PTG composite lightning current protectors can achieve energy coordination with Type 2 surge protectors (SPDs) without connecting additional cables or decoupling coils. They are widely used in wind power supply systems, low-voltage equipment protection for buildings, AC side of photovoltaic power systems, communication base stations, generator sets, high-end building electrical systems, etc., greatly improving the reliability and safety of electrical equipment.

The PE …25W1-10R series adopts PTG's patented technologies, featuring excellent performance such as high continuous operating voltage, no follow current, and low voltage protection level. It has unique functions including tripping, local and remote alarms, and is applicable to power distribution systems up to 1000 Vac.

The PTE 320 series composite Type 1 surge protectors, with exclusive patented technologies, boast a maximum lightning current discharge capacity of 100 kA (10/350 μs), no follow current, and the ability to directly protect terminal equipment, representing the world's highest technical level. This series features an ultra-compact size, with only one module width per phase (18 mm); equipped with main circuit tripping technology to ensure high reliability and low risk of equipment; local and remote alarms provide real-time online status monitoring; and no follow current technology ensures high reliability of power grid systems, among other advantages.

Composite lightning current SPDs are typically installed in lightning protection zone LPZ 0B-2.