Electrical Connections
16
Installation Manual for Generac PWRCell Inverter
DC Wiring
(000598)
WARNING
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.
(000644)
WARNING
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.
(000645)
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.
(000646)
Equipment damage. Obey polarity markings when
connecting REbus devices. Reverse-polarizing DC
circuits could result in equipment or property damage.
WARNING
(000647)
Equipment damage. Connect only one wire to each DC
wiring terminal. Doubling wires on a terminal could
result in equipment or property damage.
WARNING
NOTE:
Disable REbus before returning breakers to ON
position.
•
Connect all REbus devices to the REbus bi-
directional DC terminals.
•
Each terminal is protected by a 30 A two-pole
circuit breaker.
•
Breakers indicate state and may be used to
disconnect DC circuits.
•
Breakers disconnect both ungrounded DC
conductors simultaneously.
•
Torque all terminals as specified in
Table 5-6. DC Wiring Terminal Specifications
Wire Size
Terminal
Temp Range
Wire Min
Temp Rating
Torque
18-6 AWG
(.75-10 mm)
-40 to 266ºF
(-40 to 130ºC)
194ºF
90ºC
12 in-lb
(1.35 Nm)
AC Wiring
NOTE:
The installer is responsible for providing sufficient
overcurrent protection for the AC grid wiring terminals.
The conductors and overcurrent protection device shall
be sized in accordance with NEC Article 705.12 for the
utility power connection. All other conductors shall be
sized in accordance with NEC Table 310.15(B)(16) and
all other applicable NEC Articles.
•
See
. The Generac PWRcell inverter is
equipped with four AC grid connection terminals
and three protected loads terminals.
•
Use the top four terminals (A) for connection to the
utility grid.
NOTE:
Use L3 terminal (B) with 3-phase inverters only.
•
Use the bottom three terminals (C) for protected
loads output.
N1
L1
L2
N
Protcd.
L3
(3p)
L1
Protcd.
L2
Protcd.
C
009994
A
B
See
.
Figure 5-4. AC Wiring Terminals
•
Torque all terminals as specified in
Table 5-7. AC Wiring Terminal Specifications
Up to 248ºC (120ºC)
194ºF (90ºC)
13.3 in-lb to 15.9 in-lb
(1.5 Nm to 1.8 Nm)
Wire Size
14 to 6 AWG
(2.08 mm
2
to 16 mm
2
)
Terminal Temp Range
Wire Min Temp Rating
Torque
