Siemens 3TB4311-0XN2 Contactor, AC 50/60 Hz, 220V, 22A, 11kW, 1 NC Aux Contact, Size 1, Screw Connection Original Brand New

Overview

The Siemens 3TB4311-0XN2 is a robust and reliable AC contactor designed for industrial control applications. This high-performance device is engineered to switch electrical circuits, typically controlling electric motors, with precision and durability. Its compact size and efficient design make it a versatile component for a wide range of machinery and automation systems.

Key Features & Specification

• Product Number: 3TB4311-0XN2
• Operating Voltage: 220 V AC, 50/60 Hz
• Rated Current (AC-3): 22 A at 400 V
• Rated Power (AC-3): 11 kW at 400 V
• Auxiliary Contacts: 1 Normally Closed (NC)
• Contactor Size: Size 1
• Connection Type: Screw terminals for secure and easy wiring
• Standards: Built to the highest Siemens quality and safety standards.

Benefit

• High Performance: With a 22A current rating and 11kW power capacity, this contactor is built to handle demanding industrial loads with ease.
• Reliable Operation: Siemens' reputation for quality ensures long-term reliability and a long mechanical and electrical service life, reducing downtime and maintenance costs.
• Enhanced Safety: The integrated 1 NC auxiliary contact provides an essential feedback signal for interlocking and safety circuits, preventing unintended operations.
• Easy Installation: Screw connections simplify the wiring process, ensuring a solid, reliable connection and making installation or replacement quick and efficient.
• Versatility: Suitable for a wide range of motor control applications, including pumps, fans, compressors, and conveyors in various industrial settings.

Function

The Siemens 3TB4311-0XN2 functions as an electromagnetically operated switch. When the 220 V AC control voltage is applied to the coil, it creates a magnetic field that closes the main power contacts. This action allows the high-current electrical power to flow to the connected equipment, such as an electric motor. The 1 NC auxiliary contact changes state from closed to open when the main contacts close, which can be used to signal the ON/OFF status of the contactor to a PLC or another control device.

Application

This contactor is an ideal choice for:

• Controlling AC motors in manufacturing plants
• Pump and ventilation systems
• Heating, ventilation, and air conditioning (HVAC) systems
• Conveyor systems and material handling equipment
• Automation panels and electrical switchgear

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