Siemens 3TB4110-0XU0 Contactor 240V AC 50Hz, 12A, 5.5kW, Size 0, Screw Connection Original Brand New

Overview

The Siemens 3TB4110-0XU0 contactor is a high-quality, reliable electrical switch designed for controlling various electrical loads. This specific model is a size 0 contactor with a screw connection for secure wiring. It’s engineered for use in circuits with an AC frequency of 50 Hz and a control voltage of 240V. This contactor is rated for 12A at 400V (AC-3 rating), making it suitable for applications up as high as 5.5kW. It also includes one normally open (1 NO) auxiliary contact, providing additional functionality for signaling and control circuits. 

Key Features & Benefit

• Reliable Performance: Built by Siemens, a leader in industrial automation, this contactor ensures long-term operational stability and safety.
• Efficient Control: Designed for AC 50 Hz circuits, it provides efficient switching for motors and other electrical loads.
• Versatile Application: With a 12A rating at 400V and a 5.5kW capacity, it’s ideal for a wide range of industrial and commercial applications.
• Secure Installation: The screw connection terminals offer a robust and reliable way to connect wires, minimizing the risk of loose connections.
• Integrated Auxiliary Contact: The built-in 1 NO auxiliary contact allows for easy integration into more complex control systems, enabling status indication or interlocking functions.
• Compact Size: As a size 0 contactor, it’s designed to save space within control panels and enclosures.

Function

The Siemens 3TB4110-0XU0 contactor functions as an electrically operated switch. When its coil receives a 240V AC signal, it creates a magnetic field that closes the main contacts. This action allows electrical current to flow to the connected load, such as a motor. When the voltage to the coil is removed, the magnetic field collapses, and the contacts spring open, disconnecting the power to the load. The auxiliary contact (1 NO) operates simultaneously with the main contacts, providing a secondary circuit for control or feedback purposes.

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