7
If the inverter is connected to the battery with the incorrect po-
larity, an internal fusible link will open and the inverter will not
function. The unit must be returned to Statpower for repair.
Repair costs for damage caused by reverse polarity are not cov-
ered by your warranty.
CAUTION: DO NOT USE WITH POSITIVE GROUND
ELECTRICAL SYSTEMS
The PROwatt 250 is designed for use with negative ground ve-
hicle electrical systems. The case of the inverter is connected to
ground conductor of the AC output cord and to the negative
side of the DC input. The PROwatt 250 should not be used
with positive ground vehicle electrical systems.
12 AWG wire
12 AWG wire
Power Source
-
+
Red stripe
indicates
positive conductor
Switch
12V/25A
24V/15A
Fuse
PROwatt 250
Figure 3. PROwatt 250 - Direct Connection to Power Source
WARNING: RISK OF EXPLOSIVE GASES
Sparks may occur when connecting the inverter to the battery.
These sparks can ignite accumulated battery gases and cause an
