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Installation and Operation Guide SOLECTRIA XGI 1000
DOCR-070733-F (2/22/2021)
Page 34 of 78
Electrical Installation DC
The SOLECTRIA XGI 1000
TM
provides design flexibility for the installer and designer. The inverter supports a DC/AC ratio
of 1.5 and Wire Box options that offer either one or four MPPT zones. It is important to consider the installation type,
environmental conditions, PV modules, and string sizing before selecting a Wire Box option. The following section
provides important information regarding the DC input specifications, wiring requirements, and installation instructions.
MPPT Zones
The SOLECTRIA XGI 1000
TM
is equipped with four separate fused zones. Each zone can accommodate up to four PV strings.
All positive conductors must be landed in the fuse holders on the left side of the wiring box; all negative conductors must
be landed on the right side fuse holders. Both positive and negative conductors are fused. See Figure 3-14 for a detailed
layout of the wiring compartment.
The SOLECTRIA XGI 1000
TM
is available in configurations with all zones MPP tracking independently (Independent Mode)
or in parallel (Combined Mode). Independent Mode provides design flexibility when dealing with different array
orientations, shading, or string sizing. Combined Mode can be used when all strings connected to the inverter are of
identical lengths. In some circumstances Combined Mode may allow the designer to maximize the DC to AC ratio.
The SOLECTRIA XGI 1000
TM
Wire Box must be ordered from the factory pre-configured as either Independent Mode or
Combined Mode. The MPPT zone configuration of the Wire Box is not field configurable. SOLECTRIA XGI 1000
TM
Power
Heads are field configurable using the HMI during commissioning.
Figure 3-18 Wiring from Modules Directly to Inverter