Jiangsu Changsheng Electric Appliance Co., Ltd. has been dedicated to manufacturing electric safety device since 1997. There are now mainly 3 products provided in Changsheng: thermal overload relay, disc thermostat, and thermal fuse. We are committed to offering users reliable and comprehensive circuit safety and thermal protection solutions.

Changsheng is located in the High-tech Development Zone of Changzhou, which is near Shanghai and Nanjing. Apart from the Port of Changzhou, we have the Grand Canal running across the city. Our production base is divided into 3 large factories. Among all of our 1200 employees, there are about 250 technicians and managers. Changsheng has the capacity of producing 400 million thermal overload relays every year, making us the largest thermostat manufacturer in China.

Applications & Partners
Changsheng thermal protector is widely applied in household appliance motor, heater, lamp, ballast resistor, vacuum cleaner, car seat heating pad, spot welding machine, battery pack, and power supply system, etc.

Some of the partners we have cooperated with: Midea, Gree, Haier, Zhongshan Broad-Ocean, Hanyu, Leili, Zhenjiang Dongfang, PANASONIC, LG, NIDEC, ASKOLL, GENTHERM, IGB, PEPI, HANNING, EMICOL, and AMETEK, etc.

Up to now, the overall share of Changsheng thermal protector in Chinese market has reached 60%-70%. Besides, our products have been exported to many regions and countries, like the United States, the European Union, the United Kingdom, Brazil, Argentina, Mexico, Russia, Ukraine, Thailand, Japan, and Korea.

Quality Commitment
Changsheng has passed ISO9001, ISO14001, and TS16949 certificates, and all of our products have been certified by UL, VDE, KC, CE, and CQC. To ensure the product quality, we purchase raw materials only from some trustworthy suppliers in Japan and America. The raw materials have been tested to be in conformity with the RoHS and REACH environmentally-friendly standards. A strict quality inspection system is conducted throughout the whole production process. The combination of advanced manufacturing and testing equipment, professional technique and automatic production line, has provided a solid guarantee for the quality of our thermal protection device.