Tripp Lite IS500HG Isolation Transformer 500W Medical Surge 120V 4 Outlet TAA GSA Complete line isolation, noise filtering and surge suppression; ideal for sensitive equipment 500 watts, 4 5-15R-HG hospital outlets, 10-ft. power cord with NEMA 5-15P-HG plug Internal low-impedance isolation transformer with Faraday shield offers 100% isolation from the input AC line Leakage less than 100 microamps 2 year warranty