Power Contactors, SIRIUS 3RT2 Series, 3-Pole, Screw Terminals, AC-3 Duty, Coil Variant AG20 - 3RT2025-1AG20

🔹 Power Contactor with Mirror Contact Elements, Screw Terminals, AC Coil – 3RT2025-1AG20

The Siemens 3RT2025-1AG20 is a SIRIUS 3RT2 series S0 frame 3-pole power contactor designed for switching three-phase motors up to 7.5 kW at 400 V AC. It comes with mirror contact elements, screw terminals, and an AC control coil (110 V AC, 50/60 Hz), making it suitable for industrial motor control, PLC automation systems, MCC panels, and safety interlocking circuits.

This model belongs to the S0 frame size, widely used in medium-duty motor applications, offering reliable switching performance and strong electrical endurance for industrial environments.

According to Siemens SIRIUS technical specifications, the 3RT2025-1AG20 is rated at 17 A AC-3, supporting motors up to 7.5 kW at 400 V AC, with standard 3 NO main contacts and auxiliary contacts (typically 1 NO + 1 NC) depending on configuration.

The mirror contact elements provide mechanically linked feedback of the main contacts, which is critical for PLC interlocking and safety circuits, ensuring that the controller can verify the real switching status of the contactor and not just the command signal.

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

🔹 Key Features

• Siemens SIRIUS 3RT2 series power contactor
• Model: 3RT2025-1AG20
• 3-pole motor switching contactor
• Rated AC-3 current: 17 A
• Motor rating: 7.5 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
• Auxiliary contacts: typically 1 NO + 1 NC
• High electrical endurance and reliable switching
• Suitable for industrial automation, MCC panels, HVAC systems, and machine control