indication, and complex control systems.
• Easy and Secure Installation: The robust screw connections provide a secure and reliable electrical connection, simplifying the wiring process and minimizing maintenance.
• Compact Design: As a size 1 contactor, it offers a space-saving solution without compromising on power or functionality, ideal for crowded control panels.

Function

The primary function of the Siemens 3TB4222-0XD2 contactor is to switch a power circuit on and off. When the 42V AC coil is energized, it creates a magnetic field that closes the main contacts, allowing power to flow to the connected load (e.g., an electric motor). Simultaneously, the auxiliary contacts change state—the NO contact closes and the NC contact opens. This change of state can be used to signal the motor’s status to a PLC or control system, or to interlock other devices for safety purposes. De-energizing the coil causes the contacts to revert to their original state, safely disconnecting the power.

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