Siemens 3RT2025-1AC20 17A 3P 24V AC Contactor

Siemens 3RT2025-1AC20 3-Pole Motor Contactor – 110V AC Coil, Size S0

Product Overview:

The Siemens 3RT2025-1AC20 is a 3-pole, size S0 motor contactor designed for reliable switching of motors and other industrial loads. With its 24V AC control voltage and compact footprint, it provides a robust solution for a wide range of automation and motor control applications.

Built with Siemens' renowned quality and precision engineering, this contactor is part of the Sirius 3RT2 series — known for long life, easy integration, and compatibility with Siemens overload relays and accessories.

Key Specifications:

• Control Voltage: 24V AC, 50/60 Hz

• Current Rating (AC-3): 17A at 400V

• Power Rating: Up to 7.5 kW @ 400V (AC-3 duty)

• Number of Poles: 3

• Auxiliary Contacts: 1 NO + 1 NC 

• Size: S0 (compact design)

• Mounting Options: DIN rail or screw mounting

• Terminal Type: Screw terminals

• Standards Compliance: IEC, UL, CSA certified

• Ambient Temperature Range: -25°C to +60°C

Typical Applications:

• Motor switching and control in industrial panels

• HVAC systems

• Material handling equipment

• Pumps, compressors, and fans

• OEM machine building

Highlights:

• Compact design for space-saving panel layouts

• High-performance operation with low power consumption

• Easily integrates with Siemens 3RU overload relays

• Snap-on accessories for simplified wiring and expansion

• Designed for long life in harsh industrial environments