Siemens 3RT2636-1NF35 SIRIUS Capacitor Contactor 50 kVAr, 400V, 3-Pole, S2 Original Brand New

Overview

The Siemens 3RT2636-1NF35 is a high-performance SIRIUS capacitor contactor specifically engineered for safely and efficiently switching capacitive loads. Part of the specialized 3RT2 series, this contactor is designed for AC-6b applications, capable of handling up to 50 kVAr at 400V. It features integrated precharging resistors, which are engaged via leading auxiliary contacts. This innovative design limits the peak charging current of capacitors, minimizing stress on the power supply and connected equipment.

The 3RT2636-1NF35 is a 3-pole contactor with an 83-155 V AC/DC control voltage, making it a versatile solution for a wide range of reactive current compensation systems, including those with choked or unchoked capacitors, as well as for switching converters. Its compact Size S2 design, screw terminals, and integrated varistor for surge suppression make it a robust and reliable choice for industrial control applications.

Key Benefits

• Enhanced System Protection: The integrated precharging resistors effectively limit inrush currents, protecting capacitors and the electrical network from harmful current spikes and minimizing negative impacts on the power supply.
• Versatile Application: Ideal for use in reactive current compensation systems and for switching converters, ensuring stable power factor correction and improved energy efficiency.
• Reliable Performance: Built to stringent standards (IEC 60947-1, 60947-4-1, etc.), guaranteeing dependable and long-lasting operation in demanding industrial environments.
• Simplified Installation: Features convenient screw terminals for secure and straightforward wiring. The integrated varistor provides built-in overvoltage protection for the control coil, reducing the need for external components.
• Compact Design: The Size S2 footprint allows for space-efficient integration into control panels and systems.

Protection and Safety

All connections require appropriate protection against short circuits and overloads. For detailed guidance on protecting main, auxiliary, and control circuits, refer to the technical product data sheet and relevant configuration manuals. The integrated varistor provides overvoltage protection for the control coil, but additional surge suppression accessories can be retrofitted for enhanced damping, if required.

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