Panel mount 4-mode surge protective device. Three-phase models can be wired for delta AC systems. Single high-energy solid-state semiconductor surge suppression circuitry per phase. Real-time diagnostic visual indicator shows power and suppression status for each protected phase. Standard J-box enclosure with pre-punched standard knock-outs can be easily surface mounted in typical frame construction. Feature a low VPR to ensure protection of sensitive electronic devices including LCD TVs, PDAs and computers. Compatible with Leviton Decora home controls.