CPS SCA50KTL-DO/US-480 - DC Connection; Internal Connection Points Within the H4 Wirebox; Working Mode

36
1+
SPD
2+ 3+ PE
AC Output:Use 90 ¡ãC wire, either 3~2/0AWG copper or
2~2/0AWG al uminum, torque 1 10 in-lbs.
AC Ground:Use 90¡ ãC copper wire, 6~ 4AWG for internal
grounding bar or external grounding nut , torque 50 in-lbs.
L1 L2
L3
N
7
8
9
10
Figure 3-20(b) Internal Connection Points within the H4 wirebox
⑦ DC Input fuse holder
⑧ DC SPD (Surge Protective Device)
⑨ Internal ground terminal
⑩ AC output terminal block
3.3.3. DC Connection
3.3.3.1. Working mode
These inverters are factory configured with three MPPTs which
are electrically divided into separate PV input zones: PV Input-1,
PV Input-2, and PV Input-3. Each 5-string PV input zone
operates as a separate and independent MPP Tracker.
Independent mode can be very useful for sites with partial
shading of the array or with arrays consisting of different tilt or