300W 2"x4" AC-DC Open Frame Power Supply
MPI-S300 Series
Delivers 300W with fan cooling and 180W under convection cooling for diverse thermal management needs
Features a 2"x4" (50.8 x 101.6 mm) compact size and low profile design, ideal for space-constrained ITE systems
Achieves high efficiency (up to 92%) with an industry-leading ultra-low no-load power consumption (<0.1W), ensuring maximum energy savings
Comprehensive compliance: Certified to IEC/UL 62368-1 ITE safety standards. Meets EMI CISPR/FCC Class B and advanced PFC requirements (EN 61000-3-2 Class D / EN 61000-3-3)
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MODEL SELECTION TABLE |
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Model Number |
Wattage (Convection cooled/ Force cooled) |
Output Voltage |
Output Current (Convection cooled) |
Output Current (Force cooled) |
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MPI-S303 |
180 W / 300 W |
+12 V |
15 A |
25 A |
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Item |
Conditions |
Min |
Typ |
Max |
Unit |
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Input Voltage |
Continuous input range |
85 |
115/230 |
264 |
VAC |
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Input Frequency |
AC input |
47 |
50/60 |
63 |
Hz |
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Input Current |
Nominal AC Input Voltage (115VAC) |
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3.5 |
A |
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Inrush Current |
Nominal AC Input Voltage (115VAC/230VAC), one cycle at 25°C cold start |
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|
60/120 |
A |
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No-load input Power |
Nominal AC Input Voltage (115VAC/230VAC) |
|
0.1 |
|
W |
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Switching Frequency |
Frequency conversion |
|
72 |
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KHZ |
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Input Protection |
One non-user serviceable internally located AC input line fuse. Fuse：5A / 250VAC * 1pcs |
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OUTPUT |
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Item |
Conditions |
Min |
Typ |
Max |
Unit |
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Output Voltage |
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+12V |
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DC |
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Output Current |
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25 |
|
A |
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Efficiency |
At input 230VAC, above 1hr. warm up (at 180W/ 300W) |
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94/ 92 |
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% |
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Initial Set Accuracy |
Initial setting accuracy is adjusted at input 115VAC and output at 60% rated load* |
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±1.0 |
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% |
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Minimum Load |
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0 |
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A |
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Hold Up Time |
Nominal AC Input Voltage (at 180W/ 300W) |
16/ 10 |
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mS |
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xLine Regulation |
Measured at rated load with ±10% change in input voltage 115VAC |
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±1.0 |
% |
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Load Regulation |
Measured from 60% to 100% rated load and from 60% to 20% rated load (60% ±40% rated load) |
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±1.0 |
% |
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Ripple & Noise |
Measured at rated load by a 20MHz bandwidth-limited oscilloscope and each output is connected with a 10μF |
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|
120 |
mV |
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Start Up Delay |
Time required for initial output voltage stabilization |
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1 |
3 |
Sec |
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Leakage Current |
At input 264VAC, 63Hz, rated load |
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|
1 |
mA |
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Overvoltage Protection |
For some reason the power supply fails to control itself, the build-in over voltage protection circuit will auto recovery the outputs to prevent damaging external circuits, the trigger point is around 120%~150% of output voltage |
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Short Circuit Protection |
Fully protected against output overload and short circuits. Automatic recovery upon overload condition |
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*Note: The rated load is 300W force cooled |
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ENVIRONMENTAL |
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Item |
Conditions |
Min |
Typ |
Max |
Unit |
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Operating Temperature |
See the following performance curves for the detail |
-20 |
+50 |
+80 |
°C |
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Storage Temperature |
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-40 |
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+85 |
°C |
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Relative Humidity |
Non-condensing |
5 |
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95 |
%RH |
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Cooling |
Forced-cooled when 181W~300W |
23.5 |
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CFM |
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Operating |
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|
5000 |
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m |
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EMC & EMISSIONS |
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Item |
Conditions |
Standard |
Class |
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Conducted |
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EN 55022 / EN 55032 CISPR 22 & FCC Part 15 |
B |
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Radiated |
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EN 55022 / EN 55032 CISPR 22 & FCC Part 15 |
B |
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Harmonic Current |
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EN 61000-3-2 |
D |
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Voltage Flicker |
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EN 61000-3-3 |
B |
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EMC & IMMUNITY |
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Item |
Conditions |
Standard |
Test Level |
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ESD |
±8KV air discharge, ±6KV contact discharge |
IEC 61000-4-2 |
A |
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Radiated |
10V/m |
IEC 61000-4-3 |
A |
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EFT |
±2KV Line & PE |
IEC 61000-4-4 |
A |
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Surges |
L-N:±1KV, L/N-PE:±2KV |
IEC 61000-4-5 |
A |
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Conducted |
10V |
IEC 61000-4-6 |
A |
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Power Magnetic |
10A/m |
IEC 61000-4-8 |
A |
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Dips and Interruptions |
DIP: >95%, 0.5 cycle DIP: 30%, 25 cycles (Note 2) DIP: 60%, 5 cycles (Note 2) INT: >95%, 250 cycles |
IEC 61000-4-11 |
A A / B A / B B |
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Note: 1. As a build-in type power supply, the power supply needs to be installed in a suitable enclosure to pass the EMI/EMC tests. The final assembly has to comply with the valid EMI/EMC and safety. 2. The test result of input 240Vac / 100Vac is criteria A / B. 3. The mounting holes (FG) should be interconnected and routed through the customer's metal base plate to a safe ground to comply with EMI requirements. |
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SAFETY |
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Item |
Conditions |
Min |
Typ |
Max |
Unit |
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Isolation |
IP to OP |
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3000 |
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VAC |
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IP to GND |
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1800 |
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VAC |
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Agency |
Conditions |
standard |
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TUV |
Design to meet
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EN 62368-1 2nd,3rd Edition |
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CB |
IEC 62368-1, 3rd Edition |
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UL/cUL |
UL 62368-1, 3rd Edition, CAN / CSA C22.2 No. 62368-1:19,3rdEdition |
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MODEL SELECTION TABLE |
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Model Number |
Wattage (Convection cooled/ Force cooled) |
Output Voltage |
Output Current (Convection cooled) |
Output Current (Force cooled) |
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MPI-S303 |
180 W / 300 W |
+12 V |
15 A |
25 A |
MPI-S303 – 12V Single Output Power Supply
The MPI-S303 delivers reliable 12V output with a maximum power of 180W under convection cooling and up to 300W with force cooling. It provides 15A output current in convection mode and 25A with force cooling, making it an ideal solution for applications requiring stable high-current performance in a compact footprint.
The ABES MPI300 Series open-frame AC-DC power supply delivers up to 300W with fan cooling and 180W under convection cooling, all within a compact 2×4 inch (50.8 x 101.6 mm) footprint, making it ideal for space-constrained industrial and embedded systems. With efficiency up to 92% and ultra-low no-load input power below 0.1W, the MPI300 Series ensures maximum energy savings and optimized thermal performance. Designed for global compliance, it meets IEC/UL 62368-1 ITE safety standards and EMI CISPR/FCC Class B requirements. Its active power factor correction (PFC) complies with EN 61000-3-2 Class D and EN 61000-3-3, ensuring stable and reliable operation. Ideal for industrial automation, test and measurement equipment, IPC, and telecom systems, the MPI300 Series is a compact, efficient, and safe power solution for demanding applications.
