Xantrex Technology PV225S-480-P - Manual (Page 59)

Wiring - General
152606 3–11
Overcurrent Protection
AC overcurrent protection for the Utility Interconnect (Grid-tie) must be provided
by the installer as part of the PV225S installation.
Conductor Termination
The PV225S has terminals and bus bars for making all wiring connections
required for the installation. All terminals used for making AC and DC
connections require the use of copper conductors with an insulation rating of
90 °C (or higher). For wire gauge, bolt size, and torque values for the AC
terminals, see Table 3-1. For wire gauge, bolt size, and torque values for the
DC terminals, see Table 3-2.
Transformer
Enclosure The AC terminals in the Transformer Enclosure (T6-X1, T6-X2, and T6-X3)
require the use of crimp-on type ring terminals or compression-type lugs. The
terminals can accommodate up to two conductors per phase.
See Figure 3-14 on page 3–15 for the location of these terminals.
Main Inverter
Enclosure The AC terminals in the Main Inverter Enclosure (TB5, TB6, and TB7) have six
openings per phase. These terminals do not require the use of ring terminals or
compression lugs.
See Figure 3-15 on page 3–16 for the location of these terminals.
AC Interface
Enclosure The AC line terminals in the AC Interface Enclosure (S1-2T1, S1-4T2, and
S1-6T3) are one bolt per phase. These terminals require the use of crimp-on type
ring-terminals or compression-type lugs.
See Figure 3-16 on page 3–16 for the location of these terminals.
The AC neutral terminal in the AC Interface Enclosure (TB11) has one bolt per
pole and requires the use of crimp-on type ring terminals or compression-type
lugs.
See Figure 3-18 on page 3–18 for the location of this terminal.
DC Interface
Enclosure The DC terminals in the DC Interface Enclosure (S2-6, K2-6T3, and TB4) can
accommodate up to four conductors per pole at S2-6 and K2-6T3, and up to two
conductors at TB4. These terminals do not require the use of ring-terminals or
compression lugs.
See Figure 3-19 on page 3–19 for the location of these terminals.
CAUTION: Equipment Damage
In accordance with the NEC, ANSI/NFPA 70 (Ninth Edition) a 400 A maximum
branch-circuit overcurrent protection must be provided.
Important: Keep these cables together as much as possible, and ensure that all cables
pass through the same knockout and conduit fittings, thus allowing any inductive currents
to cancel.