Siemens 3TB4422-0XD0 Contactor 32A, 15kW, 42V AC Coil, 1NO+1NC Aux, Screw Terminal Original Brand New

Overview

The Siemens 3TB4422-0XD0 is a high-performance, robust contactor designed for controlling electric motors and other resistive loads. It operates on a 42V AC, 50 Hz control circuit and is rated for a maximum current of 32A at 400V for AC-3 applications, handling motors up to 15 kW. This Size 2 contactor is built for durability and reliability in demanding industrial environments. It comes equipped with 1 normally open (NO) and 1 normally closed (NC) auxiliary contacts for signaling and interlocking purposes, and features screw terminals for secure and straightforward wiring.

Key Benefit

High Reliability: Engineered by Siemens, a global leader in industrial automation, for long-lasting performance.

• Versatile Application: Ideal for controlling a wide range of motor and resistive loads up to 15 kW.
• Integrated Auxiliary Contacts: The built-in 1NO+1NC contacts simplify circuit design for monitoring and control.
• Easy Installation: Features standard screw connections for quick and reliable wiring without special tools.
• Compact Size: The Size 2 design provides a balance of power and space-efficiency for control panels.

Technical Function

The 3TB4422-0XD0 contactor serves as an electromagnetic switch. When the 42V AC, 50 Hz control coil is energized, it closes the main power contacts, allowing current to flow to the connected load. The integrated auxiliary contacts change state simultaneously with the main contacts, providing status feedback to a control system, PLC, or for interlocking other circuits. The contactor’s robust design ensures it can handle frequent switching cycles, making it perfect for motor starters and similar applications.

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