Image is Representational - See Manufacturer Specs | Decora Plus Surge Protective Isolated Ground Duplex Receptacle Outlet Commercial Specification Grade 20 Amp 125 Volt Back or Side Wire NEMA 5-20R 2-Pole 3-Wire Self-Grounding - Ivory Levitons Surge Protection Devices can be used individually or as part of a coordinated application strategy to protect sensitive electronic equipment in industrial commercial and residential locations from the stress and degradation inflicted by volta