Elecmetric

32 Amps to kW

32 A is 7.36 kW at 230 V and 3.84 kW at 120 V (single-phase, power factor 1). Table for DC and three-phase, power factor 0.8, and the formula.

Power7.36 kW

32 A at 230 V, single-phase, power factor 1 =
7.36 kW

Formula

P = V × I / 1,000 (DC) P = V × I × pf / 1,000 (single-phase) P = √3 × V × I × pf / 1,000 (three-phase)

Worked example

  1. P = 230 × 32 × 1 / 1,000 = 7.36 kW
  2. With a power factor of 0.9: P = 230 × 32 × 0.9 / 1,000 = 6.624 kW

On other supplies

SupplyVoltagePower at pf 1Power at pf 0.8
DC12 V0.384 kWnot used
DC24 V0.768 kWnot used
DC48 V1.536 kWnot used
Single-phase120 V3.84 kW3.072 kW
Single-phase230 V7.36 kW5.888 kW
Single-phase240 V7.68 kW6.144 kW
Three-phase208 V11.53 kW9.223 kW
Three-phase400 V22.17 kW17.74 kW
Three-phase415 V23 kW18.4 kW
Three-phase480 V26.6 kW21.28 kW

Three-phase rows use the line-to-line voltage. DC ignores the power factor.

What 32 A looks like

32 A is a common breaker rating for an electric cooker or a home electric vehicle charger circuit.

This is an estimate of the load current only. Choosing a cable or a breaker also needs the installation method, the ambient temperature, the voltage drop and the rules you work to.

Frequently asked questions

How many kilowatts is 32 amps?

32 A is 7.36 kW on a 230 V single-phase supply and 3.84 kW on 120 V, both with a power factor of 1. The power depends on the voltage, so it is a different answer on every supply.

What if the power factor is not 1?

The real power falls. At 230 V and a power factor of 0.9, 32 A is 6.624 kW. Heaters and filament lamps are close to 1, while motors and many power supplies are lower.

What about a three-phase supply?

32 A on 400 V three-phase at a power factor of 0.8 is 17.74 kW. The line voltage is used with the factor √3 (about 1.732).

Related

Amps to kW CalculatorkW to kVA16 A to kW63 A to kW100 A to kWCurrent ConverterConversion Centre

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