Schneider Electric SDSA1175 Surge Protective Device

The SDSA1175 Surge Protective Device from Schneider Electric (Square D Surgelogic) is a hard‑wire, whole‑house SPD designed to protect every downstream load by clamping voltage spikes at the service entrance. It is specified for 120/240 VAC single‑phase service (1P3W) with a 36 kA surge rating, a maximum line‑to‑line voltage of 1200 V and line‑to‑neutral rating of 700 V, and a MCOV of 150 V. The enclosure is rated NEMA 4X for indoor or outdoor installation and it carries a 100 kA SCCR. Installations can be hard‑wired to the load center or mounted in Square D QO or Homeline panels using the QOSAMK mounting kit.