Siemens 3TB4211-0XC1 Contactor, 24V AC, 16A, 7.5kW, 1 NC Auxiliary, Size 1 Original Brand New

Overview 

The Siemens 3TB4211-0XC1 is a high-performance 3-pole contactor designed for reliable switching of AC loads, particularly in motor control applications. This model is part of the robust Siemens 3TB4 series, known for its durability and long operational life. With its compact Size 1 frame and a 24V AC coil, it’s an excellent choice for a variety of industrial control systems.

Key Features & Specifications

• Product Number: 3TB4211-0XC1
• Type: 3-Pole AC Contactor
• Coil Voltage: 24V AC, 60 Hz
• Rated Operational Current ($I\_e$): 16 A (at 400V AC3)
• Rated Operational Power ($P\_e$): 7.5 kW (at 400V AC3)
• Auxiliary Contacts: 1 Normally Closed (NC)
• Terminal Type: Screw Connection
• Size: 1

Benefit

• Reliable Performance: Siemens engineering ensures consistent and long-lasting operation, minimizing downtime and maintenance costs.
• Efficient Motor Control: Perfectly suited for switching motors up to 7.5 kW, providing a critical component for industrial machinery.
• Versatile Integration: The 24V AC control voltage is a standard for many control systems, allowing for easy integration into new or existing panels.
• Safety and Protection: The integrated 1 NC auxiliary contact provides feedback and interlocking functionality, enhancing the safety and control logic of your system.
• Easy Installation: Screw terminals provide a secure and straightforward method for wiring, reducing installation time and effort.

Function

The Siemens 3TB4211-0XC1 contactor acts as an electrically operated switch. When the 24V AC coil is energized, it closes the main power contacts, allowing power to flow to the connected load (e.g., a motor). The 1 NC auxiliary contact changes state simultaneously, providing a signal that can be used for indication, interlocking, or other control circuit functions. This makes it a fundamental component for:

• Starting and stopping motors
• Controlling heating elements
• Switching lighting circuits
• Implementing safety interlocks

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