The PF-420 is the perfect protection solution for multi-circuit residential AV systems where space is at a premium. This compact 120 Volt / 80 Amp load center is hardwired as a subpanel at the service panel or the equipment room and is designed to provide robust protection required for multi-branch circuit applications. Engineered with professional grade Advanced Series Mode® Surge Elimination Technology and Impedance Tolerant® EMI/RFI noise filtering, the PF-420 is the only NEMA enclosure protection product in the market that eliminates surges and transients that can degrade AV system performance.