1. The load of a transformer is the power in kVA or volt-amperes supplied by the transformer.

2. Thus, a device drawing 3 amps at 120 volts would be rated at 360 watts or 360 volt-Amperes.

3. Watts refer to “real power,” while volt-Amperes refer to “apparent power.” Both are simply the product of voltage (V) multiplied by amperage (A)