Main Page | See live article | Alphabetical index VAC is an acronym for volts of alternating current. It is not the same as VA for volt-amps. Care must be taken not to connect AC motors or transformers to direct current (DC) sources, as they can be seriously damaged by doing so. This is mostly a concern when dealing with low voltages, as normal electrical outlets almost always carry AC. The voltage number itself is most important, as a device must never be connected to a supply higher than the device is rated to handle, or with a voltage switch set incorrectly. VAC is also the callsign for a radio station on the west coast of Canada at Comox, operated by the Canadian Coast Guard. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.