How Many Amps Is 15 kVA at 24V?
15 kVA at 24V DC draws 625 amps. At DC there is no power factor distinction, so 15 kVA equals 15 kW of real power. At 24V this is a very high current and implies specialized equipment like an EV traction battery, large solar inverter input, or an industrial DC power supply.
15 kVA equals 625 amps at 24 volts (DC)
625 Amps
At DC, kVA = kW (no power factor).
High-current context: 625A at 24V is far beyond a standard branch circuit. Conductor sizing, termination hardware, and protection at this level are specialty items. This page gives the raw conversion; do not use it as a wiring or breaker sizing guide. For any real installation, follow the equipment manufacturer's spec and local code, and consult a qualified installer.
Use this citation when referencing this page.
Assumes a DC circuit at the input voltage. kVA is apparent power, so no power factor term is involved.
Formulas
DC
I(A) = (kVA × 1000) ÷ V
(15 × 1000) ÷ 24 = 15,000 ÷ 24 = 625 A
At DC there is no reactive power, so kVA and kW are the same. The "apparent power" concept only applies to AC systems with phase shift between voltage and current.
Other kVA Ratings at 24V
Frequently Asked Questions
15 kVA at 24V DC is 625 amps. At DC there is no reactive component, so kVA equals kW (15 kW of real power).
Examples include large trolling motors, winches, starter motors during cranking, EV DC-DC converters, industrial plating or electrolysis cells, and the DC input side of large off-grid solar inverters. General-purpose 12V automotive accessories are nowhere near this level.
No. Power factor only exists in AC systems where voltage and current can be out of phase. On a DC circuit, V and I are in phase by definition, so kVA and kW describe the same thing.
Power is P = V × I. For the same power, halving the voltage doubles the current. At 24V the same 15 kVA that would draw only 62.5A at 240V draws 625A. This is why battery and solar systems use high DC voltages (48V, 400V, 800V) as capacity increases -- to keep current manageable.
Current at this magnitude is beyond normal branch-circuit wiring. Real installations use large-cross-section cables, bus bars, or multiple parallel conductors with specialty lugs, and the conductor size is driven as much by voltage-drop over the run length as by ampacity. Follow the equipment manufacturer's spec and local code; treat this page as a conversion reference, not a wiring guide.
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.