A built in LiFePO
4
battery will power the device for up to a half an hour in the absence
of power. This battery has a design life expectancy of more than 2,000
charge/discharge cycles.
The Power Supply port, as shown in Figure 7, contains 3 terminals on a removable/
lockable plug. Each terminal can accommodate conductors with sizes up to 2.5 mm
2
.
Figure 7: Vecto III power supply connection
Table 1: Power supply connection
The supply voltage input range is from 90 V
RMS
to 300 V
RMS
AC or DC (42-69 Hz for AC
sources).
The supply current is power factor corrected and the maximum power consumption
of the Vecto III is actively limited to 12.5 VA. The Vecto III can be powered directly from
110 V 50/60 Hz VT circuits due to this low burden.
The power supply is protected from brief periods of overvoltage conditions by built-in
surge protection.
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