What is vac in electrical?

In electrical engineering, VAC stands for Volts Alternating Current. It is a unit of measurement for the voltage in an alternating current (AC) electrical system. Alternating current is the type of electrical current that reverses direction periodically, typically in a sinusoidal wave pattern.

The VAC rating of a device or system indicates the voltage of the alternating current that it is designed to operate on. For example, common household outlets in the United States typically provide 120 VAC of power, while larger appliances may require 240 VAC.

VAC is important in electrical systems because it determines the amount of power that can be delivered to a device and helps ensure that the device receives the correct amount of energy to operate properly and safely. It is essential to match the VAC rating of electrical devices with the voltage provided by the power source to prevent damage to the equipment and the risk of electrical hazards.