ME PC Board Mounting Filters Delta Electronics / Power ME PC Board Mounting Filters offer a 1A to 15A current rating and mount directly to PCBs for easy installation and space savings. These filters are UL recognized and CSA certified. The ME4/P version is also TUV approved, while all other models are VDE approved. Delta ME PC Board Mounting Filters have a 50Hz/60Hz operating frequency and 115VAC/250VAC rated voltage. The hipot ratings (1 minute) are 2250VDC for line-to-ground voltage and 1450VDC for line-to-line voltage.