Glossary

EV charging modes 1, 2, 3 and 4 (modos de carga)

The four ways of connecting an electric car to the grid under standard UNE-EN 61851-1: mode 1, socket with no control; mode 2, the car cable; mode 3, a wallbox on AC; mode 4, a DC rapid charger.

The EV charging modes

EV charging modes are defined by standard UNE-EN 61851-1 and included in ITC-BT-52. They describe how the car is connected, whether it communicates with the charger and which protection is involved.

ModeConnectionTypical powerReal use
1Normal socket up to 16 A, no communication2.3 to 3.7 kWIn practice not allowed for cars; e-bikes and light scooters only
2Socket with the car cable, which has a control and protection box2.3 to 3.7 kWOccasional or emergency charging
3Fixed station (wallbox) on AC with pilot control3.7, 7.4, 11 and 22 kWThe standard at home, in communities, hotels and businesses
4External DC charger connected to the battery50 to 400 kWCharging stations, fleets and hubs

Which to use

  • Mode 2 on a normal socket: fine to get by, but the cable limits it to 10 A (2.3 kW) and a Schuko socket is not built to carry that current for hours. Not for daily use.
  • Mode 3: what an electrician fits at home. At 7.4 kW, a 60 kWh battery goes from 20 to 80 % in about 5 hours.
  • Mode 4: rapid charging on the road, with a CCS Combo 2 connector. Used daily, it degrades the battery most; slow AC charging is the gentlest.

When to call an electrician

If you charge every day from a normal socket or a power strip, get it checked: the right answer is a reinforced socket on its own circuit or, better, a mode 3 wallbox with a dedicated circuit and protection. See home EV charger for a house and, for business rapid charging, EV charging for fleets in Seville, Spain.

Need an electrician in Seville, Spain?

Call us or send a WhatsApp message with a photo of the job. You get a fixed quote before any work starts.