LOP-300-15

AC/DC Open Frame Power Supply (PSU), ITE, Industrial, Household, Medical, 1 Output, 180 W

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
Manufacturer: MEAN WELL
Product type: AC / DC Open Frame Power Supplies
SVHC: No SVHC (25-Jun-2025)
Product Range: LOP-300 Series
No. of Outputs: 1 Output
Input Voltage VAC: 80V AC to 264V AC
Power Supply Output Type: Fixed
Output Current - Output 1: 20A
Output Current - Output 2: -
Output Current - Output 3: -
Output Current - Output 4: -
Output Voltage - Output 1: 15V
Output Voltage - Output 2: -
Output Voltage - Output 3: -
Output Voltage - Output 4: -
Power Supply Applications: ITE, Industrial, Household, Medical
Power Rating (Convection Cooling): 180W
Delivery and price
Units per pack	50
Price	28.03 €
Current stock	10+
Lead time	30 days
Datasheet
**- LOP 300  series** 

300W  4"×2" Low Profile Open Frame Power Supply 

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 https://www.meanwell.com/serviceGTIN.aspx 

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## **  **   ~~TLt~~  

_File Name:LOP-300-SPEC   2024-01-05_ 

## **-** 300W  4"×2" Low Profile Open Frame Power Supply **LOP 300  series** 

## **SPECIFICATION** 

||**MODEL**<br>**DC VOLTAGE**<br>**CURRENT**<br>**Peak(3sec.)**<br>**Convection**<br>**Convection**<br>**RATED**<br>**POWER**<br>**OUTPUT**<br>**LINE REGULATION**<br>**VOLTAGE ADJ. RANGE**<br>**(MAIN OUTPUT)**<br>**LOAD REGULATION**<br>**SETUP, RISE TIME**<br>**HOLD UP TIME(Typ.)**<br>**VOLTAGE RANGE Note.4**<br>**FREQUENCY RANGE**<br>**POWER FACTOR**<br>**EFFICIENCY(Typ.)**<br>**INPUT**<br>**FUNCTION**<br>**INRUSH CURRENT(Typ.)**<br>**WORKING HUMIDITY**<br>**WORKING TEMP.**<br>**EXTERNAL FAN SUPPLY**<br>**OVER TEMPERATURE**<br>**STORAGE TEMP.,**<br>**HUMIDITY**<br>**TEMP. COEFFICIENT**<br>**VIBRATION**<br>**OVERLOAD**<br>**OVER VOLTAGE**<br>**AC CURRENT(Typ.)**<br>**RIPPLE & NOISE (max.)**<br>**Note.2**<br>**VOLTAGE TOLERANCE**<br> **Note.3**<br>**ENVIRONMENT**<br>**PROTECTION**<br>**Peak(3sec.)**<br>**10.98CFM**<br>**10.98CFM**<br>**LEAKAGE CURRENT**|**MODEL**<br>**DC VOLTAGE**<br>**CURRENT**<br>**Peak(3sec.)**<br>**Convection**<br>**Convection**<br>**RATED**<br>**POWER**<br>**OUTPUT**<br>**LINE REGULATION**<br>**VOLTAGE ADJ. RANGE**<br>**(MAIN OUTPUT)**<br>**LOAD REGULATION**<br>**SETUP, RISE TIME**<br>**HOLD UP TIME(Typ.)**<br>**VOLTAGE RANGE Note.4**<br>**FREQUENCY RANGE**<br>**POWER FACTOR**<br>**EFFICIENCY(Typ.)**<br>**INPUT**<br>**FUNCTION**<br>**INRUSH CURRENT(Typ.)**<br>**WORKING HUMIDITY**<br>**WORKING TEMP.**<br>**EXTERNAL FAN SUPPLY**<br>**OVER TEMPERATURE**<br>**STORAGE TEMP.,**<br>**HUMIDITY**<br>**TEMP. COEFFICIENT**<br>**VIBRATION**<br>**OVERLOAD**<br>**OVER VOLTAGE**<br>**AC CURRENT(Typ.)**<br>**RIPPLE & NOISE (max.)**<br>**Note.2**<br>**VOLTAGE TOLERANCE**<br> **Note.3**<br>**ENVIRONMENT**<br>**PROTECTION**<br>**Peak(3sec.)**<br>**10.98CFM**<br>**10.98CFM**<br>**LEAKAGE CURRENT**|**MODEL**<br>**DC VOLTAGE**<br>**CURRENT**<br>**Peak(3sec.)**<br>**Convection**<br>**Convection**<br>**RATED**<br>**POWER**<br>**OUTPUT**<br>**LINE REGULATION**<br>**VOLTAGE ADJ. RANGE**<br>**(MAIN OUTPUT)**<br>**LOAD REGULATION**<br>**SETUP, RISE TIME**<br>**HOLD UP TIME(Typ.)**<br>**VOLTAGE RANGE Note.4**<br>**FREQUENCY RANGE**<br>**POWER FACTOR**<br>**EFFICIENCY(Typ.)**<br>**INPUT**<br>**FUNCTION**<br>**INRUSH CURRENT(Typ.)**<br>**WORKING HUMIDITY**<br>**WORKING TEMP.**<br>**EXTERNAL FAN SUPPLY**<br>**OVER TEMPERATURE**<br>**STORAGE TEMP.,**<br>**HUMIDITY**<br>**TEMP. COEFFICIENT**<br>**VIBRATION**<br>**OVERLOAD**<br>**OVER VOLTAGE**<br>**AC CURRENT(Typ.)**<br>**RIPPLE & NOISE (max.)**<br>**Note.2**<br>**VOLTAGE TOLERANCE**<br> **Note.3**<br>**ENVIRONMENT**<br>**PROTECTION**<br>**Peak(3sec.)**<br>**10.98CFM**<br>**10.98CFM**<br>**LEAKAGE CURRENT**|**LOP-300-12**|**LOP-300-15**|**LOP-300-18**|**LOP-300-24 **|**LOP-300-27**|**LOP-300-30**|**LOP-300-36 **|**LOP-300-48**|**LOP-300-54**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|||**DC VOLTAGE**||12V|15V|18V|24V|27V|30V|36V|48V|54V|
|||**CURRENT**<br>**Peak(3sec.)**<br>**Convection**<br>**Convection**<br>**RATED**<br>**POWER**<br>**RIPPLE & NOISE (max.)**<br>**Note.2**<br>**Peak(3sec.)**<br>**10.98CFM**<br>**10.98CFM**|**Peak(3sec.)**|37.5A|30A|25A|18.8A|16.7A|15A|12.5A|9.4A|8.3A|
||||**10.98CFM**|25A|20A|16.7A|12.5A|11.1A|10A|8.3A|6.3A|5.6A|
||||**Convection**|15A|12A|10A|7.5A|6.7A|6A|5A|3.8A|3.4A|
||||**Peak(3sec.)**|450W|450W|450W|450W|450W|450W|450W|450W|450W|
||||**10.98CFM**|300W|300W|300.6W|300W|299.7W|300W|299.8W|302.4W|302.4W|
||||**Convection**|180W|180W|180W|180W|180.9W|180W|180W|182.4W|183.6W|
|||||120mVp-p|150mVp-p|180mVp-p|200mVp-p|200mVp-p|250mVp-p|250mVp-p|250mVp-p|250mVp-p|
|||**VOLTAGE ADJ. RANGE**<br>**(MAIN OUTPUT)**||11.4~12.6V|14.3~15.8V|17.1~18.9V|22.8~25.2V|25.6 ~ 28.4V|28.5 ~31.5V|34.2 ~37.8V|45.6 ~50.4V|52 ~58V|
|||**VOLTAGE TOLERANCE**<br> **Note.3**||±3.0%|±3.0%|±3.0%|±2.0%|±1.0%|±1.0%|±1.0%|±1.0%|±1.0%|
|||**LINE REGULATION**||±0.5%|±0.5%|±0.5%|±0.5%|±0.5%|±0.5%|±0.5%|±0.5%|±0.5%|
|||**LOAD REGULATION**||±1.0%|±1.0%|±1.0%|±1.0%|±1.0%|±1.0%|±1.0%|±1.0%|±1.0%|
|||**SETUP, RISE TIME**||1000ms, 30ms/230VAC          1500ms, 30ms/115VAC at full load|||||||||
|||**HOLD UP TIME(Typ.)**||16ms@180W load  ,  8ms@300W load|||||||||
|||**VOLTAGE RANGE Note.4**||80 ~ 264VAC         113 ~ 370VDC|||||||||
|||**FREQUENCY RANGE**||47 ~ 63Hz|||||||||
|||**POWER FACTOR**||PF>0.95/230VAC PF>0.98/115VAC at full load|||||||||
|||**EFFICIENCY(Typ.)**||92.5%|93%|93.5%|93%|93%|93%|94%|94%|94%|
|||**AC CURRENT(Typ.)**||3.5A/115VAC     1.8A/230VAC|||||||||
|||**INRUSH CURRENT(Typ.)**||COLD START 40A/115VAC          80A/230VAC|||||||||
|||**LEAKAGE CURRENT**||Earth leakage current<br>, touch current<br>< 500   A<br>< 70   A<br>(rms) @ 264VAC<br>(rms) @ 264VAC<br>μ<br>μ|||||||||
|||**OVERLOAD**||105 ~ 150% rated output power,<br>Protection type : Hiccup after 3 sec, recovers automatically(3 sec)<br>after fault condition is removed|||||||||
|||**OVER VOLTAGE**||16.5 ~ 19.5V<br>29.7 ~ 35.1V<br>39.6 ~ 46.8V<br>13.2 ~ 15.6V<br>Protection type : Shut down o/p voltage, re-power on to recover<br>52.8 ~ 62.4V<br>26.4 ~ 31.2V<br>19.8 ~ 23.4V<br>59.4 ~ 67.5V<br>33 ~ 39V|||||||||
|||**OVER TEMPERATURE**||Protection type :<br>re-power on to recover<br>Shut down o/p voltage, recovers automatically after temperature goes down or|||||||||
|||**EXTERNAL FAN SUPPLY**||12V@0.5A for driving a fan / 12V@0.1A without fan cooling ;<br>Tolerance -20% ~ +15% at main output 20% rated current<br>(10.98CFM)|||||||||
|||**WORKING TEMP.**||-40 ~ +80℃(Refer to "Derating Curve")|||||||||
|||**WORKING HUMIDITY**||20 ~ 90% RH non-condensing|||||||||
|||**STORAGE TEMP.,**<br>**HUMIDITY**||-40 ~ +85℃, 10 ~ 95% RH non-condensing|||||||||
|||**TEMP. COEFFICIENT**||±0.03%/℃(0 ~ 50℃)|||||||||
|||**VIBRATION**||10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes|||||||||



_File Name:LOP-300-SPEC   2024-01-05_ 

## **-** 300W  4"×2" Low Profile Open Frame Power Supply **LOP 300  series** 

||**SAFETY &**<br>**EMC**<br>**(Note 5)**<br>**OTHERS**<br>**NOTE**|**SAFETY STANDARDS**|CB    IEC62368-1, IEC60335-1, IEC61558-1/-2-16, IEC60601-1;<br>TUV  BS EN/EN62368-1, BS EN/EN60335-1, BS EN/EN61558-1/-2-16, BS EN/EN60601-1<br>;<br>(3.2 Version)<br>UL    UL62368-1,<br>;<br>ANSI / AAMI ES60601-1(3.2 Version)<br>CCC GB4943.1 ;  RCM  AS/NZS 61558-1/-2-16;  EAC  TPTC 004 approved.|CB    IEC62368-1, IEC60335-1, IEC61558-1/-2-16, IEC60601-1;<br>TUV  BS EN/EN62368-1, BS EN/EN60335-1, BS EN/EN61558-1/-2-16, BS EN/EN60601-1<br>;<br>(3.2 Version)<br>UL    UL62368-1,<br>;<br>ANSI / AAMI ES60601-1(3.2 Version)<br>CCC GB4943.1 ;  RCM  AS/NZS 61558-1/-2-16;  EAC  TPTC 004 approved.|CB    IEC62368-1, IEC60335-1, IEC61558-1/-2-16, IEC60601-1;<br>TUV  BS EN/EN62368-1, BS EN/EN60335-1, BS EN/EN61558-1/-2-16, BS EN/EN60601-1<br>;<br>(3.2 Version)<br>UL    UL62368-1,<br>;<br>ANSI / AAMI ES60601-1(3.2 Version)<br>CCC GB4943.1 ;  RCM  AS/NZS 61558-1/-2-16;  EAC  TPTC 004 approved.|
|---|---|---|---|---|---|
|||**ISOLATION RESISTANCE**|Primary-Secondary: 2xMOPP, Primary-Earth:1xMOPP, Secondary-Earth:1xMOPP|||
|||**OVER VOLTAGE CATEGORY**|IEC/EN 61558-1/-2-16(<br>altitude up to 2000M )<br>OVCⅢ,<br>IEC/EN/UL 62368-1    (OVCⅡ, altitude up to 5000M )<br>IEC/EN 60335-1         (OVCⅡ, altitude up to 5000M )<br>IEC/EN 60601-1         (OVCⅡ, altitude up to 4000M )|||
|||**PROTECTIVE EXTRA-LOW**<br>**VOLTAGE**|IEC/EN61558-2-16 (SELV, 12~48V  )<br>IEC/EN/UL 62368-1 (SELV / ES1,12~48V )|||
|||**WITHSTAND VOLTAGE**|I/P-O/P:4KVAC     I/P-FG:2KVAC     O/P-FG:1.5KVAC|||
|||**EMC IMMUNITY**<br>**EMC EMISSION**<br>**ISOLATION RESISTANCE**|I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH|||
||||**Parameter**|**Standard**|**Test Level / Note**|
||||Conducted & Radiated<br>Harmonic Current|BS EN/EN55032(CISPR32)<br>BS EN/EN55011(CISPR11)|ClassⅠClass B , ClassⅡ: Class A<br>:|
|||||BS EN/EN55014(CISPR32)|ClassⅠClass B<br>:|
|||||BS EN/EN61000-3-2|Class A|
||||Voltage Flicker|BS EN/EN61000-3-3|-------|
||||EN61000-6-2<br>BS EN/EN55035,BS EN/|||
||||**Parameter**|**Standard**|**Test Level /Note**|
||||ESD|BS EN/EN61000-4-2|Level 4, 15KV air ; Level 4, 8KV contact|
||||Radiated Susceptibility|BS EN/EN61000-4-3|Level 3, 10V/m( 80MHz~2.7GHz )<br>Table 9, 9~28V/m( 385MHz~5.78GHz )|
||||EFT/Burest|BS EN/EN61000-4-4|Level 3, 2KV|
||||Surge|BS EN/EN61000-4-5|Level 4,  4KV/Line-FG ; 2KV/Line-Line|
||||Conducted|BS EN/EN61000-4-6|Level 3, 10V|
||||Magnetic Field|BS EN/EN61000-4-8|Level 4, 30A/m|
||||Voltage Dips and interruptions|BS EN/EN61000-4-11|＞95% dip 0.5 periods, 100% dip 1 periods, 30% dip 25 periods,<br>＞95% interruptions 250 periods|
|||**MTBF**|2805.6K hrs min.      Telcordia SR-332 (Bellcore) ;      384.4K hrs min.      MIL-HDBK-217F (25℃)|||
|||**DIMENSION**|101.6*50.8*<br>(L*W*H)<br>25.4mm|||
|||**PACKING**|0.21Kg; 36pcs/10Kg/0.95CUFT|||
|||℃<br><br><br><br><br><br><br><br>(as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf)<br>�：https://www.meanwell.com/serviceDisclaimer.aspx<br>μ<br>μ||||



_File Name:LOP-300-SPEC   2024-01-05_ 

## 300W  4"×2" Low Profile Open Frame Power Supply 

## **- LOP 300  series** 

## **Block Diagram** 

**==> picture [487 x 629] intentionally omitted <==**

**----- Start of picture text -----**<br>
PFC fosc : 70KHz<br>PWM fosc : 100KHz<br>EMI   EMI  FILTER POWER RECTIFIERS +V<br>I/P FILTER & SWITCHING & -V<br>RECTIFIER FILTER<br>RECTIFIERS<br>& +12V<br>FG FILTER FAN SUPPLY<br>DETECTION<br>CIRCUIT<br>O.T.P. O.L.P. CONTROL<br>O.V.P.<br>Derating Curve<br>300<br>With                     Fan10.98CFM<br>240<br>230<br>180<br>160<br>115VAC Convection<br>90<br>80<br>230VAC Convection<br>-40 -35 -30 -20 -10 0 10 20 30 40 45 50 60 70 80 (HORIZONTAL)<br>AMBIENT TEMPERATURE ( ℃ )<br>Cooling Max. Output Power<br>Free air convection 180W<br>Force-cooled with external Fan 300W<br>Output Derating VS Input Voltage<br>100<br>90<br>80<br>70<br>60<br>50<br>40<br>80 100 115 120 140 160 180 200 220 240 264<br>INPUT VOLTAGE (VAC) 60Hz<br>LOAD (W)<br>LOAD (%)<br>**----- End of picture text -----**<br>


_File Name:LOP-300-SPEC   2024-01-05_ 

**- LOP 300  series** 

300W  4"×2" Low Profile Open Frame Power Supply 

## **Mechanical Specification** 

**==> picture [479 x 534] intentionally omitted <==**

**----- Start of picture text -----**<br>
Unit:mm<br>101.6<br>3.175 95.25<br>CN101<br>2 LED<br>1<br>1<br>FS2<br>2<br>3<br>3 CN2<br>4<br>2<br>5<br>1 6<br>CN1<br>FS1 HS1<br>i8: a<br>Air flow<br>direction<br>FAN =<br>10.98CFM<br>55<br>AC Input Connector (CN1) : JST B3P-VH or equivalent DC Output Connector (CN2) : JST B6P-VH or equivalent<br>Pin No. Assignment Mating Housing Terminal Pin No. Assignment Mating Housing Terminal<br>1 AC/L 1,2,3 +V JST VHR JST SVH-21T-P1.1<br>JST VHR JST SVH-21T-P1.1<br>2 No Pin 4,5,6 -V or equivalent or equivalent<br>or equivalent or equivalent<br>3 AC/N<br>ee<br>FAN Connector(CN101) :  JSTB2B-PH-K-S or equivalent<br>Pin No. Assignment Mating Housing Terminal<br>1 +12Vaux JST PHR-2 JST SPH-002T-P0.5S<br>a 2 DC COM or equivalent or equivalent<br>Note:<br>Class Ⅰ System: Mounting holes marked with have to be connected to safety earth.<br>Class Ⅱ System: Unnecessary to connect with safety earth.<br>33.<br>φ<br>3.175 4-<br>50.8 44.45<br>50mm<br>.4±1<br>25<br>3 max.<br>     1  3362   3<br>**----- End of picture text -----**<br>


## **Installation Manual** 

Please refer to : http://www.meanwell.com/webnet/search/InstallationSearch.html 

_File Name:LOP-300-SPEC   2024-01-05_
Updated at June 10, 2026
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