Figure 2. power rating vs. temperature, Table 3. power supply ratings and specifications, Power rating vs. temperature – KEPCO HSF 300W Series (no suffix) Operator Manuals User Manual

Page 5: 2 for pow, Figure 2)

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HSF 300W 050113

3

FIGURE 2. POWER RATING VS. TEMPERATURE

TABLE 3. POWER SUPPLY RATINGS AND SPECIFICATIONS

CHARACTERISTIC

SPECIFICATION

CONDITION/NOTES

Input Voltage

Nominal: 100-120V a-c, 200-240V a-c
Range: 85-265V a-c, 110-370V d-c

0 to 100% load, -10 to 40°C

Input Source Frequency

Nominal: 50-60 Hz
Range: 47-440 Hz

0 to 100% load, -10 to 40°C

At 440 Hz leakage current exceeds

UL/VDE safety spec. limit.

Input Current: (Maximum Load At
25°C with Nominal Output Voltage)

4.4A rms max.

100 - 120V a-c

2.2A rms max.

200 - 240V a-c

Switching Frequency

140KHz typ.

Forward Converter

Input Protection

A limiting resistor in series with a resistor fuse (and thyristor circuit) reduces start-up surge.
The internal power supply is protected against shorts by an input fuse. Fuse value 10.0A at
250 Volts

Input Surge cold start, interval > 30

sec ( First surge only, not including

current flow into EMI filter)

15A typ., 20A max. first surge

100 - 120V ac

30A typ., 40 max. first surge

200- 240 V ac

Leakage Current:

0.24mA typ., 0.3mA max.

120V a-c, 60Hz per IEC 950 and UL1950

0.31mA typ., 0.38mA max.

240V a-c, 60Hz per IEC 950 and UL1950

Power Factor

0.99 typical

Rated output, rated input

Transient Recovery

excursion

characteristic

±4% maximum

50% to 100% load,

transient time >50

µ

sec

recovery time 1 ms maximum

Stabilization

Source Effect (min - max) ±0.1% Typical, ±0.2% Maximum

Maximum: ±1% (default,

85 to 132V a-c, 170 to 265V a-c

Load Effect ±0.3% Typical, ±2% Maximum (default)

±0.3% Typical, ±0.6% Maximum (see PAR. 3.8)

Individual Mode: 0%-100% load change

Current Sharing: 10%-100% load change

Temperature Effect ±0.5% Typical, ±1.0% Maximum

–10° to 40°C

Combined Effect ±0.9% Typical, ±1.8% Maximum

Source, Load and Temperature

Time Effect 0.2% Typical, 0.5% Maximum

1/2 to 8 hours at 25°C

Start-up Time

280 msec Typical, 350 msec Maximum

100V a-c

150 msec Typical, 210 msec Maximum

240V a-c

Output Hold-up Time

30 msec Typical, 20 msec Minimum.

100V a-c

40 msec Typical, 20 msec Minimum.

240V a-c

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