350W AC DC Open Frame Switching Power Supply with PFC function single output
Descriptions
LOF350-20Bxx series is one of Mornsun’s open frame AC-DC switching power supply and suitable for all kinds of BF type (be accessible to patients) medical systemequipment.It features universal AC input and at the same time accepts DC input voltage,cost-effective,built-in active PFC function,high efficiency and high reliability.These converters offer excellent EMC performance and meet IEC/EN/UL62368, GB4943,IEC/EN60335,IEC/EN61558,IEC/EN/ES60601 standards and they are widely used in areas of industrial,Plant lighting,LED,street light control, electricity,security,telecommunications,smart home,medical,etc.
Features
Specifications
| Selection Guide | |||||||
|
Certification |
Part No. |
Cooling method | Output Power* (W) |
Nominal Output Voltage and Current (Vo/Io) |
Output adj. Range (V) | Efficiency at 230VAC (%) Typ.* | Max. Capacitive Load (µF) |
|
UL/EN/IEC |
LOF350-20B12 |
Air cooling | 180 | 12V/15A |
11.4-12.6 |
92 |
6000 |
| 20.5CFM | 300 | 12V/25A | |||||
|
LOF350-20B15 |
Air cooling | 180 | 15V/12A |
14.25-15.75 |
92 |
5000 |
|
| 20.5CFM | 325 | 15V/21.67A | |||||
|
-- |
LOF350-20B18 |
Air cooling | 180 | 18V/10A |
17.1-19.9 |
92.5 |
4000 |
| 20.5CFM | 324 | 18V/18A | |||||
|
LOF350-20B19 |
Air cooling | 180.5 | 19V/9.5A |
17.1-19.9 |
92.5 |
4000 |
|
| 20.5CFM | 324.9 | 19V/17.1A | |||||
|
UL/EN/IEC |
LOF350-20B24 |
Air cooling | 199.9 | 24V/8.33A |
22.8-25.2 |
93 |
3200 |
| 20.5CFM | 350.4 | 24V/14.6A | |||||
|
LOF350-20B27 |
Air cooling | 199.8 | 27V/7.4A |
25.65-28.35 |
93 |
2600 |
|
| 20.5CFM | 351 | 27V/13A | |||||
|
LOF350-20B36 |
Air cooling | 200.16 | 36V/5.56A |
34.2-37.8 |
93 |
2000 |
|
| 20.5CFM | 350.28 | 36V/9.73A | |||||
|
LOF350-20B48 |
Air cooling | 200.1 | 48V/4.17A |
45.6-50.4 |
94 |
2000 |
|
| 20.5CFM | 350.4 | 48V/7.3A | |||||
|
EN |
LOF350-20B54 |
Air cooling | 199.8 | 54V/3.7A |
51.3-56.7 |
94 |
2000 |
| 20.5CFM | 351 | 54V/6.5A | |||||
|
Notes: 1.*Under any conditions, the total power of the product should not exceed the rated power. When the output voltage is increased, the total output power cannot exceed the rated output power, when the output voltage is decreased, the output current cannot exceed the rated output current; 2.*When measuring the full load efficiency, the fan should be connected to an external power supply. Fan loss is not included in the input power; 3.*LOF Products with shell is also available, named LOF350-20Bxx-C. |
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| Input Specifications | ||||||
| Item | Operating Conditions | Min. | Typ. | Max. | Unit | |
|
Input Voltage Range |
AC input | 90 | -- | 264 | VAC | |
| DC input | 127 | -- | 370 | VDC | ||
| Input Voltage Frequency | 47 | -- | 63 | Hz | ||
|
Input Current |
115VAC | -- | -- | 4 |
A |
|
| 230VAC | -- | -- | 2 | |||
|
Inrush Current |
115VAC |
Cold start |
-- | 50 | -- | |
| 230VAC | -- | 75 | -- | |||
|
Power Factor |
115VAC |
Full load |
0.98 | -- | -- |
-- |
| 230VAC | 0.95 | -- | -- | |||
| Leakage Current | 240VAC | ＜0.1mA; Single fault ＜0.5mA | ||||
| Hot Plug | Unavailable | |||||
| Output Specifications | |||||||
| Item | Operating Conditions | Min. | Typ. | Max. | Unit | ||
|
Output Voltage Accuracy* |
Full load range |
12V/15V/18V/19V | -- | ±3 | -- |
% |
|
| 24V/27V/36V/48V/54V | -- | ±2 | -- | ||||
| Line Regulation | Rated load | -- | ±0.5 | -- | |||
| Load Regulation | 0% - 100% load | -- | ±1 | -- | |||
|
Output Ripple & Noise* |
20MHz bandwidth (peak-to-peak value) |
12V/15V/18V/19V | -- | -- | 120 |
mV |
|
| 24V | -- | -- | 150 | ||||
| 27V/36V | -- | -- | 200 | ||||
| 48V/54V | -- | -- | 250 | ||||
| Temperature Coefficient | -- | ±0.03 | -- | %/℃ | |||
| Minimum Load | 0 | -- | -- | % | |||
|
Hold-up Time |
230VAC, full load |
Air cooling | 12 | 14 | -- |
ms |
|
| 20.5CFM | 6 | 8 | -- | ||||
| Stand-by Power Consumption | 230VAC | -- | -- | 1.0 | W | ||
| Short Circuit Protection | recover time <5s after the short circuit disappear | Constant current, continuous, self-recover | |||||
| Over-current Protection | ≥110%, self-recover | ||||||
|
Over-voltage Protection |
12V | ≤15.0V |
Output voltage turn off, re-power on for recover |
||||
| 15V | ≤18.5V | ||||||
| 18V | ≤ 23.7 V | ||||||
| 19V | ≤ 23.7 V | ||||||
| 24V | ≤30.0V | ||||||
| 27V | ≤33.5V | ||||||
| 36V | ≤45.0V | ||||||
| 48V | ≤59.5V | ||||||
| 54V | ≤63.0V | ||||||
| Over-temperature Protection* | Output voltage turn off, re-power on for recover after the temperature drops. | ||||||
|
Fan power |
12V/15V/24V/36V/48V/54V |
Offer output power of 12V/0.5A with output voltage accuracy ±15% |
|||||
| 18V/19V | Offer output power of 12V/0.5A with output voltage accuracy -15% - +25% | ||||||
| 27V | Offer output power of 12V/0.5A with output | ||||||
| Mechanical Specifications | |
| Case Material | Open frame |
| Dimensions | 127 × 76.2 × 25.4 mm |
| Weight | 295g (Typ.) |
| Cooling Method* | Air cooling (180W/200W) / 20.5CFM (300W/325W/350W) |
| Notes: *Please refer to the product characteristic curve for cooling method and power derating. | |
Our products are sold all over the world, you can rest assured.
