1.Company introduction
Xindie Electric Co., Ltd. is a professional enterprise specializing in the research, development, manufacturing and sales of core electrical products. With a long-term commitment to the industry, it has adopted mature production processes and strict quality control systems to provide customers with stable and reliable electrical integrated solutions. 
The company's main products cover three core categories: distribution switch control equipment and accessories, high and low voltage electrical appliances and accessories, and electrical complete equipment and accessories. At the same time, it specializes in manufacturing AC contactors, circuit breakers, non-metering type instruments and meters, and various distribution boxes. The products are widely used in various fields such as industrial production, buildings, and municipal engineering, and can precisely meet the electricity demand in different scenarios. 
Since its establishment, the company has always adhered to the business philosophy of "quality first, customer-oriented". From raw material procurement to the final product delivery, every step is subject to strict inspection standards to ensure that the product performance complies with relevant national technical specifications. We not only provide standardized products to customers, but also can customize exclusive electrical products and supporting services according to individualized needs, helping customers improve power usage efficiency and enhance safety guarantees. 
In the future, the company will continue to focus on technological innovation and product upgrades, continuously expand the application boundaries in the electrical field, and strive to become a benchmark enterprise in the domestic electrical manufacturing industry, contributing solid strength to the development of the industry and the safety of electricity usage in society.
2.product presentation
This industrial-grade AC contactor with large current features a long body. Its core structure includes an electromagnetic mechanism (coil + silicon steel sheet core), a three-pole main contactor system, an arc suppression device, and an insulating housing. It supports frequent start-stop, braking, reverse connection and other control requirements.
3.Functional Roles
Basic Switching: Enables remote / automatic control of the connection and disconnection of the AC main circuit;
Frequent Operations: Supports frequent start-stop, braking, and forward/reverse control of equipment such as motors;
Signal Interlock: Utilizes auxiliary contacts to provide feedback on the switching status, achieving circuit interlocking and signal indication;
Arc Suppression: Equipped with an arc extinguishing device, which quickly extinguishes the arc during disconnection, protecting the contacts.
4.Application scenarios
Industrial power system: Line switching in substations and distribution rooms;
High-power equipment: Control of large motors such as fans, water pumps, compressors, etc.;
Automated production lines: Achieve sequential start-stop and safety interlock of equipment in conjunction with PLC;
Building electrical: Power supply control for air conditioners, elevators, fire pumps, etc.
5.Supporting and connecting protection function
Support and connection: Metal base + bolted wiring terminals, achieving stable mechanical connection of the main circuit;
Protection function:
Combined with fuses / thermal relays, it realizes overload and short-circuit protection;
Arc extinguishing device prevents contact damage, prolonging the equipment lifespan;
Insulating housing isolates live components, reducing the risk of electric shock.
6.Material composition
Main contact: Silver tin oxide, featuring low contact resistance and high resistance to soldering;
Core: Silicon steel sheet laminated (to reduce eddy current loss);
Coil: Copper enameled wire wound;
Enclosure / Insulation component: Heat-resistant insulating plastic (such as phenolic resin);
Terminal: Tin-plated brass (to enhance conductivity and corrosion resistance).
7.Manufacturing process
Contact: AgSnO material is prepared by powder metallurgy, then sintered and extruded into shape;
Core: Silicon steel sheets are stamped and stacked, then riveted;
Winding: Copper enameled wire is wound on the insulating frame and then impregnated with insulating paint for curing;
Arc extinguishing device: Metal arc extinguishing grid + arc-resistant plastic cover, formed by stamping and assembly;
Overall: Modular assembly, with bolted connection of terminals to ensure mechanical strength and electrical stability.