Siemens 3RT2025-2AL20 SIRIUS Power Contactor, 17A, 7.5 kW, 230V AC, S0 Size, Spring-Loaded Terminal Original Brand New

Overview: Robust and Reliable Power Contactor for Industrial Applications

The Siemens 3RT2025-2AL20 is a high-performance SIRIUS power contactor designed for demanding industrial applications. This 3-pole contactor is engineered to handle an operational current of 17 A for AC-3e/AC-3 applications, making it ideal for controlling motors up to 7.5 kW at 400 V. Its compact S0 size and a 230 V AC coil with a 50/60 Hz frequency ensure seamless integration into a wide range of control panels and systems.

The integrated 1 NO + 1 NC auxiliary contact block provides enhanced flexibility for control and signaling circuits. Featuring innovative spring-loaded terminals, this contactor offers a vibration-proof, quick, and maintenance-free connection, significantly reducing installation time and increasing operational reliability. The Siemens SIRIUS line is renowned for its quality, durability, and compliance with global standards, making the 3RT2025-2AL20 a top choice for professionals seeking efficiency and safety.

Key Features & Benefit

• High Performance: Optimized for AC-3e/AC-3 applications with a rated operational current of 17 A and power rating of 7.5 kW at 400 V, suitable for a variety of motor control tasks.
• Space-Saving Design: The compact S0 size allows for high-density panel layouts, maximizing space efficiency without compromising on performance.
• Reliable Connections: The spring-loaded terminal technology provides a secure, gas-tight, and vibration-resistant connection, eliminating the need for retightening and ensuring long-term operational stability.
• Enhanced Functionality: Comes equipped with a pre-installed 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contact, providing crucial feedback and control circuit capabilities.
• Global Compliance: Manufactured by Siemens, a leader in industrial automation, this product meets rigorous international standards, guaranteeing safety and compatibility worldwide.
• Reduced Installation Time: The user-friendly spring-loaded terminals simplify wiring, leading to faster and more efficient commissioning of your systems.

Function

The Siemens 3RT2025-2AL20 functions as a primary switch for motor control and switching resistive loads. When the 230 V AC control voltage is applied to its coil, an electromagnetic field is generated, pulling the main contacts to a closed position, thereby allowing power to flow to the connected load (e.g., an electric motor).

Simultaneously, the auxiliary contacts change their state (NO closes, NC opens), providing crucial feedback to the control system. When the coil voltage is removed, the contactor’s main and auxiliary contacts return to their original state, interrupting the power flow. The spring-loaded terminals ensure a reliable electrical connection throughout this process, even in environments with vibrations or temperature fluctuations.

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