6
EV Ultra
Fast Charger Site preparation
Example of calculation for charger with 150kW DC charge capacity, 22kW AC and 43kW AC charge capacity:
𝐼𝑛𝑜𝑚 = 12 × 19,29 + 32 + 63 + 1 = 327 𝐴
𝐼𝑚𝑎𝑥 = 12 × 21,43 + 32 + 63 + 2 = 354 𝐴
Note!
Charger controller will limit I
max
current to 336A.
The recommended minimal cable cross section accepted by charger terminals is 95mm
2
. The maximal cable
cross section accepted by terminals is 300mm
2
. Site planning needs to check if the cable diameter and
bending radius is suitable for cable glands and plinth dimensions.
Use of aluminium cable is prohibited. The charger is cyclic load resulting to cycling thermal expansion and
contraction of cables. This increase risk of hotspots. During annual maintenance, check the cable connection
in charger and also in distribution board.
Available AC connection
– current rating for EV QC with DC plugs, AC 22kW.
Available AC connection
– current rating for EV QC with DC plugs, AC 43kW.
Available AC connection
– current rating for EV QC with DC plugs, AC 43kW and AC 22 kW.
Note!
Cable cross section is based on IEC 60364-5-52:2011 standard (Cu conductor, multi-core
cable, 3 live cores, PVC insulation, in the earth
– D2 case). Site specific conditions must be taken
into account for proper dimensioning. For different types of cables and installation conditions please
refer to cable fact sheet or consult with Delta customer service.
4.1.2 Required cable length
Installation site should be prepared with AC cabling to supply L1, L2, L3, N, PE. Cable length should be at
least 1,5 meter long from base. Cable should be prepared inside the footprint of the EV quick Charger. Check
exact cable location in chapter 4.5.3
DC charge capacity [kW]
50
110kW platform
150kW platform
Maximal AC current [A]
120
227
291
Fuse rating in AC distribution [A]
125
250
315
Cable cross section (Cu) [mm2]
95
185
240
DC charge capacity [kW]
50
110kW platform
150kW platform
Maximal AC current [A]
151
258
322
Fuse rating in AC distribution [A]
160
315
355
Cable cross section (Cu) [mm2]
95
240
300
DC charge capacity [kW]
50
110kW platform
150kW platform
Maximal AC current [A]
183
290
354
Fuse rating in AC distribution [A]
200
315
355
Cable cross section (Cu) [mm2]
120
240
300
