The ZGZD40-18-48YM DC Power Supply SPD is a kind of level C outdoor DC surge protector. It is applied to the low-voltage DC power distribution system, and is connected between DC power supply and system equipment.

The ZGDD100-10YM AC outdoor lightning protection box is used for tertiary protection. It is applied in AC power distribution system, and connected between the AC power supply and the equipment in series.

The ZGSD120-JY three-phase Power Supply SPD has a beautiful appearance and convenient installation and connection, characterized by the overcurrent protection and trip of thermal fusing.