Siemens 3TB4122-0XL0 Contactor, 12A, 5.5kW, AC-3, 125/127V AC Coil, 1NO+1NC, Size 0 Original Brand New

Overview

The Siemens 3TB4122-0XL0 is a high-performance, robust AC contactor designed for reliable switching of electrical loads. This contactor is engineered to meet the demanding requirements of industrial control applications, offering excellent durability and operational safety. With its compact Size 0 frame and screw connection terminals, it provides a secure and space-efficient solution for motor control and other AC switching tasks. The integrated 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contacts provide enhanced flexibility for control circuits.

Key Features & Specification

• Product Number: 3TB4122-0XL0
• Operating Voltage: 125/127 V AC, 50 Hz
• Rated Current (AC-3): 12 A at 400 V
• Rated Power (AC-3): 5.5 kW at 400 V
• Auxiliary Contacts: 1 NO + 1 NC
• Size: 0 (Compact Frame)
• Connection Type: Screw terminals
• Type: AC Contactor
• Application: Motor control, switching of resistive and inductive loads, and industrial automation.
• Dimensions: [Add specific dimensions if available]
• Standards: IEC 60947, VDE 0660 (or relevant international standards)

Benefit

• Reliable Performance: Built with high-quality materials to ensure long-term operational stability and a long mechanical life.
• Enhanced Safety: The screw connection provides a strong, vibration-resistant connection, minimizing the risk of faults.
• Versatile Application: Suitable for a wide range of industrial applications, including motor starter circuits, heating, and lighting control.
• Space-Saving Design: The compact Size 0 footprint allows for efficient use of panel space.
• Easy Integration: Standardized design and clear markings facilitate simple installation and wiring into existing control systems.

Function

The Siemens 3TB4122-0XL0 functions as an electrically controlled switch. When the 125/127V AC coil is energized, it closes the main power contacts, allowing current to flow to the connected load. Simultaneously, the auxiliary contacts change state—the NO contact closes and the NC contact opens—to provide feedback or control signals to the rest of the circuit. This makes it an essential component for automated systems requiring remote or automated control of high-power loads.

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