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2. Electrical Requirements
Wiring Diagram
Connect the charger to a single phase 120/240 volt, bonded neutral power source. All wire must be sized in
accordance with the National Electric Code.
Electric vehicle charging stations must be equipped
with an internal Ground Monitor/Interrupter circuit
(GMI circuit). For the GMI circuit to function, a
reference to ground must be made through a main
bonding jumper or system bonding jumper (located
where the neutral connection is established and
bonded to ground). Without the neutral to ground
connection, GMI protection is not possible, and the
charger will be inoperable.
If you have an electrical system without a neutral you
must upgrade your electrical service from the utility
or provide a separately derived system to effectively
power and protect the electric vehicle charger.
Wiring To System
Current Limit 2-Pole Breaker Size NEMA 14-50 Plug Hardwired
16 AMPS (default setting) 20 AMP YES YES
24 AMPS 30 AMP YES YES
32 AMPS 40 AMP YES YES
40 AMPS 50 AMP YES YES
48 AMPS 60 AMP NO YES
50 AMPS 70 AMP NO YES
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