An EV charger cannot simply be wired to the same circuit as a dryer and used freely, because both are significant loads that would overload the circuit if they drew power at once, but a circuit sharing device can let an EV charger safely share a dryer’s 240-volt circuit by ensuring only one draws power at a time. So the answer is no to naive sharing, but yes with the right device. Understanding this helps homeowners use an existing dryer circuit for EV charging where appropriate.
Here is whether an EV charger can share a circuit with a dryer.
Not by simply wiring both to one circuit
You cannot simply connect an EV charger and a dryer to the same circuit and use them normally. Both are significant 240-volt loads, and if both drew power at the same time, the combined draw would overload the circuit, which is unsafe. A circuit is sized for its load, and two significant loads together would exceed it. So naive sharing, just wiring both to one circuit, is not safe or allowed.
Yes, with a circuit sharing device
However, an EV charger can safely share a dryer’s 240-volt circuit using a circuit sharing device, as covered in our article on circuit sharing devices. This device ensures only one of the two, the dryer or the EV charger, draws power at a time, so the circuit never carries both loads together and is not overloaded. When the dryer is in use, the device pauses EV charging, and when the dryer is off, the charger can use the circuit. This makes sharing safe.
Why it works
Circuit sharing with a dryer works well because the two loads are rarely needed at the exact same time, and EV charging is flexible. The dryer runs for a relatively short period occasionally, while EV charging usually happens overnight and does not need the energy immediately. So pausing EV charging while the dryer runs has little practical impact, the car still charges when the dryer is off, typically completing overnight. This natural compatibility is why sharing a dryer circuit is a workable solution.
Why it is useful
Sharing a dryer circuit via a sharing device is useful when running a new dedicated EV circuit is difficult:
- The dryer already has a suitable 240-volt circuit that can be shared
- Panel space is limited, with no room for a new breaker
- It avoids a new circuit run or panel upgrade
- It is a cost-effective way to add EV charging in a constrained situation.
So where a dryer circuit is available and a dedicated circuit is hard to add, sharing can be a practical option.
Installed by an electrician
Sharing a circuit between an EV charger and a dryer must be done with a proper circuit sharing device installed by a licensed electrician, not an improvised connection. The electrician confirms the circuit is suitable, selects an appropriate sharing device, and installs it safely and to code so only one load draws at a time. Whether circuit sharing is the right approach, versus a new circuit, load management, or an upgrade, depends on your situation, which the electrician assesses.
An EV charger cannot simply be wired to the same circuit as a dryer and used freely, because both are significant loads that would overload the circuit if drawing at once, but a circuit sharing device can let them safely share the dryer’s 240-volt circuit by ensuring only one draws power at a time. This works because the loads are rarely needed simultaneously and EV charging is flexible. A licensed electrician installs a proper sharing device where appropriate.
Stella Electric installs circuit sharing and other EV charging solutions for homeowners across the Baltimore area and throughout Maryland, with flat-rate pricing and no overtime charges. If you want to use your dryer circuit for charging, we can advise. Financing is available on qualifying projects.
