The Circa Industrial 2606QC Surge Suppressor is a 6-pair telecom surge protector designed for 66-block installations, providing frontline over-voltage protection for up to six telephone lines in small commercial or residential systems. It features six input/output connections in the 66-style IDC format, an internal fuse link per pair, and an external ground terminal that accepts 6–14 AWG conductors for a reliable earth ground path. Housed in a rugged 16 AWG powder-coated steel enclosure for durable mounting in telecom closets, distribution frames, or building entrances, the 2606QC/QC is UL 497 approved and intended to protect critical voice lines from transient surges.
