Wiring:
2 hot, 1 ground

Commonly used with:
Welders, EV chargers (older), large shop tools

Wiring:
1 hot, 1 neutral + ground

Commonly used with:
RV power (campgrounds)

Wiring:
2 hot, 1 neutral

Commonly used with:
Old electric dryers (no ground)

Wiring:

2 hot, 1 neutral

Commonly used with:
Old ovens, welders, stoves (no ground)

Wiring:
2 hot, 1 neutral + ground

Commonly used with:
Modern Dryers

Wiring:
2 hot, 1 neutral + ground

Commonly used with:
Ranges, EVs, RVs

Wiring:
2 hot, 1 neutral + ground

Commonly used with:
Small generators, transfer switches, split-phase power

Wiring:
2 hot, 1 neutral + ground

Commonly used with:
Residential backup generators, transfer panels

Wiring:
3 hot, ground

Commonly used with:
3-phase motors, pumps, industrial equipment

Wiring:
3 hot, ground

Commonly used with:
Medium-duty 3-phase machinery, HVAC units

Wiring:
3 hot, ground

Commonly used with:
High-voltage industrial motors, tools

Wiring:
3 hot, ground

Commonly used with:
Heavy-duty machinery in industrial plants

Wiring:
3 hot, ground

Commonly used with:
Very high voltage industrial loads, mills

Wiring:
3 hot, 1 neutral + ground

Commonly used with:
Wye-connected systems, commercial panelboards, event production

Wiring:
3 hot, 1 neutral + ground

Commonly used with:
3-phase power distribution, AV racks, UPS systems

Wiring:
3 hot, 1 neutral + ground

Commonly used with:
Lighting systems, high-voltage HVAC

Wiring:
3 hot, 1 neutral + ground

Commonly used with:
Commercial buildings, large HVAC and motors

Wiring:
2 hot, 1 neutral + ground

Commonly used with:
Shore power for RVs, boats, mobile trailers