Condo and apartment EV charger single line diagram
Start with this template when installing an EV charger in a condo or apartment from the meter with a DCC-9 load balancer. Be sure to add labels and details as required by your AHJ for an EVSE installation before submittal.
By submitting this form you consent to receive marketing emails from Kopperfield. Unsubscribe any time.
What's in this condo and apartment EV charger single line diagram
The template shows the EV circuit tapped at the unit's meter instead of the unit panel:
- Meter bank with the unit's 100A meter
- DCC-9 load balancer on the load side of the unit's meter, with a 60A EV breaker
- Disconnect and EVSE at the unit's parking spot in the garage
- Existing 100A in-unit panel feeding the unit's other loads
- Grounding at the meter bank
- Title block with contractor, project, and revision info
Every label is editable to match the job.
How a DCC-9 load balancer makes room for an EV charger
When a condo or apartment unit panel doesn't have the capacity for an EV circuit, a DCC-9 load balancer, also called an EV energy management system (EVEMS), lets you add one. In this template it sits on the load side of the unit's meter, ahead of the unit panel:
- It monitors the unit's total load on L1 and L2
- Above 80% of the main breaker rating, it pauses the EV charger
On the 100A panel in this template, the cutoff is 80A. Run the unit load calc with our load calculations tool before you finalize the diagram.
How to use our single line diagram drawing tool
Use free templateEnter your email for free template access
Pick this template and enter your email. You'll create a free account, and your shop info gets added to the PDF.
Edit your diagram
Update symbols, breaker and meter sizes, colors, and comments to match the job.
Get your free, shareable PDF
Finish the title block and we'll generate a free PDF you can attach to your permit application.
Free templates that save you time
Pre-built templates
Choose a template from common scenarios like service and panel upgrades and EV charger, solar, generator, and battery installs
Easy drawing tools
Create, edit, and share diagrams and drawings faster with standard symbols and drawing components
Custom shop branding
Personalize diagrams and documents with project details and shop branding and customize to meet the needs of your AHJ
Downloadable PDF
Generate a free PDF of your diagram to send to customers or use for permit applications
More EV charger single line diagram templates
Condo and apartment EV charger single line diagram FAQ
More questions? Email team@kopperfield.com and we'll get back to you.
Can I install an EV charger in a condo or apartment if my panel is full?
Often, yes. A load balancer like the DCC-9 pauses the charger when the unit's load gets above 80% of the main breaker rating, which can avoid a service or panel upgrade. Check your AHJ and utility requirements first.
What is a DCC-9?
The DCC-9 is a load balancer for condo and apartment EV chargers. It comes in 30A, 40A, 50A, and 60A models and works with main breakers up to 125A.
When should I use this template instead of a residential EV charger template?
Use this one for a unit in a building with a meter bank, with the charger in a shared garage or parking area. For a single-family home, use a residential EV charger template.
Does the NEC count the full EV charger load if you use a load balancer?
Not always. The 2023 NEC 625.42(A) sets the EVSE load on a service or feeder at the maximum allowed by an energy management system that meets 750.30. Confirm which NEC edition your AHJ uses and whether they accept the DCC-9 as the energy management system in your load calc.
What is an electrical single line diagram?
A single line diagram (or one line diagram) is a simplified, easy-to-read graphical representation of an electrical power distribution system. It uses single lines and standard symbols to illustrate the key components such as transformers, circuit breakers, and power sources. A single line diagram provides a clear overview of how electrical power flows within a system and is essential for power system design, maintenance, and troubleshooting.
How do I use the single line diagram tool?
To start using our single line diagram tool, pick the template you'd like to edit from the gallery. Enter your email to begin editing. Select shapes and symbols from the left sidebar and drag these into the center of the page to edit the diagram. Select shapes to edit their style, text, or arrangement from the right sidebar. Save, preview, and send your completed diagram to email from the menu on the top right of the screen. If you need additional assistance, check out these resources for FE Electrical Exam Prep, which contain guidance on electrical symbol selection.
Who is this tool made for?
This tool is made for professionals involved in the design, construction, and permitting of electrical upgrades. This includes electrical contractors, engineers, power system designers, maintenance technicians, and designers. Our tool makes it easy for anyone to create single line diagrams with simple drawing tools and features.
