A unit of electrical current. Electric circuits are rated in AMPs for a given voltage, for example, e.g., “A 110 volt, 15 AMP circuit”. The capacity of the main breaker in a building is the measure of the electrical service, “100 AMP service”. The “AMP draw” of an electrical device can be determined with the formula: AMPs = Watts / Volts. For example, a 1,500 watt electric heater on 110 volt current will draw 13.6 AMPs.

« Back to Glossary Index