JBTGQ is used as the protection of electrical equipment in case of overvoltage and undervoltage of single-phase or three-phase line caused by neutral line fault. It is mainly used for the protection of incoming lines of residential household distribution boxes or distribution lines that need to protect single-phase or three-phase electrical equipment.
According to the rated current, there are: 25A, 32A. 40A, 50A, 63A;
According to the product pole number, there are: 1P+N, 3P+N;