Grounding
975-0400-01-01
2–7
Mounting the Charge Controller
The XW SCC is vertically mounted using three #10 × ½-inch or #12 × ½-inch
(12.5 mm) pan-head screws.
To mount the XW SCC:
1. Remove the wiring compartment cover.
2. Mark the location of the keyhole slot on the wall.
3. Secure the top mounting screw in the location marked. Leave the screw head
backed out approximately ¼ inch (6 mm).
4. Place the controller onto the screw and pull it down into the keyhole slot.
5. Insert two screws in the two mounting holes provided to secure the unit to the
wall.
6. Provide strain-relief clamps or conduit to prevent damage to the circuit board
and terminal block from pulling on the wires.
Grounding
The Charge Controller can be configured to be compatible with either negative-
grounded or ungrounded PV systems. For information about routing the ground
connection, see Figure 2-9 on page 2–14.
The maximum size of the ground conductor is #6 AWG (16 mm
2
). This wire
gauge is determined by electrical code requirements regarding conduit knockout
sizes, wire bending radius, and space available within the XW SCC wiring
compartment. For ground conductor requirements for your specific installation,
consult your local electrical code.
Figure 2-5
Mounting the XW Solar Charge Controller
Secure with two
more screws.
Place keyhole slot
over the mounting
screw.
¼"
(6 mm)
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