Siemens 3TB4211-0XN1 Contactor, AC-3 16A 7.5kW, 220V 60Hz, with 1 NC Auxiliary Contact Original Brand New

Overview

The Siemens 3TB4211-0XN1 is a high-performance AC contactor designed for the reliable switching and control of electric motors and other loads in industrial applications. As part of the trusted Siemens SIRIUS family, this size 1 contactor is engineered for durability and efficiency. It is specifically rated for an operational current of up to 16 A under AC-3 conditions at 400 V, making it perfectly suited for controlling 3-phase motors up to 7.5 kW. The contactor operates with a 220 V AC coil at a frequency of 60 Hz and includes one normally closed (NC) auxiliary contact for enhanced control circuit functionality. The secure screw connections ensure a robust and easy-to-manage installation.

Key Features

• Product Number: 3TB4211-0XN1
• Operating Voltage: 220 V AC at 60 Hz (Coil)
• Operational Current: 16 A (for AC-3, 400 V)
• Rated Power: 7.5 kW (for AC-3, 400 V)
• Auxiliary Contacts: 1 Normally Closed (NC)
• Connection Type: Screw terminals for secure and reliable wiring.
• Size: Size 1
• Compliance: IEC 60947 and other international standards.

Benefit

• Reliable Performance: Built by Siemens, a global leader in automation, this contactor offers long-term reliability and a high switching capacity, reducing downtime and maintenance costs.
• Enhanced Safety: Provides safe and effective switching of motor loads, protecting both equipment and personnel from electrical faults.
• Versatile Application: Ideal for a wide range of motor control applications, including pumps, fans, conveyors, and various industrial machinery.
• Simplified Integration: The integrated auxiliary contact (1 NC) simplifies control circuit design and allows for direct feedback or interlocking mechanisms without the need for additional components.
• Durable Design: Constructed with high-quality materials to withstand demanding industrial environments and frequent switching operations.

Function

The Siemens 3TB4211-0XN1 contactor is a crucial component in any motor control circuit. Its primary functions include:

1. Motor Switching: Safely and remotely switching the main power supply to a motor, allowing for automated or manual on/off control.
2. Overload Protection Integration: Designed to work seamlessly with thermal overload relays to protect the motor from damage caused by overcurrents.
3. Control Circuit Integration: The auxiliary contact can be used to signal the status of the main contactor to a PLC or another part of the control circuit, or to create interlocking logic to prevent simultaneous operation of conflicting equipment.

Technical Specification

• Contactor Type: 3-pole
• Rated Insulation Voltage: 690 V
• Coil Power Consumption: Holding: 13 VA / Pull-in: 100 VA
• Electrical Endurance: >1 million switching cycles
• Mechanical Endurance: >10 million switching cycles
• Operating Temperature: -25 to +55 °C

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