Definition
In North America, 240V outlets use both hot legs of the split-phase residential power supply. They provide double the voltage of standard 120V outlets, allowing miners to draw the same wattage at half the amperage. Common receptacle types for mining are NEMA 6-20 (20A/240V, 4,800W max) and NEMA 6-30 (30A/240V, 7,200W max).
Most homes already have 240V circuits for dryers and ranges. Additional 240V circuits for mining should be installed by a licensed electrician with appropriate wire gauge and breaker rating for the intended load.
In Simple Terms
A high-voltage outlet providing enough power for full-size miners. Standard in homes for dryers and ranges.
A high-voltage residential outlet (NEMA 6-20 or 6-30 in North America) that provides the power capacity needed for full-size ASIC miners.