Siemens 3RT1956-7A Arc Chute for SIRIUS 3RT1056 Contactor, Size S6 Original Brand New

Overview

The Siemens 3RT1956-7A Arc Chute is an essential genuine spare part for the SIRIUS 3RT1056 Power Contactor (Size S6). As a critical component in the main circuit, the arc chute is designed to safely extinguish the electrical arc that forms when the contactor opens under load. Regular inspection and replacement of the arc chute are crucial for maintaining the operational safety, reliability, and longevity of your Siemens 3RT1056 contactor, particularly in high-switching capacity applications. This product ensures your system adheres to stringent international standards like IEC and VDE.

Key Features & Benefit

• High Compatibility: Designed for seamless replacement in Siemens 3RT1056 contactors.

• Enhanced Safety: Efficiently suppresses electrical arcs, reducing risk to equipment and operators.

• Durable Construction: Made from high-quality materials to withstand high-voltage operations.

• Easy Installation: Quick and hassle-free replacement, reducing downtime.

• Improved Device Life: Protects the contactor from wear and tear caused by frequent switching.

Function

The primary function of the 3RT1956-7A Arcing Chamber is to manage and suppress the electrical arc generated during the interruption of the main current flow. It achieves this by:

1. Cooling the Arc: The arc is driven into the chute’s plates, where it is cooled rapidly.
2. Lengthening the Arc: The shape of the chamber forces the arc to stretch, making it unstable.
3. Extinguishing the Arc: The combined cooling and stretching quickly de-ionize the air gap, safely extinguishing the arc and restoring the insulating properties of the medium. This process is vital for the reliable switching of electric motors (e.g., up to 90 kW at 400V).

Technical Specification

• Part Number: 3RT1956-7A

• Compatible with: Siemens 3RT1056 Contactor

• Material: High-grade arc-resistant composite

• Application: Industrial automation and motor control

For more of our high-quality industrial automation and control products, please visit turll today!