
Installation and Operation Guide SOLECTRIA PVI 25TL-480-R
DOCR-071030-A (11/17/2020)
Page 29 of 101
②
Knock-outs for AC output, (2) 1-1/2 inch Trade Size
③
Knock-out for communication, (4) 3/4 inch Trade Size
④
FOMlink Dongle port
⑤
Vent
⑥
External ground connection point (M6)
10
7
8
9
11
12
Figure 3-14 Internal Connection Points within the Wire-Box
⑦
DC Input fuse holder/terminal (positive)
⑧
DC Input terminal (negative)
⑨
Communication board
⑩
Internal ground terminal
⑪
RSD transmitter
⑫
AC output terminal block
3.4
Electrical Installation DC
The SOLECTRIA PVI 25TL-408-R
provides design flexibility for the installer and designer. The inverter supports a DC/AC
ratio of 1.5 and the Wire Box provides two MPPT zones with three inputs each. The following section provides important
information regarding the DC input specifications, wiring requirements, and installation instructions.
MPPT Zones
3.4.1
The SOLECTRIA PVI 25TL inverters are factory configured with two MPPTs which are electrically divided into separate PV
input zones: PV Input-1 (PV_In1) and PV Input-2 (PV_In2). Each 3-string PV input zone operates as a separate and
independent Maximum Power Point Tracker (MPPT). Independent MPPTs can be very useful for sites with partial
shading of the array or with arrays consisting of different tilt or azimuth.