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Installation
2–16
975-0400-01-01
Aux Output Connections
The auxiliary output connectors can accept #22 to #14 AWG (0.5 to 1.5 mm
2
)
copper solid or stranded wire. The auxiliary output is short-circuit protected and is
disabled when a ground fault occurs.
To use the XW SCC to control loads and protect your batteries, you must connect
the XW SCC auxiliary output to a relay that controls a battery disconnect to
disconnect the load from the batteries. As shown in Figure 2-11, the auxiliary
output can also power a fan to vent the battery compartment. The XW SCC
auxiliary output (producing 5 to 13 V and up to 200 mA) must be configured to
activate when the batteries reach a pre-set voltage level. See “Configuring the
Auxiliary Output” on page 3–12.
WARNING: Shock hazard
If the PV-GFP internal protection has activated, shock-hazardous voltage may appear at
the AUX connector and at the battery terminals. To avoid a shock hazard, ensure that all
connections made to the AUX terminals have no uninsulated wire segments and that all
wiring has an insulation rating of at least 300 V.
CAUTION
The auxiliary output is intended only to energize a low-current circuit such as a relay coil.
Connection to a high-amperage device will open the fuse in the common line and possibly
damage the unit.
Figure 2-11
Auxiliary Output Vent Fan Application
LEGEND
PV
+
PV
–
BA T
+
BAT
–
-
+
-
+
-
+
-
+
Aux Positive
Aux Negative
Summary of Contents for XW-MPPT60-150
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