Product Description

🔹 Power Contactor with Mirror Contact Elements, Screw Terminals, AC Coil – 3RT2018-1AB028K

🔹 Product Description

The Siemens 3RT2018-1AB028K is a SIRIUS 3RT2 series 3-pole power contactor designed for reliable switching of three-phase motors up to 7.5 kW at 400 V AC. It features mirror contact elements, screw terminal connections, and a 24 V AC control coil (50/60 Hz), making it suitable for motor control centers (MCCs), automation systems, HVAC applications, and industrial power distribution systems.

This model belongs to the compact S00 frame size and is rated for AC-3 / AC-3e duty up to 16 A, making it a standard industrial solution for medium-duty motor switching applications.

According to Siemens SIRIUS technical datasheets, the 3RT2018-1AB028K includes 1 NO auxiliary contact, screw terminals, and S00 size construction, ensuring reliable performance and easy integration in control panels.

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 controllers to verify the true ON/OFF status of the contactor for safe operation and diagnostics.

With screw terminals, wiring remains secure, vibration-resistant, and suitable for long-term industrial use.

🔹 Key Features

• Siemens SIRIUS 3RT2 series power contactor
• Model: 3RT2018-1AB028K
• 3-pole motor switching contactor
• Rated AC-3 current: 16 A
• Motor rating: 7.5 kW @ 400 V AC
• Control coil: 24 V AC (50/60 Hz)
• Mirror contact elements for safety feedback
• Screw terminal connection system
• Compact S00 frame size
• 1 NO auxiliary contact (variant family dependent)
• High electrical endurance and reliability
• Suitable for industrial automation and MCC panels
• Compatible with Siemens SIRIUS modular accessories