Magnetic AC Contactor

The Magnetic AC Contactor completes circuit switching through the electromagnetic attraction principle, representing the most versatile basic electrical control component across the full range of contactors with the broadest applicable scenarios, also serving as core repeat-order products for overseas agents and complete equipment manufacturers. Our self-developed and manufactured Magnetic AC Contactor covers full current specifications from 9A to 630A, compatible with AC circuits of 50/60Hz and maximum 690V. Relying on a stable electromagnetic drive structure, it enables remote automatic start-stop control of motors, heating equipment, fans and water pumps. Ordinary magnetic contactors on the market frequently suffer from coil overheating and pull-in vibration issues, yet our Magnetic AC Contactor benefits from 39 years of industrial control technology accumulation to optimize the magnetic circuit structure, drastically reducing operating noise and coil temperature rise. Even under uninterrupted 24-hour continuous operation, faults such as poor contact and equipment shutdown caused by contacts will not occur.

The complete machine adopts split electromagnetic iron cores paired with thickened shock-absorbing springs for smooth, unobstructed pull-in and breaking movements without jamming. Main contacts are made of high-silver-content alloy materials paired with enclosed multi-grid arc extinguishing chambers to rapidly extinguish electric arcs during high-current disconnection and reduce contact loss. The housing is constructed from V0-grade flame-retardant high-temperature resistant engineering plastic, resistant to aging and deformation under workshop dust and high-temperature environments. Access mounting slots are reserved on both the side and top, allowing free installation of auxiliary contacts, delay modules and mechanical interlocks. A single Magnetic AC Contactor can build diverse control schemes such as star-delta startup and motor protection, greatly lowering customers' procurement costs for cabinet accessories.

Application Fields

 

Magnetic AC Contactors are applicable to general industrial control scenarios across all industries. In the metallurgy sector, Magnetic AC Contactors are fully matched for steel rolling transmission fans and conveyor belt motors of steel mills including Magang and Baosteel. For construction machinery, they deliver stable control for power circuits of tower cranes, mixers and conveying equipment. Magnetic AC Contactors are extensively selected as power switches for sewage treatment, central air conditioning, mine ventilation, chemical stirring equipment, automated machine tools, packaging assembly lines and other equipment. Meanwhile, the products are suitable for complete cabinet export trade, with purchasing agents from the EU, Southeast Asia, the Middle East and multiple countries placing bulk orders year-round, compatible with grid operating conditions of various nations.

We have deep industry experience in industrial control components spanning 39 years, operating a standardized 2,000㎡ production plant with over 100 employees, including more than 50 professional technical backbones forming an independent R&D team capable of fully self-completing mold development, structural design and performance testing for Magnetic AC Contactors. The workshop is equipped with fully automatic winding machines, stamping machine tools, vacuum coating equipment, multiple automated assembly lines and a full set of professional test benches, with a comprehensive monthly production capacity of approximately 1,000 sets that can flexibly adjust production scheduling for bulk orders from agents. For many years, we have maintained long-term matching supply for major domestic iron and steel groups and leading industrial control enterprises, with product performance fully tested under heavy-duty industrial scenarios and mature stable supply capacity.

Closed-loop full-process quality control covers the entire production chain of Magnetic AC Contactors: copper materials, contact alloys, flame-retardant plastic and other raw materials undergo 100% sampling inspection upon arrival; exclusive inspection stations are set up for key processes including stamping, coil winding and contact welding; all finished units complete full-item testing for withstand voltage, temperature rise, switching and high-current impact before warehousing, with only 100% qualified products released for storage. We fully accept third-party on-site factory inspections; customers only need to provide on-site photos for goods damaged during transportation, and we will arrange immediate re-delivery or full compensation to completely eliminate purchasers' concerns regarding product quality and logistics.

An independent dedicated service team covers pre-sales, in-production and post-sales stages. Pre-sales engineers accurately match Magnetic AC Contactor models according to customer load working conditions and deliver complete sets of solutions. During production, workshop on-site photos and videos are synchronized regularly, with quality inspection reports actively shared at key milestones. Post-shipment, free online installation guidance is provided, and 24-hour rapid response solutions are delivered for equipment faults. The full range of Magnetic AC Contactors carry a unified one-year warranty; free replacement and repair are offered for non-artificial quality defects within the warranty period. We also conduct regular follow-up visits with overseas agents to collect on-site usage feedback and continuously iterate product performance.