QSA2020SPD Whole House Surge Protection with Two 20-Amp 20 Amp
The 20 amp QSA2020SPD surge protection device (view larger). Once connected in the panel, the SPD device protects the entire panel and all branch circuits from surges, not just the two circuits connected to the SPD.Two green LEDs provide protection status notification, and the device will notify you of any loss of surge protection by tripping one or both of the circuit breakers.