Siemens 3TB4422-0XR1 Contactor, 400V 32A, Size 2 with 1NO+1NC Aux Contact Original Brand New

Overview

The Siemens 3TB4422-0XR1 is a robust and reliable AC contactor designed for industrial applications. It’s built to control motors and other resistive loads efficiently. This specific model operates at a 60 Hz frequency with a 440 V AC coil voltage. It’s rated for a 400V AC3 power of 15 kW and a 32 A current, making it suitable for a wide range of machinery. The Size 2 classification indicates its physical dimensions and power handling capacity. This contactor also includes 1 normally open (NO) and 1 normally closed (NC) auxiliary contacts, which are crucial for feedback and interlocking circuits. The screw connection terminals ensure secure and reliable wiring.

Key Benefits

• Reliable Performance: Siemens is a leader in industrial automation, and this contactor offers long-term durability and consistent performance.
• Versatile Application: The 32 A, 15 kW rating makes it ideal for a variety of motor control and power switching tasks.
• Integrated Auxiliary Contacts: The built-in 1NO+1NC contacts simplify wiring and integration into control systems.
• Secure Connections: The screw connection terminals provide a strong, stable connection, reducing the risk of loose wires.

Functionality

The Siemens 3TB4422-0XR1 contactor acts as an electrically controlled switch. When the 440 V AC coil is energized, it creates a magnetic field that closes the main power contacts, allowing current to flow to the load. When the coil is de-energized, the contacts open, interrupting the power. The auxiliary contacts switch simultaneously, providing status feedback to a control system or enabling interlocking logic.

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