Siemens 3TB4211-0XG0 Contactor 36V AC, 16A, 7.5kW with 1 NC Auxiliary Contact Original Brand New

Overview

The Siemens 3TB4211-0XG0 is a high-performance AC contactor designed for reliable and efficient switching of electrical loads. Engineered for demanding industrial environments, this contactor operates on a 36V AC coil and is rated for up to 16A at 400V for AC-3 applications. With a robust design and a compact “Size 1” form factor, it is ideal for motor control, lighting systems, and other industrial automation tasks. The integrated 1 NC (Normally Closed) auxiliary contact provides essential feedback and interlock capabilities. Installation is made simple and secure with standard screw connections.

Key Features & Benefit

• Reliable Performance: Rated for 7.5 kW (at 400V), this contactor provides dependable switching for a wide range of industrial applications.
• Energy Efficient: The 36V AC coil is suitable for various control systems, ensuring efficient operation.
• Integrated Auxiliary Contact: The included 1 NC auxiliary contact allows for easy integration into safety circuits and monitoring systems, improving operational control and safety.
• Durable Design: As part of the trusted Siemens product line, the 3TB4211-0XG0 is built to withstand harsh industrial conditions.
• Simple Installation: Screw connection terminals ensure a quick, secure, and reliable electrical connection.
• Compact Size: The “Size 1” designation means it fits easily into standard control panels and enclosures, saving valuable space.

Technical Specification

• Product Number: 3TB4211-0XG0
• Type: AC Contactor
• Coil Voltage: 36V AC (50 Hz)
• Rated Current: 16A (AC-3, at 400V)
• Rated Power: 7.5 kW (at 400V)
• Auxiliary Contacts: 1 Normally Closed (1 NC)
• Frame Size: Size 1
• Connection Type: Screw Connection

Function

The Siemens 3TB4211-0XG0 contactor serves as an electrically operated switch. When the 36V AC coil is energized, it closes the main power contacts, allowing current to flow to the connected load (e.g., an electric motor). When the coil is de-energized, the contacts open, interrupting the circuit. The integrated 1 NC auxiliary contact changes state in tandem with the main contacts, providing a signal that can be used for interlocking circuits, status indication, or control logic in a larger automation system.

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