The SurgeX Powerframe 420 provides surge protection and power conditioning for audio, video, broadcast, and computer equipment. The Powerframe 420 unit is a compact 80A load center for multi-branch circuit applications. It offers 4 independent 20A circuits in a 16 x 12 x 4" magnetic shielding NEMA enclosure and meets code for use at the service entrance, sub-panels, and in-ceiling plenums. The unit features both common mode and normal mode Impedance Tolerant EMI/RFI filtering for a comprehensive power conditioning solution. The SurgeX Advanced Series Mode technology is completely non-sacrificial. The zero let-through technology provides the most reliable protection available. It stops all surges up to 6,000V (unlimited surge current) without producing harmful side effects such as ground contamination or common-mode disturbances.