
En 20kA 3P+N GDT AC surge protective device is a compact, high-efficiency surge protector for three-phase + neutral AC systems.
It combines GDT discharge tubes with MOV ZnO varistors, providing strong lightning protection and low let-through voltage.
The body is made from PVC/PA66/PBT, compliant with IEC 61643-11:2011 / EN 61643-11:2022, and certified by CE & TUV.
We are a factory-based OEM/ODM surge protective device manufacturer, providing wholesale, bulk buy, and in bulk services.
Ideal for AC distribution boxes, solar inverter systemsy control cabinets, supporting 35mm DIN rail installation.






