6
2) Connect additional wire to the cord if required to reach the
power source. Use wire with a conductor area of at least 12
AWG (3.3mm
2
), solder the connections to the PROwatt 250
cord and insulate them with good quality electrical tape or
shrink wrap tubing. Total length of cable to the power
source should be limited to a maximum of 2 meters (6 feet).
3) Make a good connection to the power source terminals. For
temporary use, heavy duty battery clips such as Radio Shack
part #270-341 are suitable. For permanent installation, use
heavy-duty ring tongue or locking fork/spade terminals.
4) Power to the PROwatt 250 can be controlled by a switch in-
serted in the circuit between the power source and the PRO-
watt 250. Use a switch rated at a minimum of 12V/25A con-
tinuous current, such as Radio Shack #275-704 for the 12V
PROwatt 250. Use a switch rated at a minimum of 24V/15A
continuous current, such as Radio Shack #275-701 for the
24V PROwatt 250. Alternatively, you can use a lighting re-
lay in the power circuit and control the relay with a low cur-
rent switch.
CAUTION: If the power source is not overload protected,
use a fuse (30A for PROwatt 250/12V or 15A for the PRO-
watt 250/24V) to protect the wiring between the PROwatt
and the power source.
CAUTION: REVERSE POLARITY CONNECTION WILL
DAMAGE THE INVERTER
