ABB OVRT22N40660PTSU Overvoltage Protection Relay

ABB OVRT22N40660PTSU is a System pro M Compact surge protection device (SPD) designed to guard downstream equipment from transient overvoltages on AC power circuits. This Type 2 SPD is configured for 2P+N connections, rated for 660 VAC at 50/60 Hz, and supports protection modes L-G, L-L, L-N, and N-G for typical 2‑to‑3‑phase systems. It delivers a high short‑circuit current capability up to 200 kA, a nominal discharge current of 10 kA, and a peak surge current of 40 kA, with an ultra-fast response time (<25 ns); the unit mounts on a DIN rail with plug‑in terminals in an IP20/NEMA 1 enclosure and includes a state/remote indicator to monitor protection status. Its compact, gray enclosure measures about 98.5 mm high, 35.6 mm wide, and 64.8 mm deep, making it suitable for panel installations where reliable, fast surge protection is required.