CPM and CPM-R series surge protectors are products of Tianjin Zhongli Company. They are regular manufacturers, and all products have inspection reports, bar codes and serial numbers issued by authoritative organizations! There are also registered trademarks such as C-POWER and CPM-R, but the Taizhou Hehai Electric Appliance you mentioned doesn't have the above certificates at all, so there is no after-sales service for Taizhou's products, and users can't be guaranteed when using it, and it may even be dangerous. It is recommended to choose the regular products of Zhongli Company.

CPM series pluggable modules are SPD devices for surge protection in special and AC low-voltage 38V systems, where induced lightning waves or other reasons cause overvoltage, overcurrent and surge interference to damage electrical equipment.

CPM-R series is a new generation of professional protection products with built-in circuit breakers to suppress overvoltage, overcurrent and surge caused by induced lightning or other reasons in the power supply network. It is suitable for the electrical equipment in the power supply network with AC)5Hz rated working voltage of 38V and below to be protected from various voltage surges.