How Many Amps Is 17.4 kW at 24V?

17.4 kW at 24V draws about 725 amps on an DC circuit at PF 0.85, typical for solar arrays, battery banks, and DC industrial equipment. Actual current varies with equipment power factor and duty cycle.

17.4 kW at 24V, DC (PF 0.85)

725 Amps

17.4 kilowatts at 24V on DC ≈ 725 amps

AC Single Phase (PF 0.85)852.94 A

Try: 18kW at 24V 15kW at 24V 20kW at 24V 22kW at 24V

Volts

Amps (DC)

725

Formulas

DC: kW to Amps

I_(A) = 1000 × P_(kW) ÷ V_(V)

1000 × 17.4 ÷ 24 = 17,400 ÷ 24 = 725 A

AC Single Phase (PF = 0.85)

I_(A) = 1000 × P_(kW) ÷ (PF × V_(V))

17,400 ÷ (0.85 × 24) = 17,400 ÷ 20.4 = 852.94 A

Equipment & Circuit Sizing

Energy Cost

17.4 kW costs $2.96/hour at $0.17/kWh (rates last reviewed April 2026). See breakdown.

Power Factor Reference (DC)

How the line current for 17.4 kW at 24V changes with load power factor, on the same DC circuit basis the rest of the page uses. DC has no power factor; PF 1.0 represents resistive AC loads.

Load Type	PF	17.4 kW at 24V (DC)
Resistive (heaters, incandescent)	1	725 A
Fluorescent lamps	0.95	725 A
LED lighting	0.9	725 A
Synchronous motors	0.9	725 A
Typical mixed loads	0.85	725 A
Induction motors (full load)	0.8	725 A
Computers (without PFC)	0.65	725 A
Induction motors (no load)	0.35	725 A

AC Conversion Comparison

On DC, 17.4kW at 24V draws 725A. AC single-phase at PF 0.85 pulls 852.94A because reactive current is added on top of the real power.

Circuit Type	Formula	Result
DC	17,400 ÷ 24	725 A
AC Single Phase (PF 0.85)	17,400 ÷ (0.85 × 24)	852.94 A

Other kW Values at 24V

kW	DC Amps	AC 1-Phase PF 0.85
3 kW	125 A	147.06 A
3.5 kW	145.83 A	171.57 A
4 kW	166.67 A	196.08 A
5 kW	208.33 A	245.1 A
6 kW	250 A	294.12 A
7.5 kW	312.5 A	367.65 A
8 kW	333.33 A	392.16 A
10 kW	416.67 A	490.2 A
12 kW	500 A	588.24 A
15 kW	625 A	735.29 A
18 kW	750 A	882.35 A
20 kW	833.33 A	980.39 A
22 kW	916.67 A	1,078.43 A
25 kW	1,041.67 A	1,225.49 A
30 kW	1,250 A	1,470.59 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 17.4 kW at 120V = 170.59A (1-phase) electrical_services 17.4 kW at 208V = 56.82A (3-phase) electrical_services 17.4 kW at 220V = 93.05A (1-phase) electrical_services 17.4 kW at 230V = 89A (1-phase) electrical_services 17.4 kW at 240V = 85.29A (1-phase) electrical_services 17.4 kW at 400V = 29.55A (3-phase) electrical_services 17.4 kW at 460V = 25.69A (3-phase) electrical_services 17.4 kW at 480V = 24.62A (3-phase) electrical_services 17.4 kW at 575V = 20.55A (3-phase)

Related Calculations

bolt 17,400W to amps at 24V payments 17,400W running cost cable Wire size for 725A at 24V

Frequently Asked Questions

How many amps is 17.4 kW at 24V?expand_more

17.4 kW at 24V draws about 725 amps on DC. Alternate cases at the same voltage: 852.94A on AC single-phase.

How many amps does a 17.4 kW EV charger draw at 24V?expand_more

At 24V, this is Level 1 territory (120V AC, single-phase, typically 12-16A). A 17.4 kW draw on a standard 120V household outlet is at or above the 1,440W NEC 210.19(A) continuous figure, which is why Level 1 EVSE ships at 1.4-1.9 kW and takes 20+ hours for a full charge. If you need 17.4 kW of charging, you want Level 2 on a 240V dedicated circuit, not 120V.

What is 17.4 kW in watts?expand_more

17.4 kW equals 17,400 watts. Multiply kilowatts by 1000.

What size breaker would I need for 17.4 kW at 24V?expand_more

This is a sizing question, not a conversion question, and there is no single correct answer from a page like this. Breaker selection depends on the equipment nameplate FLA, whether the load is continuous (NEC 210.19(A) applies the 125% continuous-load rule), the conductor ampacity and temperature rating, any NEC 430/440 motor or HVAC provisions, and local code interpretation. Use the nameplate and a licensed electrician for the real install value; use this page only for the current-draw estimate that feeds into that process.

How does power factor affect the amps for 17.4 kW at 24V?expand_more

On AC single-phase, current scales inversely with power factor. At PF 1.0 (pure resistive, like a heater), 17.4 kW at 24V draws 725A. At PF 0.80 (typical induction motor), the same real power draws 906.25A. The extra current is reactive and does no real work, but still flows through the wire and the breaker.

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.