Three Phase - Nuvve EVSE-B-P Series Installation And Setup

Three Phase

• The PowerPort may be used for 200V, 208V, 400V or 480V three-phase power. In the
US, check with the customer to ensure that the choice of 208V or 480V three phase is
consistent with the expected voltages of the vehicles at the location.
• All three-phase EV standards require neutral, therefore neutral must be connected
when installing the three-phase PowerPort. Supply must be 4-wire Wye.
• Connect a dedicated, overcurrent-protected service to the four terminals toward the
left side, as shown below, marked "L1", "L2", "L3", and "N" in the figure. The left terminals
are for the line supply (the right should already be connected to the EV cable. Connect
the supply ground to the smaller terminal marked "G" and colored green or green and
yellow.
• For L1/L2/L3 use wires of 2-50 mm2 (14 to 1/0 AWG) appropriate to ampere rating of
branch circuit, strip to 20 mm (3/4 in). Strip G to 13 mm (1/2 in).
• Critical setting: Use a torqueing screwdriver and torque to 5.0 N·m (44 lbf·in).
• Important: For 480 V, the PowerPort power supply must be powered from L1 to N. If
it is powered L1 to L2, the 480V line supply will burn out the power supply. Installing
electrician must check this before powering up a 3-phase EVSE.
Page 11 | Doc #: NU-000032-A, PowerPort Installation & Setup