How Many Amps Does A 1500 Watt Microwave Use. For instance a microwave oven with an input wattage of 1500W operating at 120 Volts has an amperage of 125 Amps. The same inverter with a 1200 Watt load would draw 120 60 Amps which would be the same amount as a 1200 Watt inverter at load capacity.
The higher the INPUT power rating the more current the microwave oven will draw. Its around 64 Amps but the exact value depends on your electrical service and whether the manufacturer has stated an accurate power rating. A 1500-watt heater on a 120-volt circuit thus needs a breaker of 156 amps.
I managed to locate a small electric kettle at Kmart which was rated at 1250 Watts.
On the low end tiny microwaves start at around 600 watts. Larger commercial grade models may run 1800 watts or higher. The model was a. Starting watts are extra watts needed for.