Siemens SIRIUS 3RT7025-1AN20 Contactor, AC-3 18A, 7.5kW, 400V, 220V AC Coil, Size S0, Screw Terminals Original Brand New

Overview

The Siemens 3RT7025-1AN20 is a high-performance SIRIUS series power contactor designed for the control of motors and other industrial loads. As a key component in a motor control circuit, this contactor is built to handle an AC-3 rated current of 18A and a power output of 7.5kW at 400V. It features a robust design in a compact Size S0 frame, making it suitable for a wide range of applications where space is a consideration. The contactor is equipped with a 220V AC 50/60Hz coil, ensuring reliable operation with common industrial power supplies. Its secure screw terminals provide a simple and durable connection for your wiring needs.

Features & Benefit

• High Performance: Rated for AC-3 applications up to 18A at 400V, ideal for switching squirrel-cage motors.
• Compact Design (Size S0): Saves valuable panel space while maintaining powerful performance.
• Reliable Coil: The 220V AC 50/60Hz coil ensures consistent and dependable switching.
• Secure Screw Terminals: Provides a strong, vibration-resistant electrical connection.
• Modular System: Part of the comprehensive Siemens SIRIUS modular system, allowing for easy integration with overload relays and auxiliary switches.
• Durability: Built to Siemens’ high standards for long-term reliability and a long mechanical and electrical service life.
• Safety: Features insulated terminals and is designed for safe operation in industrial environments.

Function

The Siemens 3RT7025-1AN20 contactor’s primary function is to act as an electrically controlled switch for an electrical power circuit. When the 220V AC coil is energized, it generates a magnetic field that pulls the main contacts together, closing the circuit and allowing power to flow to the connected load (e.g., a motor). When the coil is de-energized, a spring mechanism separates the contacts, interrupting the power flow and shutting down the load. This makes it an essential component for motor control, switching resistive loads, and controlling other power-consuming devices in industrial automation and control systems.

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