Siwei Electric is a high-tech enterprise professionally engaged in the R&D, production and service of instruments and meters, industrial control and electronixs. We mainly produce temperature controllers, thermocouples, thermal resistor sensors and relays which are widely applied to scientific research, metallurgy, petroleum, food, plastic, chemical engineering, light and textile industries.
With strong R&D ability, experienced engineers, advanced producing equipment and reliable inspecting equipment, we have gained ISO 9001:2000 certification and all our products are with CE marks. All our products are widely sold both in domestic and overseas markets.
SWJ1 series electronic multi-function productive device is the latest electric protective relay, which is “the patented product, domestic origination”, that according to Chinese power grid situation , using self-developed core technology, advanced production techniques, the quality of products have a variety of practical functions. Having a national utility model patent, it has become the benchmark of common thermal relays.
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