Inverter Size for a 700 Watt Microwave: A Comprehensive Guide
When choosing an inverter for a 700 watt microwave, it’s crucial to understand the specific power requirements and how to properly size the inverter. This guide will walk you through the necessary calculations and considerations to ensure your inverter meets the needs of your microwave effectively.
Understanding Microwave Power Rating
The microwave is rated at 700 watts, but it may require more power to start up due to the surge current or peak power. This initial surge can be two to three times the rated power, which is essential to consider for accurate inverter sizing.
Calculating Inverter Size
Running Power
The running power of the microwave is 700 watts. This is the power the microwave will consume while it is in operation. However, for a safe and reliable performance, the inverter needs to handle more than just the running power.
Surge Power
The surge power, or peak power, is calculated by multiplying the running power by 1.5 to 2. In this case, the recommended calculation would be:
Surge Power 1.5 x 700 watts 1050 watts
This minimum recommended inverter size ensures that the inverter can provide enough power for both the running and surge requirements of the microwave.
Recommendation for Inverter Size
A 1200-watt inverter would be a safe choice, providing ample power not only for the running and surge requirements but also with some extra capacity for potential future use.
Additional Considerations for Inverter Selection
Continuous Output
Ensure the inverter has a continuous output rating that meets or exceeds 700 watts. This is crucial to prevent damage to the microwave and ensure smooth operation.
Battery Capacity
Consider the capacity of your battery to handle the load and provide sufficient runtime based on your needs. A more powerful inverter will require a more robust battery to function optimally.
Inverter Type
A pure sine wave inverter is highly recommended for sensitive electronics like microwaves. Pure sine wave inverters provide cleaner power compared to modified sine wave inverters, which are less likely to cause damage or performance issues with your microwave.
Basic Electrical Calculations
To further understand the inverter size, it’s helpful to grasp some basic electrical calculations. If you are using a 12-volt source, you can calculate the required amps by dividing the 700 watts by 12 volts. This calculation gives you approximately 58.33 amps (assuming 100 percent efficiency in the inverter).
Conclusion
By following these guidelines, you can select an appropriate inverter for your 700-watt microwave. Ensuring that the inverter can handle both the running and surge power requirements will help to prevent any potential issues and guarantee smooth operation.
For more detailed information and to choose the best inverter for your specific needs, consult with a professional or refer to the manufacturer’s specifications of your microwave and inverter.