Siemens 3RT2617-1BB43 Capacitor Contactor, AC-6b 12.5 kVAr, 24V DC, 3-Pole, Size S00 Original Brand New

Overview

The Siemens 3RT2617-1BB43 is a specialized capacitor contactor from the SIRIUS 3RT26 series, engineered for the efficient and safe switching of capacitive loads in power factor correction and reactive power compensation systems. This 3-pole contactor is designed to handle loads up to 12.5 kVAr at 400 V (AC-6b) and features a 24V DC coil for precise control. A key feature of the 3RT26 series is the integration of leading auxiliary contacts that engage precharging resistors before the main contacts close.

This innovative design effectively limits the high inrush currents associated with switching capacitors, minimizing stress on the power supply and connected equipment. The 3RT2617-1BB43 is a reliable component for applications requiring a robust solution for switching both choked and unchoked capacitors.

Key Features & Benefits

• Optimized for Capacitive Loads: Specifically designed for AC-6b switching, ensuring long-term reliability and performance in reactive power compensation systems.
• Inrush Current Limitation: Integrated precharging resistors, activated by leading auxiliary contacts, dramatically reduce peak charging currents, protecting the power network and extending equipment life.
• Versatile Control: Operates with a 24V DC control voltage, making it compatible with modern control systems and automation setups.
• Comprehensive Connectivity: Equipped with screw terminals for secure and reliable wiring connections.
• Integrated Auxiliary Contacts: The basic unit includes 1 NO (Normally Open) and 1 NC (Normally Closed) auxiliary contacts, providing flexibility for control and signaling circuits.
• Compact Design: The Size S00 frame allows for space-saving installation in control cabinets.
• High-Quality Standards: Manufactured to meet strict international standards, including IEC 60947-1, IEC 60947-4-1, and IEC 60831-1, guaranteeing safety and performance.

Functions

• Switching Capacitors: The primary function is to safely and reliably switch choked or unchoked capacitors in reactive current compensation systems.
• Converter Switching: Suitable for switching converters, ensuring smooth operation by managing the capacitive load.
• Inrush Current Damping: The leading auxiliary contacts and precharging resistors actively dampen the initial high current spikes when the capacitor is connected to the circuit.
• Control and Signaling: The integrated auxiliary contacts allow for the status of the contactor to be monitored or used in interlocking circuits.

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