The Square D by Schneider Electric SDSA1175 is a hardwired Type 1 Surge Protective Device is NEMA 4X rated and is suitable for both indoor and outdoor applications. This SPD is rated at 36,000 Amp Maximum Surge Current Rating and has a intended for use with any brand of pumps, motor applications and service-entrance locations. The unit is designed for hardwired usage and features an LED to indicate its operational status.