🔹 Power Contactor with Mirror Contact Elements, Screw Terminals, AC Coil – 3RT2023-1AC208K

🔹 Product Description

The Siemens 3RT2023-1AC208K 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 comes with mirror contact elements, screw terminals, and an AC control coil (typically 24 V AC, 50/60 Hz depending on configuration), making it suitable for industrial motor control, HVAC systems, and automation panels.

This model belongs to the S0 frame size, which is designed for higher performance compared to S00, offering better thermal capacity and suitability for slightly higher duty motor applications in compact control systems.

According to Siemens SIRIUS 3RT2 technical documentation for the S0 series, the 3RT2023 family is rated around 9 A AC-3 (approx. 4 kW at 400 V) with standard 3 NO main contacts and auxiliary contact options (1 NO + 1 NC depending on variant), ensuring flexible integration in control circuits.

The mirror contact elements provide mechanically linked feedback of the main contacts, which is essential for PLC interlocking, safety circuits, and machine monitoring systems, allowing verification of the real switching status of the contactor for safer operation.

With screw terminals, installation remains robust, vibration-resistant, and suitable for long-term industrial use in panel environments.

🔹 Key Features

• Siemens SIRIUS 3RT2 series power contactor
• Model: 3RT2023-1AC208K
• 3-pole motor switching contactor
• Rated AC-3 current: ~9 A (S0 range)
• Motor rating: 4 kW @ 400 V AC
• Control coil: AC coil (variant-dependent, typically 24 V AC family)
• Mirror contact elements for safety feedback
• Screw terminal connection system
• Compact S0 frame size
• 3 NO main contacts + auxiliary contact options (variant dependent)
• High electrical endurance and reliable switching
• Suitable for industrial automation, MCC panels, and HVAC systems
• Compatible with Siemens SIRIUS modular accessories