Product Description

🔹 Power Contactor with Mirror Contact Elements, Screw Terminals, AC/DC Coil – 3RT2018-1AP028K

🔹 Product Description

The Siemens 3RT2018-1AP028K 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 an AC/DC control coil (230 V AC, 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, which makes it suitable for medium-duty motor switching applications with stable coil operation and flexible control voltage compatibility.

Based on Siemens SIRIUS technical data, the 3RT2018 series supports 16 A AC-3 rating and 7.5 kW motor switching at 400 V AC, with screw terminal construction ensuring secure wiring and long service life in industrial environments.

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 the controller to verify the actual ON/OFF state of the contactor for safe operation and diagnostics.

With screw terminals, installation remains vibration-resistant and reliable for continuous industrial use in control panels.

🔹 Key Features

• Siemens SIRIUS 3RT2 series power contactor
• Model: 3RT2018-1AP028K
• 3-pole motor switching contactor
• Rated AC-3 current: 16 A
• Motor rating: 7.5 kW @ 400 V AC
• Control coil: 230 V AC (50/60 Hz) (AC/DC compatible coil family)
• Mirror contact elements for safety feedback
• Screw terminal connection system
• Compact S00 frame size
• 1 NO auxiliary contact (series dependent configuration)
• High electrical endurance and reliable switching
• Suitable for industrial automation and MCC panels
• Compatible with Siemens SIRIUS modular accessories