24V 400W power supply unit is commonly used for a water pump. These power supply units are designed to convert AC line voltage into a 24V DC power source suitable for powering a variety of pumps. The 400W rating provides sufficient power to work with most medium-sized pumps, while the 24V output ensures compatibility with almost any pump in the market.
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Model No. Parameter |
K18-UP400S12 |
K18-UP400S24 |
K18-UP400S28 |
K18-UP400S36 |
K18-UP400S48 |
K18-UP400S60 |
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Output
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Output voltage |
+12V |
+24V |
+28V |
+36V |
+48V |
+60V |
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Rated current |
33.4A |
16.7A |
14.3A |
11A |
8.3A |
6.7A |
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Current range |
0-33.4A |
0-16.7A |
0-14.3A |
0-11A |
0-8.3A |
0-6.7A |
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Rated power(cooling by nature) |
350W
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Rated power(with cooling fan) |
400W
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Ripple |
200mVp-p |
240mVp-p |
280mVp-p |
360mVp-p |
480mVp-p |
600mVp-p |
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Adjustable output voltage range |
±5% |
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Output accuracy |
±1% |
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Line regulation |
±0.5% |
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Load regulation |
±0.5% |
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Set up,rise,hold on time |
500ms,50ms,5ms |
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Input
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Input voltage range |
90-264V AC |
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Input current |
3A @ 220V AC |
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Frequency |
47-63 Hz |
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Efficiency |
90% |
92% |
93% |
93% |
93% |
93% |
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Power factor |
>0.99@110V;>0.95@220V |
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Inrush current |
Cold start 15A/115V，30A/230V |
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Leakage |
<3.5mA@240V AC |
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Protection
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Over load protection |
110~200%,Hiccup protection, automatic recovery |
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Output over-voltage protection |
15-18V |
28-33V |
32-36V |
42-46V |
55-60V |
70~80V |
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Over temp. protection |
The cover temp.>105℃，shut up,automatic recovery |
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Environment
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Working temp.,humidity |
-20~60℃,10~90% RH，No condensation |
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storage temp.,humidity |
-20~85℃，10~95% RH |
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Temperature drift |
±0.03%/℃(0~50℃) |
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Vibration |
10~500Hz, 2G 10min./1cycle, PERIOD FOR 60min. EACH AXES |
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Safety&EMC standards
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Safety standards |
GB4943,EN60950-1:2006 |
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Withstand voltage |
I/P-O/P:3KVAC； I/P-FG:1.5KVAC； O/P-FG:500VAC |
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Insulation resistance |
I/P-O/P, I/P-FG, O/P-FG:500VDC / 100M Ohms |
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EMC standards |
EN55015 CLASS B; EN61000-3-2 |
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Others |
Dimension |
127*82*39mm |
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Weight |
0.6Kg |
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Q:What is PFC for the PSU?
A4:PFC stands for Power Factor Correction. The purpose of PFC is to improve the ratio of apparent power and real power. The power factor is only 0.5~0.7 in non-PFC models. In PFC models of dc power supply, the power factor can reach above 0.9. The calculation formulas are as below:
Apparent Power=Input Voltage x Input Current (VA)
Real Power= Input Voltage x Input Current x Power Factor (W)
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