● Main use: Hangzhou beam power supply grounding protector, mainly designed and manufactured according to IEC, GB standards, suitable for power supply lightning protection of low-voltage power distribution system, according to different power distribution systems (TT/TN/IT) can choose a variety of combination methods. ● Product features: automatic failure monitoring indication, standard module installation ● Customized or not: OEM is accepted, can be customized according to customer requirements.