KEPCO RKW 300W Series Operator Manual - Manual (Page 4)

2
RKW 300W 060110
TABLE 2. POWER SUPPLY RATINGS AND SPECIFICATIONS
SPECIFICATION DESCRIPTION
Input Voltage 85-265V a-c (0 to 100% load, -10 to 65°C)
110-370V d-c Polarity insensitive (0 to 100% load, -10 to 65°C) Safety
agency approval applies only to a-c input operation.
Input Source Frequency 50 to 60 Hz 47-440 Hz. (At 440 Hz the leakage current exceeds the
UL leakage safety specification limit).
Input Current: (Maximum Load At
25°C with Nominal Output Voltage)
4.4A rms max. (3.6A rms max for the 3.3V model)
100 - 120V a-c
2.2A rms max. (1.8A rms max for the 3.3V model)
200 - 240V a-c
Input Protection A limiting resistor in series with a resistor fuse (in parallel with a thyristor circuit) reduces start-
up surge. Units are protected against shorts by an input fuse. Fuse value 10.0A At 250 Volts
Input Surge cold start,
interval > 30 sec (1)
15A typ., 20A max. first surge 100 - 120V ac
30A typ., 40 max. first surge 200- 240 V ac
Leakage Current: 024mA typ., 0.3mA max. at 120V a-c, 60Hz (per IEC 950 and UL1950)
0.31mA typ., 0.38mA max. at 240V a-c, 60Hz (per IEC 950 and UL1950)
Power Factor 0.99 typical rated output, rated input
Stabilization Typical Maximum
Source Effect (min - max) (85 to
132 V a-c, 170 to 265V a-c) 0.1%
(5 mV for 3.3V Model)
0.2%
(10 mV for 3.3V Model)
Load Effect, measured at sensing
terminals (0%-100% load change) 0.2%
(10mV for 3.3V Model)
0.4%
20mV for 3.3V Model)
Temperature Effect (–10° to 65°C) 0.5% 1.0%
Combined Effect (envelope,
Source, Load and Temperature) ±0.9% ±1.8%
Drift (from 1/2 to 8 hours at 25°C) 0.2% 0.5%
Remote Error Sensing: Compensation up to 0.4 Volts per load wire (0.15 Volts for RKW 3.3-70K, 0.25 Volts for RKW
5-60K) (see Figure 8). Transient recovery specs may not be satisfied with this function used.
Transient Recovery
characteristic excursion ±4% maximum 50% to 100% load,
transient time >50
µ
sec
recovery time 1 ms maximum
Start-up Time 350 msec maximum, 280 msec
typical.
100V a-c
210 msec maximum, 150 msec
typical. 240V a-c
Output Hold-up Time 30 msec typical, 20 msec mini-
mum.
100V a-c
40 msec typical, 20 msec mini-
mum. 240V a-c
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 a-c input power, wait about 40 seconds, and then
to reconnect the a-c input power or to open and then reclose the RC terminals.
(1) First surge only, not including current flow into EMI filter