Siemens 3RT2626-1NP35 Capacitor Contactor, S0, 20kVAr / 400V, AC/DC 200-280V Original Brand New

Overview

The Siemens 3RT2626-1NP35 is a specialized 3-pole capacitor contactor from the trusted SIRIUS family, engineered for the precise and reliable switching of capacitive loads (AC-6b). This robust device is a cornerstone for effective reactive power compensation, capable of handling loads up to 20 kVAr at 400 V. The integrated design features leading auxiliary contacts that pre-charge the capacitors through resistors, effectively limiting peak charging currents and minimizing disturbances to the power supply network. This makes the 3RT2626-1NP35 an ideal solution for applications involving choked or unchoked capacitors in power factor correction systems and for switching converters.

Key Benefit

• Optimized for Capacitive Loads: Specifically designed for AC-6b applications, ensuring reliable and long-lasting performance when switching capacitors.
• Reduced Network Disturbances: Integrated precharging resistors and leading auxiliary contacts limit high inrush currents, protecting your electrical network from surges and voltage sags.
• Versatile Control: The wide-range AC/DC control voltage (200-280 V AC/DC) with integrated varistor provides flexibility and robust protection against overvoltage spikes, simplifying inventory and application across different systems.
• Compact & Efficient Design: With its compact size S0 footprint, the contactor saves valuable space in control panels and is easy to integrate into new or existing setups.
• Comprehensive Auxiliary Contacts: The built-in 1 NO + 2 NC auxiliary contacts offer enhanced monitoring and control capabilities for your circuit.
• Easy & Secure Connections: The reliable screw terminals ensure a strong, secure, and easy-to-wire connection, reducing installation time and maintenance efforts.

Technical Specifications & Function

• Product Number: 3RT2626-1NP35
• Type: Capacitor Contactor
• Rated Power: 20 kVAr at 400 V (AC-6b)
• Number of Poles: 3-pole
• Control Supply Voltage: 200-280 V AC/DC, 50/60 Hz
• Integrated Protection: Varistor for coil overvoltage suppression
• Auxiliary Contacts: 1 Normally Open (NO) + 2 Normally Closed (NC)
• Connection Type: Screw Terminal
• Frame Size: S0
• Functionality: Switches capacitive loads by limiting peak charging current with leading auxiliary contacts and precharging resistors. Suitable for reactive current compensation systems and converter applications.

Protection & Standard

The Siemens 3RT2626-1NP35 is built to the highest industry standards, ensuring safety and reliability in your operations. It is crucial to implement proper protection measures for all connections.

• Main Connections: Short-circuit and overload protection must be provided using suitable circuit breakers or fuses as per the technical product data sheet and configuration manuals.
• Auxiliary & Control Connections: These circuits should also be protected against short circuits and overloads. The integrated varistor provides protection against overvoltage spikes for the control coil.
• Compliant with Standards: IEC 60947‑1, IEC 60947‑4‑1, IEC 60947‑5‑1, IEC 60831‑1, IEC 61921.

Installation & Expansion

The Siemens 3RT2626-1NP35 comes with integrated and freely usable auxiliary contacts (1 NO + 2 NC), simplifying its application in complex control circuits. The S0 frame size and screw terminal connections facilitate quick and reliable installation. For expanded functionality, additional lateral auxiliary switches can be mounted, adhering to the permissible configuration guidelines.

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