If the EV-ACT5006T is the charger you are building toward, the prewire has one driving number: 48 A. EV charging is a continuous load, so the circuit is sized at 125 percent — a 60 A breaker for a 48 A charger. Prewiring for this unit means specifying that 60 A circuit, panel space to hold it, and a route to where the car parks, all while the walls are still open.
Key Takeaways
- Prewiring for a 48 A charger means a 60 A circuit — the NEC 125 percent continuous-load pairing.
- A standard 14-50 “EV-ready” package supports 40 A, one step short of this unit’s full output.
- Fix panel space, the cable route and the mounting position while the walls are open.
- Hardwired versus receptacle is a rough-in decision; it is expensive to revisit after drywall.
Start From the Circuit, Not the Charger
Many new-build “EV-ready” packages stop one rung below what a 48 A charger wants. The three prewire targets look like this; the breaker size guide explains the pairings behind them.
| Prewire target | Breaker | Charging it supports |
|---|---|---|
| Conduit only, panel space reserved | None yet | Nothing until wire is pulled and a breaker fitted |
| Wired circuit with a NEMA 14-50 receptacle | 50 A | 40 A plug-in charging |
| Wired circuit ready for hardwiring | 60 A | The full 48 A of the EV-ACT5006T — 11.5 kW at 240 V |
The middle row is a perfectly good setup for a 40 A charger. It is only a compromise if the 48 A unit is the plan — and it is far cheaper to move up a row during construction than after handover.
What to Put on the Builder’s Spec
- Panel capacity and space. Ask for service and panel capacity that leaves a two-pole space for a 60 A breaker; panel capacity explained shows what decides this.
- The run itself. A conduit or cable route from the panel to the charging wall, sized by the builder’s electrician for a 60 A circuit — and, while the route is open, a second run for a future car costs little to add.
- Mounting position by cable reach. The charger’s cable is 7.6 m, so fix the unit’s position by where the car’s charge port lands, parked either way round — not by which wall is convenient to wire.
- Exposure decided now. Garage wall or outside wall changes the mounting and routing detail; the unit itself is IP65/IP66, so the choice is about the installation, not the hardware.
- It in writing. Have the circuit size, breaker and route recorded on the electrical plan in the handover paperwork.
Hardwired or Receptacle: Decide Before Drywall
Hardwiring is the only route to this charger’s full 48 A. A NEMA 14-50 receptacle gives plug-in flexibility — any compatible charger can use it — at a 40 A ceiling. Neither is wrong, but the fork belongs at rough-in stage: changing it later is an electrician’s visit into finished walls, while during construction it is a line on a spec sheet. Our guide to EV-ready new construction and building codes covers the readiness tiers codes are moving toward, and where to install a home EV charger covers position in more depth.
The EV-ACT5006T is a 48 A NACS Level 2 wall charger, hardwired or NEMA 14-50P, with a 7.6 m cable and IP65/IP66 sealing. Prewire to the 60 A row above and either form drops in at fit-out; more home setups are on our residential charging page.
Frequently Asked Questions
My builder’s standard package is a 14-50 receptacle. Is that enough?
For 40 A charging, yes — a plug-in charger works from day one. For this charger’s full 48 A, ask for the 60 A hardwired circuit instead, and ask before drywall, when the change is cheapest.
Can a 60 A prewire serve a smaller charger later?
Yes. A larger circuit runs any smaller Level 2 charger; the charger is simply set to the lower current. What must match the car is the connector — this unit is NACS.
Who does the prewire and the final fitting?
The builder’s licensed electrician does the rough-in wiring, and the charger fitting and any inspection follow your local rules. Confirm with the builder and the local building department what applies to your home.
Related Reading
- EV-Ready New Construction: 2026 Building Codes and the Real Cost of Waiting
- What Size Breaker Do I Need for an EV Charger?
- What Size EV Charger Can I Have at Home? Panel Capacity Explained
- Where Should You Install a Home EV Charger?
