To compute the breaker size for an electric stove and oven, you'll need to determine the total electrical load they will draw. The breaker size should be sufficient to handle the maximum power demand of the appliances without tripping.
Here's a step-by-step guide to calculating the breaker size:
Check the appliance rating: Look for the nameplate or rating label on both the electric stove and oven. The rating is typically given in watts (W) or kilowatts (kW). Note down the power rating of each appliance separately.
Convert kilowatts to watts (if necessary): If the rating is given in kilowatts, multiply it by 1000 to convert it to watts. For example, if the stove is rated at 7 kW, then 7 kW * 1000 = 7000 W.
Add the power ratings: Add the power ratings of the stove and oven to get the total wattage. For example, if the stove is 7000 W and the oven is 5000 W, then the total wattage is 7000 W + 5000 W = 12000 W.
Determine the voltage: Check the voltage requirement of your appliances. In most households, the standard voltage is 120 volts for smaller appliances and 240 volts for larger ones like stoves and ovens. Make sure to use the correct voltage for your calculation.
Calculate the current draw: Divide the total wattage by the voltage to find the current draw. For example, if the total wattage is 12000 W and the voltage is 240 V, then the current draw is 12000 W / 240 V = 50 Amperes (A).
Add a safety margin: To ensure the breaker can handle the load comfortably, it's common to add a safety margin of around 20%. In this case, add 20% of 50 A to the current draw: 50 A + (0.2 * 50 A) = 60 A.
Choose the appropriate breaker size: Round up the calculated value to the nearest standard breaker size. In this case, you would select a 60-amp breaker to accommodate the electric stove and oven.
It's crucial to note that electrical work can be dangerous and may require professional expertise. If you're not confident in your abilities or unsure about the requirements, it's best to consult a qualified electrician to handle the installation and ensure everything is done safely and up to code.