Dishwashers are typically hardwired or cord-connected to a dedicated 20A, 120V circuit shared only with the garbage disposal.
| Recommended wire | 12/2 NM-B with ground |
| Breaker | 20A single-pole |
| Voltage | 120V |
| Typical amperage | 10A |
| Circuit amperage | 20A |
| NEC reference | NEC 422.12 |
| Max recommended distance | 25 feet (without voltage drop concerns) |
NEC allows the dishwasher and garbage disposal on the same 20A circuit since they don't typically run simultaneously.