The onboard series is a unique line with ultra slim size for space saving requirement.

It is specially designed for telecommunication industry. By adopting multi-layer spark gap technology with over 10 layers graphite electrode square lamination, it has high-efficiency discharge and arc extinguishing ability and ensures an excellent voltage protection level lower than 2 kV. They are widely used in 4G/5G PDU and power supply of telecommunication.

PV onboard series is especially designed for PV power industry. The ingenious design of Anti-arc technology with large arc extinguisher provides the fast heat conduction by the low-temperature solder joint, and the large creepage distance (> 10 mm) after the disconnection, which greatly improving the tripping sensitivity and reducing the fire risk. The visual status indication of the local red and green window and the remote signaling alarm of the floating switching dry contact effectively indicates the working status of the SPD, providing a user-friendly maintenance interface. Meantime, PTG also provides Type 1+ Type 2 PTV onboard series to match the different requirements.