Siemens SIRIUS 3RT7045-1AB00 Contactor, 3-Pole, AC-3, 80A, Size S3, 24 VAC Coil Original Brand New

Overview

The Siemens 3RT7045-1AB00 is a high-performance 3-pole contactor from the renowned SIRIUS series, designed for reliable switching of motors and other electrical loads. This robust contactor is rated for AC-3 applications up to 80A at 400V, with a corresponding power rating of 37 kW. Its compact design (Size S3) and durable construction make it an ideal choice for a wide range of industrial control applications. The integrated screw terminals ensure secure and straightforward wiring. Powered by a 24 VAC, 50 Hz control coil, the 3RT7045-1AB00 offers dependable operation and seamless integration into existing control systems.

Key Features & Benefit

• High-Performance Switching: Rated for AC-3 duty, providing a safe and reliable solution for motor control applications up to 37 kW at 400V.
• Robust & Durable: Built with Siemens’ quality engineering, ensuring a long operational life and high reliability in demanding industrial environments.
• Standardized Size S3: Offers a compact footprint, allowing for space-saving installation in control panels and enclosures.
• Convenient Screw Terminals: Facilitates easy and secure electrical connections, reducing installation time and effort.
• Low Power Consumption: Efficient 24 VAC, 50 Hz coil minimizes energy usage during operation.
• Versatile Application: Suitable for a broad range of applications including motor starting, switching resistive loads, and general-purpose power control.

Function

The Siemens 3RT7045-1AB00 contactor acts as an electrically operated switch. When the 24 VAC control coil is energized, it closes the main power contacts, allowing current to flow to the connected load (e.g., an electric motor). When the control coil is de-energized, a spring mechanism opens the contacts, interrupting the power flow. This functionality is crucial for the safe and automated control of machinery and industrial processes. It can be paired with overload relays to provide comprehensive motor protection.

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