Figure 2. power rating vs. temperature, Power rating vs. temperature, Hsf 300w (a, am) output ratings and specifications – KEPCO HSF 300W Series (suffix A and AM) Operator Manuals User Manual
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HSF(A) 300W 101013
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FIGURE 2. POWER RATING VS. TEMPERATURE
TABLE 2. HSF 300W (A, AM) OUTPUT RATINGS AND SPECIFICATIONS
HSF (A, AM) MODEL
5-60A, AM
12-27A, AM
15-22A, AM
24-14A, AM
28-12A, AM
48-7A, AM
Output Volts d-c (nominal)
5
12
15
24
28
48
Output
Adjustment
Range
(1)
(Volts d-c)
(2)
SW1 pos 7 OFF
(default)
2 to 5.5
4.8 to 13.8
6 to 17.4
9.6 to 28.2
9.6 to 29.0
19.2 to 52.2
SW1 pos 7 ON
0 to 5.5
0 to 13.8
0 to 17.4
0 to 28.2
0 to 29.0
0 to 52.2
Output Current (nominal) (Amps)
60
27
22
14
12
7
Maximum Output Power (Watts)
(3)
300
300
300
300
300
300
Current Limit Setting (Amps)
(4)(5)
63
28.4
23.1
16.7
16.7
7.4
Overvoltage Protection (OVP)
(Volts d-c)
(6)
5.75 - 6.75
14.5 - 16.9
18.3 - 21.3
29.5 - 34.3
29.5 - 34.3
54.7 - 63.9
Efficiency
(% typ.)
AC Input 100V
71
76
77
80
80
81
AC Input 200V
73
79
80
83
83
84
Ripple &
Noise
(7)
(mV, p-p)
ripple 80
120
120
150
150
200
ripple noise
120
120
150
150
150
200
(1)
To adjust output voltage down to approximately 0V requires that DIP SW1, position 7 be set to ON. Refer to Table 5 for mini-
mum conditions required to maintain proper operation of alarm relay, meter (AM Models only) and VDC ON/ALARM indicator.
(2)
Using trimpot to attain voltages outside the specified adjustment range may trigger overvoltage (PAR 3.6.1) faults. Recovery
is by removing, and after approximately 40 seconds, reapplying AC input power or by reset (open and close) at ±RC termi-
nals (no delay).
(3)
See Figure 2 for power derating.
(4)
Square type. Output voltage returns automatically when cause is removed. (see PAR. 3.6.2).
(5)
CAUTION: The unit may be damaged if operated under overcurrent or shorted conditions for more than 30 seconds.
(6)
When overvoltage is detected, output is shut OFF. Recovery is by removing, and after approximately 40 seconds, reapplying
AC input power or by reset (open and close) at ±RC terminals (no delay).
(7)
Ripple and noise levels above are satisfied when conditions are 0 to 100% load, 0 to 50°C (load is derated from 50 to 70°C,
see Figure 2), and bandwidth
≤ 100MHz.