Siemens 3TB4001-0XB0 Contactor AC 24V, 9A, 4kW, Size 0, Screw Terminal Original Brand New

Overview

The Siemens 3TB4001-0XB0 is a robust and reliable contactor designed for controlling electric motors and other loads in various industrial applications. This specific model operates with an AC 24V coil at a frequency of 50 Hz. It is rated for an AC-3 current of 9 A at 400 V, with a corresponding motor power rating of 4 kW. The Size 0 designation indicates its compact dimensions, making it suitable for installations with limited space. It features screw terminals for secure and easy wiring and includes one normally closed (NC) auxiliary contact for control and signaling purposes.

Key Features

• Operating Voltage: AC 24V, 50 Hz
• Current Rating (AC-3): 9 A at 400 V
• Motor Power: 4 kW
• Auxiliary Contacts: 1 NC (Normally Closed)
• Size: Size 0
• Terminals: Screw connection
• Compliance: IEC/EN 60947-4-1

Benefit

• Reliable Performance: Manufactured by Siemens, a leader in industrial automation, ensuring high quality and durability.
• Space-Saving Design: Its compact Size 0 form factor allows for efficient use of panel space.
• Easy Installation: The screw terminals provide a straightforward and secure method for wiring, reducing installation time.
• Enhanced Control: The integrated NC auxiliary contact offers additional functionality for control circuits and status indication.
• Broad Application: Ideal for a variety of uses, including motor control, lighting systems, and heating circuits.

Function

A contactor is an electromagnetically operated switch used for remotely controlling a power circuit. The Siemens 3TB4001-0XB0 operates by receiving a low-voltage signal (24V AC) to its coil, which in turn closes the main power contacts, allowing a high-current load (up to 9 A) to be energized. When the coil signal is removed, a spring forces the contacts open, de-energizing the load. The built-in NC auxiliary contact provides a signal that is closed when the main contacts are open and opens when the main contacts are closed, which is often used in safety interlocks or control logic.