Commercial Level 2 charger bank single line diagram
Six 32A chargers from a dedicated 208V EV panel. Use this for a workplace, retail or multi-family parking area with a row of Level 2 chargers on a dedicated three-phase EV panel.
A free template with typical ratings, conductor callouts and general notes. Open it, change what differs on your job, fill in the title block and export a PDF.
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What the reviewer checks on this drawing
The reviewer checks each 32A charger on a 40A circuit, the chargers balanced across the three phases, the panel feeder against the total continuous load, and what happens when more chargers are added.
What the drawing shows
Every device on the sheet, in the order power reaches it.
| Symbol | Label | Rating or detail | Conductors feeding it |
|---|---|---|---|
| Utility source | Utility service | 120/208V 3φ 4W | |
| Current transformer | CT cabinet | Utility metering | |
| Circuit breaker | 400A 3P | Main | |
| Panel | Main distribution panel | 400A · 120/208V 3φ 4W | |
| Circuit breaker | Existing | Building loads | |
| Load | Existing loads | ||
| Circuit breaker | 200A 3P | EV feeder | |
| Panel | EV panel | 225A MLO · 120/208V 3φ 4W | 4 #3/0 Cu + #6 G |
| Circuit breaker | 40A 2P | EV-1 | |
| EV charger | EVSE 1 | 32A · 6.6 kW | |
| Circuit breaker | 40A 2P | EV-2 | |
| EV charger | EVSE 2 | 32A · 6.6 kW | |
| Circuit breaker | 40A 2P | EV-3 | |
| EV charger | EVSE 3 | 32A · 6.6 kW | |
| Circuit breaker | 40A 2P | EV-4 | |
| EV charger | EVSE 4 | 32A · 6.6 kW | |
| Circuit breaker | 40A 2P | EV-5 | |
| EV charger | EVSE 5 | 32A · 6.6 kW | |
| Circuit breaker | 40A 2P | EV-6 | |
| EV charger | EVSE 6 | 32A · 6.6 kW |
Notes on the sheet
- Chargers balanced across phases A-B, B-C and C-A.
- Each 32A EVSE is a continuous load on a 40A circuit.
- Add a networked load management system if future chargers would exceed the 200A feeder.
Diagram is schematic and not to scale. Field-verify existing equipment ratings. Ratings and conductor sizes shown are typical. Confirm against the adopted code, the equipment listing and a load calculation before installation. Code references are to the 2023 NEC and the 2024 Canadian Electrical Code: see references and editions.
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