What is the minimum calculated branch circuit load for 6 duplex receptacle outlets rated at 20 amperes?

To determine the minimum calculated branch circuit load for six duplex receptacle outlets rated at 20 amperes, you need to consider the maximum load that each outlet can handle and apply the appropriate calculations.

Each duplex receptacle outlet can supply a maximum load of 20 amperes. To convert this amperage to voltage-amps (VA), you use the formula:

VA = Amperes × Volts

In most residential applications, the standard voltage is 120 volts. Therefore, for a single outlet rated for 20 amperes, the calculation would be:

20 amperes × 120 volts = 2400 VA.

However, since the question asks for a minimum calculated load for multiple outlets, we consider the demand factor for receptacle outlets. According to the National Electrical Code (NEC), for multiple outlets in a dwelling unit, the first 10 receptacles are considered at full load (using 180 VA for each outlet).

For six 20-amp receptacles, the minimum branch circuit load calculation is generally calculated as follows:

Minimum load for 6 duplex receptacles:

• Each receptacle is calculated at 180 VA.

• For six receptacles: 6 × 180 VA = 1080 VA