Siemens 3RT2037-1AU00 SIRIUS Power Contactor, 65A, 30kW, 240V AC Coil, Size S2 Original Brand New

Overview

The Siemens 3RT2037-1AU00 is a high-performance, 3-pole SIRIUS 3RT2 Power Contactor designed for reliable switching of motors and other industrial loads. As part of the highly regarded SIRIUS modular system, this contactor offers exceptional operational efficiency and flexibility for demanding applications.

It is rated for a substantial current of 65 A in AC-3/AC-3e duty and is capable of controlling motors up to 30 kW at $400\text{ V}$. Featuring a $240\text{ V AC}$, $50\text{ Hz}$ control coil and robust screw terminals, the 3RT2037-1AU00 is an essential component for motor starters, drives, and control systems in size S2.

Key Benefits

• High Performance: Safely handles high currents up to $65\text{ A}$ and motor loads up to $30\text{ kW}$.
• Built-in Flexibility: Includes $1\text{ NO}+1\text{ NC}$ integrated auxiliary contacts for simple control circuit integration.
• Robust and Reliable: Part of the industry-leading Siemens SIRIUS family, ensuring a long mechanical and electrical service life.
• Standardized Installation: Size S2 allows for space-saving mounting and seamless integration with other SIRIUS components (e.g., overload relays).
• Global Compatibility: Designed to meet international standards (IEC, UL/CSA, CCC, etc.).
• Secure Connection: Screw terminals provide a time-tested, secure, and vibration-resistant connection for all conductors.

Function and Applications

The Siemens 3RT2037-1AU00 Power Contactor functions as an electromechanical switching device primarily used for:

• Motor Switching: Starting, stopping, and reversing of 3-phase AC motors (e.g., pumps, fans, compressors, conveyors).
• Switching Resistive Loads (AC-1): Control of heating elements or lighting systems.
• Integration into Starters: Forming direct-on-line (DOL) or reversing starters when combined with appropriate accessories like overload relays and auxiliary contact blocks.
• Automation Systems: Acting as the main actuator in PLC-controlled industrial machinery and plant engineering.

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