Siemens 3RT2023-1AB04 Power Contactor 9 A, 4 kW, 24V AC, 2 NO + 2 NC Aux Contacts, SIRIUS S0 Size Original Brand New

Overview

The Siemens 3RT2023-1AB04 is a robust and reliable SIRIUS 3RT2 series power contactor, engineered for efficient and safe switching of motors and other electrical loads. This compact S0 size contactor is designed for demanding industrial applications, offering exceptional performance and a long service life. Its versatile design, featuring a 24V AC 50 Hz coil and a unique combination of 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, makes it a perfect choice for complex control circuits.

Key Features & Specification

• Product Type: Power Contactor
• Model Number: 3RT2023-1AB04
• Manufacturer: Siemens
• Series: SIRIUS 3RT2
• Standard Compliance: AC-3e / AC-3
• Current Rating (Ie): 9 A (at 400 V)
• Power Rating (Pe): 4 kW (at 400 V)
• Number of Poles: 3-pole
• Operating Voltage: 24 V AC, 50 Hz (Coil)
• Auxiliary Contacts: 2 NO + 2 NC (Removable auxiliary switch block)
• Termination: Screw terminals
• Frame Size: S0
• Installation: DIN rail or screw mounting
• Application: Ideal for motor control, switching resistive loads, and general automation tasks.

Benefit

• High Performance: Optimized for efficient switching, minimizing power loss and enhancing system reliability.
• Enhanced Safety: The integrated auxiliary contacts (2 NO + 2 NC) provide a higher level of control and feedback for safety interlocking and signaling within your control system.
• Flexible & Modular Design: The removable auxiliary switch block allows for easy customization and maintenance, reducing downtime.
• Robust & Durable: Built with high-quality materials to withstand harsh industrial environments, ensuring a long operational life.
• Space-Saving: The compact S0 size design allows for high-density panel layouts, optimizing valuable cabinet space.
• Easy Installation: Features standard screw terminals for secure and straightforward wiring.

Function

The Siemens 3RT2023-1AB04 functions as an electromechanical switch. When the 24V AC coil is energized, it closes the main power contacts, allowing current to flow to the connected motor or load. Simultaneously, the auxiliary contacts change state—the NO contacts close and the NC contacts open—providing crucial feedback for your control system, such as indicating the ON/OFF state of the contactor. This functionality is essential for automation, motor control, and safety circuits.

Application

• Motor Starters (DOL – Direct On-Line)
• Pump and Fan Control
• Conveyor Systems
• HVAC Systems
• General Industrial Automation
• Machine and Plant Engineering

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