Category Power & Electrical Requirements

Power determines cut capacity and reliability. Dual-voltage plasma cutters draw fewer amps and cut thicker on 240V than 120V. Check the nameplate/input current at your target output and duty cycle, then match a dedicated circuit and breaker (small 120V units often need 20A; mid/heavy 240V machines commonly require 30–50A—follow your manual). Keep extension cords short and heavy-gauge (10–12 AWG / 2.5–4 mm²) to limit voltage drop. Power-factor-corrected (PFC) models run steadier on long cords and generators. If using a generator, choose clean power with continuous watts ≈2–3× the cutter’s input kW and good voltage regulation. Verify plug/receptacle type, grounding, and local electrical codes—or consult a qualified electrician.