Siemens 3TB4222-0XH0 Contactor, 48V AC, 16A, 7.5kW, with 1 NO + 1 NC Auxiliary Contact Original Brand New

Overview

The Siemens 3TB4222-0XH0 is a high-performance AC contactor designed for reliable switching and control of electrical loads. Engineered for demanding industrial and commercial applications, this size 1 contactor operates on a 48V AC control voltage and is rated for a 16A current and a 7.5kW power output at 400V. It is equipped with one normally open (1 NO) and one normally closed (1 NC) auxiliary contact, providing flexibility for signaling and interlocking circuits. The robust screw connection terminals ensure a secure and durable electrical connection, making it an excellent choice for a wide range of motor control and power distribution systems.

Key Features & Specification

• Product Number: Siemens 3TB4222-0XH0
• Contactor Type: AC Contactor
• Operating Frequency: 50 Hz
• Control Voltage: 48V AC
• Rated Operational Current (AC3): 16 A at 400 V
• Rated Power (AC3): 7.5 kW at 400 V
• Auxiliary Contacts: 1 Normally Open (1 NO) + 1 Normally Closed (1 NC)
• Size: Size 1
• Connection Method: Screw Connection
• Application: Ideal for switching motors, lighting, heating systems, and other industrial loads.

Benefit

• Reliability: Built with Siemens’ renowned quality and engineering, ensuring long-term performance and durability in harsh environments.
• Versatile Functionality: The inclusion of both NO and NC auxiliary contacts allows for easy integration into complex control circuits for status indication, interlocking, and safety functions.
• Secure Connection: The dependable screw terminals provide a strong, vibration-resistant connection, reducing the risk of downtime due to loose wiring.
• Efficient Power Handling: Optimized for 50 Hz systems, this contactor efficiently manages a 7.5 kW load, making it suitable for a variety of medium-duty applications.
• Compact Design: The size 1 form factor allows for space-saving installation in control panels and electrical cabinets.

Function

The Siemens 3TB4222-0XH0 contactor serves as an electromechanical switch. When the 48V AC control voltage is applied to the coil, it creates a magnetic field that closes the main contacts, allowing power to flow to the connected load. Simultaneously, the auxiliary contacts change state (NO closes, NC opens), which can be used to control other components, provide feedback to a PLC, or create safety interlocks. When the control voltage is removed, the magnetic field collapses, and the contacts return to their original state, de-energizing the load.

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