Siemens 3RT2627-1AF05 Capacitor Contactor 25 kVAr, 400V, 110V AC, S0 Size Original Brand New

Overview

The Siemens 3RT2627-1AF05 is a high-performance capacitor contactor designed for the reliable switching of capacitive loads (AC-6b). With a rating of 25 kVAr at 400V, this 3-pole contactor is engineered to minimize the negative impacts of capacitive loads on your power supply network. It features special precharging resistors that limit inrush current, protecting your equipment and ensuring stable operation. The compact S0 size and convenient screw terminals make for easy installation in various reactive power compensation systems.

Benefits

• Extended Equipment Lifespan: The unique precharging resistor design minimizes peak charging currents, reducing stress on capacitors and other connected equipment.
• Enhanced System Stability: By controlling inrush current, the contactor prevents voltage sags and power quality issues, contributing to a more stable electrical network.
• Versatile Application: Ideal for switching both choked and unchoked capacitors in reactive current compensation systems and for use with converters.
• Reliable Performance: Built to stringent IEC standards (IEC 60947, IEC 60831, etc.), ensuring dependable and safe operation.
• Easy Integration: The compact S0 size and screw terminals facilitate straightforward installation and wiring.

Features & Functions

• Specialized Design (AC-6b): Specifically engineered for the demanding task of switching capacitive loads.
• Precharging Resistors: These are switched on via leading auxiliary contacts, which close before the main contacts to dampen the initial current surge.
• Rated for 25 kVAr: Capable of handling significant reactive power compensation requirements at 400V.
• Control Voltage: Operates with a 110V AC, 50 Hz control supply, compatible with standard industrial control systems.
• Auxiliary Contacts: Comes equipped with a robust configuration of 1 NO (Normally Open) and 2 NC (Normally Closed) auxiliary contacts, providing flexibility for control and signaling circuits.
• Short-Circuit and Overload Protection: The design allows for the integration of external protection devices for main, auxiliary, and control circuits, ensuring comprehensive safety.
• Overvoltage Protection: Can be retrofitted with optional surge suppressors (RC elements, varistors, etc.) to protect the coil from opening surges.
• Expandability: The basic unit can be expanded with additional lateral auxiliary switches, offering greater customization and control options.

Standards

The Siemens 3RT2627-1AF05 adheres to the following international standards:

• IEC 60947-1
• IEC 60947-4-1
• IEC 60947-5-1
• IEC 60831-1
• IEC 61921

Application

• Reactive power compensation systems
• Power factor correction panels
• Switching converters
• Industrial automation and control panels