Dc Wiring; Stop Terminal Wiring (Xvt Models Only); For Pv Only Installations Without A Pwrcell Battery; For Installations With A Pwrcell Battery - Generac Power Systems PWRcell XVT076A03 Installation And Owner's Manual

Electrical Connections

DC Wiring

DANGER
Electrocution. Never touch terminals when
inverter and PWRcell DC disconnects are ON.
Doing so will result in death or serious injury.
WARNING
Equipment damage. Obey polarity markings when
connecting REbus devices. Reverse-polarizing DC
circuits could result in equipment or property damage.
WARNING
Equipment damage. Do not connect raw, unregulated
battery output to inverter. Connect only REbus-compatible
batteries. Connecting batteries that are not REbus-
compatible could result in equipment or property damage.
CAUTION
Equipment damage. Do not connect PV string output
directly to inverter. PV must be connected via Generac
PWRcell PV Link. Connecting PV output directly to inverter
could result in equipment or property damage.
CAUTION
Equipment damage. Connect only one wire to each
DC wiring terminal. Doubling wires on a terminal
could result in equipment or property damage.
CAUTION
Equipment damage. Connect only to REbus-compatible
devices to the DC bus. Never connect to any other DC
power source. Connecting to other DC power sources
could result in equipment damage.
NOTE: The inverter does not itself provide ground fault
detection and interruption for PV circuits. PV GFDI is
provided by Generac PV Links in a PWRcell system.
•
Connect all REbus devices to the REbus bi-
directional DC terminals.
•
Each terminal is protected by a 30 A two-pole
circuit disconnect.
•
PWRcell DC disconnects indicate state and may
be used to disconnect DC circuits.
•
PWRcell DC disconnects
ungrounded DC conductors simultaneously.
•
Torque all terminals as specified in
NOTE: Disable inverter before turning PWRcell DC
disconnects to ON position.
18
(.75-10 mm)
(000686a)
STOP Terminal Wiring (XVT Models
Only)
In the event the PWRcell Inverter will be installed
indoors, or outdoors in a location far from the utility
service entrance, an external switch may be installed and
(000646)
wired to the inverter's STOP terminals to be the
compliant PV Rapid Shutdown initiator. See
Location and Compliance PVRSS Initiation
additional information.
NOTE: If installation includes a PWRcell Battery, the
battery must be equipped with external STOP terminals.
Battery STOP terminals must be wired in series or
(000645)
parallel to the inverter STOP terminals. See below and
reference the PWRcell Battery Installation & Owner's
Manual for more details.
For PV only installations without a PWRcell
Battery:
(000644a)
1. Verify the PWRcell system is powered down.
2. Remove the jumper from the inverter STOP
3. See
(000647a)
(000598a)
Figure 5-4. PV Only Remote Shutdown Switch Wiring

For Installations with a PWRcell Battery:

1. Verify the PWRcell system is powered down.
2. Remove the jumper from the inverter STOP
3. Remove the jumper for the battery STOP
disconnect both
4. See
Table 5-7.
Installation and Owner's Manual for Generac PWRCell Inverter
Table 5-7. DC Wiring Terminal Specifications
Terminal
Wire Size
Temp Range
18-6 AWG -40 to 266ºF
(-40 to 130ºC)
terminals.
Figure 5-4. Use 30 – 14 AWG two-conductor
cable with insulation rated for 600 V to connect a
switch that is lockable, UL listed, and rated for at
least 12 VDC, 1 A (consider a standard single-pole
light switch in a weather proof box with a lockable
lever).
Inverter
-
+
STOP
terminals.
terminals.
Figure 5-5 and Figure
two-conductor cable with insulation rated for 600 V
to connect a switch that is lockable, UL listed, and
rated for at least 12 VDC, 1 A (consider a standard
single-pole light switch in a weather proof box with
Wire Min
Torque
Temp Rating
194ºF 12 in-lb
90ºC (1.35 Nm)
Section 3:
for
Remote
Shutdown
Switch
013333
5-6. Use 30 – 14 AWG