ZHEJIANG FIVE-STAR SCIENCE&TECHNOLOGY CO., LTD (hereafter abbreviated as F&S)was established in 1995, it is the specialized manufacturer of modular electric terminal devices for household and similar installations. The range products including Miniature Circuit Breaker (MCB), Residual Current Circuit Breaker (RCCB), Residual Current Circuit Breakers with Overcurrent Protection (RCBO), Switch-disconnector, Distribution Box etc. In China, F&S takes the reputation as the largest manufacturer of electro-magnetic type RCCB and RCBO etc. OEM or ODM projects are fully accepted, and currently the company is co-operating with numbers of renowned international corporations for such projects. Our product passed Laboratory test and obtained safety approvals: CE, SEMKO, KEMA, IRAM and CB. And we strictly follows the standard of ISO9001 quality and managing system in the process of manufacture, marketing and service. 

We're also an expert in developing and manufacturing residual current relays. F&S now has the other two sister companies which is specialized in manufacturing of MCBs and other related electrical products, F&S is well equipped with testing apparatus to guarantee effective and sufficient quality control. e. g. Critical tests are able to be performed. Such tests include electro-mechanical, temperature rising, overcurrent characteristics, residual current operation, power frequency withstand voltage, resistance to abnormal humidity and heating, resistance to mechanical impact and vibration and electric shock protection test etc. 

F&S is dedicated to adding value for our customers by developing innovative products and providing customer-focused services. Hope to be your long-term business cooperator either as a reliable supplier or as a close ODM/OEM partner on the road to the brilliant future. 

As for hardware products, we have the other factory in Jiaxing City, Zhejiang. For further details, please kindly visit our website.