3 Phase Ac Contactor

For integrated applications of small three-phase equipment and complete control cabinets, the 3 phase ac contactor serves as an ideal choice for space-limited scenarios due to its compact volume and stable performance. Our manufactured 3 phase ac contactor covers medium and small current ratings from 9A to 95A, specially designed for three-phase asynchronous motors, three-phase lighting circuits, small heating equipment and other loads with a rated operating voltage up to 690V, capable of meeting control demands of most small three-phase equipment. Compared with large-volume industrial models, this 3 phase ac contactor features drastically optimized internal structure with overall volume reduced by over 30%, effectively saving internal installation space within control cabinets, especially suitable for small complete cabinets, machine tool electrical boxes and built-in control units of equipment with restricted installation space.

This 3 phase ac contactor adopts an integrated compact structural design with symmetrical three-phase internal layout to realize synchronous switching of three phases, effectively eliminating risks of phase-loss operation. Main contacts are fabricated from silver tin oxide alloy contacts featuring low contact resistance and strong welding resistance; paired with a miniaturized grid plate arc extinguishing chamber, it can rapidly extinguish electric arcs generated during disconnection to guarantee extended product service life. Coils adopt energy-saving design with low pull-in power consumption and low operating noise, suitable for indoor equipment environments. The product supports 35mm standard DIN rail mounting with a buckle design enabling rapid installation and disassembly without tools, greatly improving on-site assembly and maintenance efficiency. Auxiliary contact modules can be mounted on the side to realize signal feedback and interlock control functions, meeting demands of diverse control circuits.

Application Fields

 

3 phase ac contactors are widely deployed for various medium and low-power three-phase equipment and complete systems. In the machine tool industry, they control oil pump motors, cooling pump motors and spindle motors of lathes, milling machines, grinders and other equipment; their compact volume is perfectly suited for narrow spaces inside machine tool electrical boxes. In packaging and food processing machinery sectors, they are extensively used for three-phase control of small conveyor belts, metering pumps and stirring motors. For construction and building sectors, small fans, water pumps, fire roller shutter doors and other three-phase equipment control circuits commonly adopt this product. Additionally, they are heavily matched with various complete distribution boxes, starter cabinets and compensation cabinets, serving as common basic components for the complete electrical industry. Our 3 phase ac contactor has become designated procurement product for numerous domestic complete equipment manufacturers thanks to stable quality and high cost performance.

The full range of our contactors have passed authoritative system and product certifications. Our factory has obtained ISO 9001 Quality Management System, ISO 14001 Environmental Management System and ISO 18001 Occupational Health and Safety Management System certifications, with all production processes strictly executed in compliance with system specifications. This 3 phase ac contactor holds CCC China Compulsory Certification and CE EU Safety Certification, fully meeting domestic and international market access requirements, and can be directly exported to most countries and regions worldwide. Quality inspection reports and certificates of conformity can be provided with every shipment to help customers rapidly complete local market access verification and reduce compliance costs for channel expansion.

We have focused on industrial control components for 39 years, possessing a complete R&D and production system for medium and low-power contactors as a professional domestic industrial electrical manufacturer. The factory covers an area of approximately 2,000 square meters with over 100 employees, including more than 50 technical R&D and quality control backbones capable of independent product iteration and customized development. The production workshop is equipped with fully automatic winding machines, precision stamping equipment, CNC lathes, automatic assembly lines and complete testing equipment, with a monthly production capacity of around 1,000 sets that can flexibly adjust production scheduling according to order demands. We have established long-term cooperation with major domestic iron and steel groups and leading industrial control enterprises, with product quality fully verified by the market.