Siemens 3RT2025-1AG24 SIRIUS Power Contactor, 17A, 7.5kW, 110V AC Coil, 3-Pole, 2NO+2NC, Size S0, Screw Terminal Original Brand New

Overview

The Siemens 3RT2025-1AG24 is a high-performance, 3-pole SIRIUS 3RT2 power contactor designed for efficient switching of motors and general loads in industrial automation applications. Part of the compact and rugged SIRIUS family, this Size S0 contactor is rated for a maximum operating current of 17 A (AC-3/AC-3e) and motor power up to 7.5 kW at 400 V. Its reliable control is achieved via a standard 110 V AC, 50/60 Hz coil. For enhanced functionality, it includes integrated, pre-assembled auxiliary contacts (2 NO + 2 NC) and utilizes robust screw terminals for secure and straightforward wiring

Benefits & Advantages

• Reliable Motor Switching: Designed for AC-3 and the new energy-efficient AC-3e categories, providing high operational reliability for standard motor applications.
• Space-Saving Design: The compact Size S0 frame allows for high-density panel mounting, optimizing cabinet space.
• Integrated Flexibility: Comes with a pre-mounted $2\text{ NO }+2\text{ NC}$ auxiliary switch block, reducing installation time and eliminating the need for separate ordering and mounting.
• Easy Maintenance: The removable auxiliary switch simplifies replacement and configuration changes.
• Global Standard Compliance: SIRIUS 3RT contactors meet all major international standards and certifications (e.g., IEC, UL, CSA, CCC).
• Long Mechanical Life: Built for durability and extended service life in demanding industrial environments.

Function

The 3RT2025-1AG24 power contactor acts as an electromechanical switching device in power circuits. When the 110 V AC coil is energized, it closes the three main power contacts to switch a 3-phase load, such as an electric motor. Simultaneously, the integrated auxiliary contacts change state: the 2 NO contacts close and the 2 NC contacts open. These auxiliary contacts are crucial for interlocking, signaling, and control circuit feedback in Direct-On-Line (DOL) starters and other control systems.

Application

• Switching of standard 3-phase AC motors (up to 7.5 kW).
• Integration into motor starter combinations (e.g., in combination with SIRIUS 3RV Motor Circuit Breakers).
• Controlling resistive loads.
• Use in various industrial machinery and control panels.

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