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Installation and Operation Guide SOLECTRIA
DC Connection Using an XGI 1500 Remote Combiner
(CR1500-xxP-yyS-400, or CR1500-xxP-yyF-400S)
Wire the DC Connections as shown in Figure 3-14 using the wire sizes shown in Table 3-6.
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Figure 3-14 DC Connections from a Solectria CR1500 Remote Combiner
Models
Wire Size Range
As shown in Figure 3-16, for the DC
connections, use 2-hole compression lugs
with 1.75" spacing, a hole for an M10 stud,
and sized for the wire gauge used. The width
of the lugs must be 2.0" (50.8 mm) or less.
Torque to 220 in-lbs (25 N-m) using an 18mm
socket and torque driver. Use a hex nut,
Bellville washer and flat washer (these
fasteners are not provided). The terminal
accepts single or parallel conductor sets.
The DC terminal accepts one or two (parallel) conductors. These may be one or two conductors from a
single PV combiner box, or one conductor from each of two separate PV combiners. Figure 3-16 shows the
fasteners and connections.
DOCR-071081-B
®
XGI 1500 DCG Series Inverters
-
Table 3-6 DC Input Wire Size
XGI 1500-250/250-600-DCG, XGI 1500-225-600-DCG
XGI 1500-200/200-480-DCG, XGI 1500-175-480-DCG
Cu or Al:
Min: per NEC
Cu or Al:
Max: 750 kcmil, 1 or 2 conductors with lugs
26 of 74
Figure 3-16 DC Conductor Termination
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