KEPCO RCW 350W Series - Manual (Page 4)

2
RCW350W 120607
TABLE 2. POWER SUPPLY RATINGS AND SPECIFICATIONS
SPECIFICATION DESCRIPTION
Input Voltage Nominal: 100-120Vac or 200-
240Vac Range: 85-264 Vac
Range 125-370 Vdc Polarity insensitive. Safety ratings apply for a-c
input operation only.
Input Source Frequency Nominal 50/60 Hz, Range 47-440 Hz. (At 440 Hz the leakage current exceeds the
VDE safety leakage specification limit).
Brownout Voltage 80 V ac min
Input Current: (Maximum Load At 50°C with
Nominal Output Voltage)
120V ac
5.6A RMS max., and 4.0A RMS max for the
3.3V output model
240V ac
2.8A RMS max., and 2.0A RMS max for the
3.3V output model
Input Protection Units Are Protected Against Shorts By An Input Fuse. Fuse Value 10.0A At 250
Volts
Input Surge at 25° C from cold start; resistor
and thyristor soft start circuit reduces start-up
surge. (see Figure1)
120V ac 20.0A max. first surge
240V ac
40.0A max. first surge
Stabilization Typical Maximum
Source Effect (min - max) (85 to
132 V ac, 170 to 264V ac)
0.05% (1) 0.1% (1)
Load Effect, measured at sens-
ing terminals (0%-100% load
change)
0.2% (2) 0.3% (2)
Temperature Effect (–10° to
71°C)
0.5% 1.0%
Combined Effect (envelope,
Source, Load and Temperature)
± 0.7% ± 1.5%
Drift (8 hours at 25°C) 0.2% 0.5%
Output Holding Time: Output is maintained for 30 milliseconds typical upon input interruption (20 milli-
seconds minimum) with nominal 120 volts AC input voltage and output load at
50°C current rating.
Start-up Time 900 msec maximum, 500 typical.
Overvoltage Protection When the Power Supply goes into an overvoltage condition, the output is cut OFF.
To restart (reset) the unit, it is necessary to remove the AC input power, wait 40
seconds, and then to reconnect the AC input power.
Operating Temperature: -10 to 71°C (see Figure 2)
Storage Temperature: -30°C to +75°C
Humidity: 10% to 95% relative humidity, noncondensing, Wet Bulb temperature<35°C
Isolation
(at 25°C ambient, 65% relative humidity) Between input and case, 2500Vac for 1 minute
Between input and output terminal, 2500Vac for 1 minute. Cutout current is
20mA
Insulation Resistance: (at 25°C, 65% relative
humidity) Between output and case, input and case, and input and output, 100 Megohms
minimum (500Vdc)
Leakage Current: 0.50 mA max at 120 Vac (U.L. Method 50 to 60 Hz)
0.75 mA max at 240Vdc (VDE Method 50 to 60 Hz, two terminal connection)
Vibration:
(non-operating 1 hour on each of three axes,
Power Supply is fixed on its bottom side)
5-10 Hz., 10mm amplitude, 10-200 Hz., 64.3ft./s 2 ( 19.6M/s 2 )
1) 2 mV typ,4mV maximum for the 3.3 volt Model
2) 10mV typ,15mV maximum for the 3.3 volt Model