Circa 4B6S-300e 300V 5 Pin Enhanced Digital Primary Cat5e Surge Protection TVSS.
The Circa 4B6S-300e is an advanced, 300V solid-state UL 497 primary telecommunications 5-pin Cat5e lightning protection module. The 4B6S-300e module fits any industry standard 5-pin building entrance protector housing. All models employ state-of-the-art silicon breakover technology as the active overvoltage clamping elements, along with PTC (positive temperature coefficient) overcurrent circuitry which allows normal Digital current to pass, but quickly blocks damaging fault currents. UL & cUL listed Primary
4B6S Series PDF.