Eaton PV240 User Manual page 53

C) Use a multi-meter to measure the AC voltage from the combiner box for
AC utility. It is important to confirm the AC voltage that being used is
matching with the correct configuration of utility configuration dip switch
used.
D) Refer to the information from the table 310.16 in the National Electrical
Code (NEC) in order to select the proper size of AC cables for the
Position 1 pole / Position 2 pole / Position 3 pole.
The following table is shown the information of cables size and tightening
torque that should be used in the position (1) pole / position (2) pole /
position (3) pole in the AC terminal when a 208V grid system applied
with the PV inverter:
Terminal block
Admissible
Terminal block
conductor size
labeled with (1),
(2), (3)
Torque
Admissible
Terminal block
conductor size
labeled with (G)
Torque
IMPORTANT
The selection for the AC cable size and required torques for the
Position 1 / Position 2 / Position 3 were referring with the table
310.16 from the National Electrical Code (NEC).
E) E) Connect the AC cables with PV inverter by inserting them through the
conduits into wiring box as figure 7.2.2.2 shown:
Figure 7.2.2.2: Insert the AC cables through conduit
Eaton Corporation
Model PV240
(PV238)
10 AWG
15.6 lbf-in (18 Kgf-cm)
15.6 lbf-in (18 Kgf-cm)
Page 53
PV250 PV260
8 AWG
o o
90 C / 194 F, Copper
33.1 lbf-in (38.1 Kgf-cm)
10AWG
33.1 lbf-in (38.1 Kgf-cm)
PV270
6 AWG
Ver 1.1