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Our History

Why Choice UPUN ?

Headquartered in Shanghai, China, UPUN was founded in 1995 by a team of professionals who had gained experience working for similar companies and other electrical component manufacturers.  During that time we were able to gain knowledge from customers as to what they were design and innovation . Armed with that work experience and customer knowledge, UPUN went about designing a new product accepted by Electricity Authority of Tianjin,China.Then establish a company(now is UPUN) specialized in Electric. 
Now UPUN design a complete line of power supply switches, PLC photoelectric relay module, analog signal isolator, transmitter, explosion-proof barrier, SPD (lighting-proof), control buttons, signal lamp, power factor compensator, over-voltage protection, interface module, terminal blocks, bus-bar, terminals and other accessories that involve 39 product lines and more than ten of thousands of product configurations and specifications. 
Over the past 17 years UPUN has done business with over 3,000 companies in the United States, Brazil, Mexico ,Singapore and elsewhere around the world.  The quality of the UPUN products is evident in the materials, the features and the design.  In fact, for many products the customer cannot tell the difference when visually looking at the products, whether you are comparing this product line to Phoenix Contact® or any other supplier, “If you cannot tell the difference, Don’t pay the difference!”