🔹 Power Contactor with Mirror Contact Elements, Screw Terminals, AC Coil – 3RT2023-1AG20

🔹 Product Description

The Siemens 3RT2023-1AG20 is a SIRIUS 3RT2 series S0 frame 3-pole power contactor designed for reliable switching of three-phase motors up to 4 kW at 400 V AC. It features mirror contact elements, screw terminals, and an AC control coil (110 V AC, 50/60 Hz), making it suitable for industrial motor control, automation panels, and HVAC starter circuits.

This model belongs to the S0 frame size, which is used for medium-duty motor switching applications where higher current capacity and better thermal performance are required compared to S00 series contactors.

According to Siemens SIRIUS technical datasheets, the 3RT2023 series is rated around 9 A AC-3, supporting motor loads up to 4 kW at 400 V AC, with standard 3 NO main contacts and auxiliary contact configuration (typically 1 NO + 1 NC) depending on variant.

The mirror contact elements provide mechanically linked feedback of the main contacts, which is essential for PLC interlocking, safety circuits, and machine monitoring systems, ensuring the controller can verify the actual ON/OFF state of the contactor for safe operation and diagnostics.

With screw terminals, installation remains secure, vibration-resistant, and suitable for long-term industrial use in control panels.

🔹 Key Features

• Siemens SIRIUS 3RT2 series power contactor
• Model: 3RT2023-1AG20
• 3-pole motor switching contactor
• Rated AC-3 current: 9 A
• Motor rating: 4 kW @ 400 V AC
• Control coil: 110 V AC, 50/60 Hz
• Mirror contact elements for safety feedback
• Screw terminal connection system
• Compact S0 frame size
• 3 NO main contacts + auxiliary contacts (variant dependent)
• High electrical endurance and reliable switching
• Suitable for industrial automation, MCC panels, and HVAC systems
• Compatible with Siemens SIRIUS modular accessories