The PTRONSAF60S from NexTek, LLC. is a RF Surge Protector with Frequency DC to 2.5 GHz, Input Power 1600 W, Insertion Loss 0.2 to 0.3 dB, Operating Current 5 A, Operating Temperature -40 to 90 Degree C. Tags: Gas Discharge Tube. More details for PTRONSAF60S can be seen below.