How Many Amps Is 340.59 kW at 208V?

At 208V, 340.59 kW pulls approximately 1,112.21 amps on AC three-phase (PF 0.85). This is the case typical for commercial HVAC, industrial motors, rooftop units, and three-phase panel loads. Always verify against the equipment nameplate for actual install sizing.

340.59 kW at 208V, AC three-phase (PF 0.85)

1,112.21 Amps

340.59 kilowatts at 208V on AC three-phase ≈ 1,112.21 amps

AC Single Phase (PF 0.85)1,926.4 A

DC (ideal baseline)1,637.44 A

Try: 200kW at 208V 150kW at 208V 125kW at 208V 100kW at 208V

Volts

Amps (AC three-phase, PF 0.85)

1,112.21

Formulas

DC: kW to Amps

I_(A) = 1000 × P_(kW) ÷ V_(V)

1000 × 340.59 ÷ 208 = 340,588 ÷ 208 = 1,637.44 A

AC Single Phase (PF = 0.85)

I_(A) = 1000 × P_(kW) ÷ (PF × V_(V))

340,588 ÷ (0.85 × 208) = 340,588 ÷ 176.8 = 1,926.4 A

AC Three Phase (PF = 0.85)

I_(A) = 1000 × P_(kW) ÷ (√3 × PF × V_L-L), where V_L-L is the line-to-line voltage

340,588 ÷ (1.732 × 0.85 × 208) = 340,588 ÷ 306.22 = 1,112.21 A

Equipment & Circuit Sizing

Energy Cost

340.59 kW costs $57.90/hour at $0.17/kWh (rates last reviewed April 2026). See breakdown.

Power Factor Reference (AC three-phase)

How the line current for 340.59 kW at 208V changes with load power factor, on the same AC three-phase circuit basis the rest of the page uses. DC has no power factor; PF 1.0 represents resistive AC loads.

Load Type	PF	340.59 kW at 208V (AC three-phase)
Resistive (heaters, incandescent)	1	945.38 A
Fluorescent lamps	0.95	995.13 A
LED lighting	0.9	1,050.42 A
Synchronous motors	0.9	1,050.42 A
Typical mixed loads	0.85	1,112.21 A
Induction motors (full load)	0.8	1,181.72 A
Computers (without PFC)	0.65	1,454.43 A
Induction motors (no load)	0.35	2,701.08 A

AC Conversion Comparison

On DC, 340.59kW at 208V draws 1,637.44A. AC single-phase at PF 0.85 pulls 1,926.4A because reactive current is added on top of the real power. Three-phase at the same voltage needs only 1,112.21A per line since the same 340.59kW is shared across three conductors instead of one.

Circuit Type	Formula	Result
DC	340,588 ÷ 208	1,637.44 A
AC Single Phase (PF 0.85)	340,588 ÷ (0.85 × 208)	1,926.4 A
AC Three Phase (PF 0.85)	340,588 ÷ (1.732 × 0.85 × 208)	1,112.21 A

Other kW Values at 208V

kW	AC 3-Phase per line, PF 0.85	AC 1-Phase PF 0.85
15 kW	48.98 A	84.84 A
18 kW	58.78 A	101.81 A
20 kW	65.31 A	113.12 A
22 kW	71.84 A	124.43 A
25 kW	81.64 A	141.4 A
30 kW	97.97 A	169.68 A
35 kW	114.29 A	197.96 A
40 kW	130.62 A	226.24 A
50 kW	163.28 A	282.81 A
60 kW	195.93 A	339.37 A
75 kW	244.92 A	424.21 A
100 kW	326.56 A	565.61 A
125 kW	408.19 A	707.01 A
150 kW	489.83 A	848.42 A
200 kW	653.11 A	1,131.22 A

Same kW, Other Voltages

Each destination page leads with the interpretation most common for that voltage, so the amps shown below use the same basis as the page you'd land on: single-phase for residential voltages, three-phase for commercial/industrial panel voltages, DC for low-voltage.

electrical_services 340.59 kW at 400V = 578.35A (3-phase) electrical_services 340.59 kW at 460V = 502.91A (3-phase) electrical_services 340.59 kW at 480V = 481.96A (3-phase) electrical_services 340.59 kW at 575V = 402.33A (3-phase)

Related Calculations

bolt 340,588W to amps at 208V payments 340,588W running cost cable Wire size for 1,112.21A at 208V (3Φ)

Frequently Asked Questions

How many amps is 340.59 kW at 208V?expand_more

340.59 kW at 208V draws about 1,112.21 amps on an AC three-phase circuit at PF 0.85. Alternate cases at the same voltage: 1,637.44A on DC, 1,926.4A on AC single-phase.

How does three-phase affect the amps for 340.59 kW?expand_more

Three-phase at 208V draws 1,112.21A per line versus 1,926.4A single-phase. Less current per conductor means smaller wire and lower I²R losses.

What is 340.59 kW in watts?expand_more

340.59 kW equals 340,588 watts. Multiply kilowatts by 1000.

What is the formula for kW to amps?expand_more

DC: Amps = (kW × 1000) ÷ Volts. AC single-phase: Amps = (kW × 1000) ÷ (Volts × PF). AC three-phase: Amps = (kW × 1000) ÷ (Volts_L-L × √3 × PF).

Is 340.59 kW single-phase or three-phase?expand_more

340.59 kW is typically three-phase in commercial and industrial settings.

This calculator provides estimates for reference purposes only. Always consult a licensed electrician and verify compliance with the National Electrical Code (NEC) and local electrical codes before performing any electrical work.