25 kW to Amps — How Many Amps Is 25 kW?
25 kW equals 104.17 amps at 240V (single phase) or 60.14 amps at 240V 3-phase. Common 25kW loads: Large tankless water heater, commercial kitchen.
25 kW to Amps
104.17 A
at 240V single phase
25 kW Amps at Every Voltage
| Voltage | 1-Phase | 3-Phase |
|---|---|---|
| 120V | 208.33A | 120.28A |
| 208V | 120.19A | 69.40A |
| 240V | 104.17A | 60.14A |
| 277V | 90.25A | 52.11A |
| 480V | 52.08A | 30.07A |
The Formula
Single Phase: Amps = (kW × 1000) ÷ Volts. For 25 kW at 240V: (25 × 1000) ÷ 240 = 104.17A.
Three Phase: Amps = (kW × 1000) ÷ (Volts × 1.732). For 25 kW at 240V 3φ: (25 × 1000) ÷ (240 × 1.732) = 60.14A.
Wire and Breaker for 25 kW
At 240V single-phase (104.2A), recommended: 1 AWG copper with a 110A breaker. Use our Wire Size Calculator for exact sizing.
Disclaimer: Calculations for reference. Consult a licensed electrician.