4
145 Volts peak
115 Volts RMS
8.3 milliseconds
Figure 2. PROwatt 250 Modified Sine Wave
3. Installation
3.1 Power source
For optimum performance, the power source must provide be-
tween 11 and 14.5 volts (22-30 volts for PROwatt 250/24V)
and must be able to supply sufficient current to operate the load.
The power source may be a battery or a well-regulated DC
power supply. As a rough guideline, divide the power con-
sumption of the load (in watts) by 10 (by 20 for PROwatt
250/24V) to obtain the current (in amperes) the power source
must deliver.
Example: Load is rated at 120 watts. Power source must be
able to deliver:
120 ÷ 10 = 12 amps (or 6 amps for PROwatt 250/24V)
