1.3. Series 7 Plus Electrical Requirements /
Wiring Diagram
Wiring Color Code
The illustrations and diagrams in this document reflect Level-2 wiring color code. Strictly adhere to the wire
color codes to ensure proper installation.
Use 10 AWG wire minimum (ensure compliance with electrical codes).
Wiring Diagram
Connect the Series 7+ Charging Stations to any one of the power sources (Figure-1):
1. 240 VAC three phase, Delta system, Center tap grounded
2. 208 VAC three phase, Wye system, Bonded neutral
3. 240 VAC single phase, Bonded neutral
In a Wye system connect the Series 7 Plus Charging Stations to any of the two lines. Do not use the system
if it has a floating ground.
In a delta system, connect the Series 7 Plus Charging Station only to a center-tapped grounded transformer
only as shown above. Connect the station to the side where ground is bonded (in figure 2.C, Line A and
Line C). This allows voltages to remain constant regardless of other loads that may be using the lines.
Please do not connect to other type of power sources shown below.
Installation Manuals Series 7 / 7 Plus EV Charging Station - 1
Copyright ©2021 SemaConnect, Inc. All rights reserved. Page 6 of 26
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