A 1,000-watt microwave typically does not require a dedicated circuit. Most residential electrical circuits can handle the power demands of a 1,000-watt microwave without any issues. However, it's important to consider the overall load on the circuit and the electrical capacity of your home.
In general, kitchen appliances draw a significant amount of power, and multiple high-power appliances operating simultaneously on the same circuit can overload it, causing the circuit breaker to trip. Therefore, it's advisable to avoid running other high-power appliances, such as toaster ovens, coffee makers, or electric grills, on the same circuit while using the microwave.
To determine if a dedicated circuit is necessary, you should consider the specific electrical setup of your kitchen and consult a qualified electrician. They will assess the overall electrical load, circuit capacity, and wiring of your home to ensure that it meets the requirements for safely operating the microwave and other appliances in your kitchen.