The size of the breaker you need for a refrigerator depends on the electrical requirements of the refrigerator itself. In the United States, residential refrigerators typically run on 120 volts AC power and require dedicated circuits to operate safely.
To determine the size of the breaker needed for your refrigerator, you'll need to find the electrical specifications on the refrigerator's nameplate or in the owner's manual. Look for the electrical requirements, which should indicate the voltage (V) and the amperage (A) or watts (W) that the refrigerator draws during operation.
Most standard refrigerators in the U.S. require a 15-amp circuit. However, some larger or more energy-intensive refrigerators may require a 20-amp circuit. Here's what you need to do:
- Check the nameplate or owner's manual of your refrigerator to find the electrical specifications.
- Look for the voltage (typically 120 volts) and the amperage (in amps) or wattage (in watts).
- If the amperage is given, use the following formula to determine the minimum circuit breaker size: Breaker Size (in amps) = Refrigerator Amperage + 20% (for safety margin).
- If the wattage is given, use the following formula to calculate the minimum circuit breaker size: Breaker Size (in amps) = Refrigerator Wattage / Voltage + 20%.
For example:
- If your refrigerator draws 8 amps, you would need at least a 10-amp (8 amps + 20%) circuit breaker.
- If your refrigerator's wattage is 900 watts, and it operates on 120 volts, you would need at least a 8-amp (900 watts / 120 volts + 20%) circuit breaker.
Always round up to the next available standard circuit breaker size. In most cases, a 15-amp circuit breaker will be sufficient for a standard residential refrigerator. However, if your refrigerator's electrical requirements exceed 15 amps, you should use a 20-amp circuit breaker.
It's important to follow electrical codes and regulations when installing or modifying electrical circuits in your home. If you're not confident in doing electrical work, it's best to consult a licensed electrician to ensure the safety and proper installation of the circuit.