Tripp Lite - Full Isolation Transformer - 500-Watt, 4-Outlet • Complete line isolation noise filtering and surge suppression • Supports combined loads up to 500 watts continuously • Faraday shield offers 100% isolation from input AC line • Removes EMI/RFI noise, utility switching transients and background spikes • Circuit breaker overload protection and lighted power switch • Rugged all-metal housing with 4 widely-spaced outlets and 6' power cord • 5 3/4" W x 6 1/4" H x 9 1/4" D