Loading ...
Loading ...
Loading ...
9
3.2 Electrical Design
3.2.1 Upstream Wiring
Charging stations are considered continuous load devices (EVs draw maximum load for
long durations); therefore, electrical branch circuits must be sized at 125% of the load for
North American installations, in accordance with National Electric Code (NEC)
requirements. (For other regions, refer to local code.) This means that for a maximum 50
A load at 208/240 V output to an electric vehicle, 65 or 70 A breakers are required.
Wiring must be sized in accordance with NEC code for continuous load devices. Typically,
16 mm
2
or 10 mm
2
(6 AWG or 8 AWG) insulated electrical wire is used, depending upon
the rating of the circuit and the distance between the electrical panel and the charging
station. The terminal block accepts a maximum of 16 mm
2
(6 AWG).
3.2.2 Upstream Wiring
240 VAC Panel
1. Main Breaker
2. PE Bus
3. L1
4. L2
5. Local Service or Sub Panel
6. L1
7. L2
8. PE
9. Input Terminal Block
10. Output Terminal Block
Loading ...
Loading ...
Loading ...