MEAN WELL LOP-300-12 300W 12V 25A Open Frame

Part numberLOP-300-12
Output voltage 12 V
Rated current 25 A
Rated power 300 W
$60.01Excluding tax and shipping
Ships in 3–5 business daysLead time is the time from order to dispatch, and does not include transit time.
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LOP-300 model selection table LOP Series
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Key specifications

Complete technical specifications
Output
Output voltage 12 V
Rated current 25 A
Rated power 300 W
AC input range 80–264 VAC
Mechanical
Operating temperature -40 to 80 °C
Power factor correction Supported
Dimensions (L × W × H) 101.6 × 50.8 × 25.4 mm

Is this model right for you?

The LOP-300-12 lists 80 ~ 264Vac 113 ~ 370Vdc input, the same as the other models in the LOP-300 series. They are distinguished by details this page does not carry; the datasheet lists them in full.

Product overview

The LOP-300-12 is an AC/DC Open Frame product from MEAN WELL in the LOP-300 series. Its input range is 80 ~ 264Vac or 113 ~ 370Vdc with a frequency range of 47 ~ 63Hz. The unit measures 101.6 × 50.8 × 25.4 mm and has a net weight of 210 g.

Where this model fits

The LOP-300-12 is used in Embedded & Board-level Design. Its dimensions are 101.6 × 50.8 × 25.4 mm and its net weight is 210 g. The operating temperature range is -40 to 80 °C and the humidity range is 20 to 90%.

Complete technical specifications

Rev. 2026-06-17
Output
Output voltage 12 V
Rated current 25 A
Rated power 300 W
Input
AC input range 80–264 VAC
DC input range 113–370 VDC
Frequency range 47–63 Hz
Power factor 0.95
Power factor correction Supported
Protection
Overload Protected
Over voltage Protected
Over temperature Protected
Hiccup after 3 sec, recovers automatically(3 sec)
Environmental
Operating temperature -40 to 80 °C
Storage temperature -40 to 85 °C
Operating humidity 20–90 % RH
Mechanical
Dimensions (L × W × H) 101.6 × 50.8 × 25.4 mm
Net weight 210.0 g
Safety & compliance
Safety standards CB IEC62368-1, IEC60335-1, IEC61558-1/-2-16, IEC60601-1; TUV BS EN/EN62368-1, BS EN/EN60335-1, BS EN/EN61558-1/-2-16, BS EN/EN60601-1(3.2 Version); UL UL62368-1, ANSI / AAMI ES60601-1(3.2 Version) ; CCC GB4943.1 ; RCM AS/NZS 61558-1/-2-16; EAC TPTC 004 approved.

These approvals are recorded for the series as a whole. Where a line names particular models or ratings, it applies only to those — read it against this part number, and ask us for the certificate if your approval process needs it.

Identification
Part number LOP-300-12
Brand MEAN WELL
Category AC/DC Open Frame
Series LOP-300

Approvals and compliance

From the manufacturer's datasheet for this series

United States

  • UL

    UL Listing or Recognition means UL Solutions tested samples against the applicable UL safety standard and audits the factory that builds them. A UL file number is the usual evidence an inspector or specifier asks for in North America.

Europe

  • TÜV

    A TÜV certificate is third-party testing against the European EN standard. It is the evidence behind a CE declaration rather than a replacement for it: CE remains the manufacturer's own declaration, and the TÜV report is what makes that declaration defensible.

International

  • CB Scheme

    A CB Test Certificate reports testing against the IEC standard and is accepted by member certification bodies as the basis for a national approval. It shortens a new-country approval rather than granting market access by itself, so it is the most useful item on this list when you are entering a market that is not shown here.

China

  • CCC

    China Compulsory Certification. Mandatory for the product categories in its scope; where it applies, a shipment without it is not clearable. Certification is against the GB standard the datasheet cites.

Eurasian Economic Union

  • EAC

    Conformity with the Eurasian Economic Union technical regulations, covering Russia, Belarus, Kazakhstan, Armenia and Kyrgyzstan. TP TC 004 is the low-voltage regulation and TP TC 020 the electromagnetic-compatibility one, so which number appears tells you what was assessed.

Australia and New Zealand

  • RCMSupplier declaration

    The Regulatory Compliance Mark covers electrical safety and electromagnetic compatibility for Australia and New Zealand. It is applied by a registered local supplier against an AS/NZS standard, which is why the datasheet cites AS/NZS numbers alongside it.

Isolation and electromagnetic compatibility
Withstand voltage I/P-O/P:4KVac I/P-FG:2KVac O/P-FG:1.5KVac
Isolation resistance Primary-Secondary: 2xMOPP, Primary-Earth:1xMOPP, Secondary-Earth:1xMOPP
EMC emission Parameter Conducted & Radiated Standard Test Level / Note

Standards certified against

  • ANSI / AAMI ES60601-1
  • AS/NZS 61558-1/-2-16
  • EN60335-1
  • EN60601-1
  • EN61558-1/-2-16
  • EN62368-1
  • GB4943.1
  • IEC60335-1
  • IEC60601-1
  • IEC61558-1/-2-16
  • IEC62368-1
  • UL62368-1
Read the datasheet's exact wording

CB IEC62368-1, IEC60335-1, IEC61558-1/-2-16, IEC60601-1; TUV BS EN/EN62368-1, BS EN/EN60335-1, BS EN/EN61558-1/-2-16, BS EN/EN60601-1(3.2 Version); UL UL62368-1, ANSI / AAMI ES60601-1(3.2 Version) ; CCC GB4943.1 ; RCM AS/NZS 61558-1/-2-16; EAC TPTC 004 approved.

Reproduced unedited from the manufacturer's datasheet. Where an approval covers only some models, the wording says so. Ask us for the certificate itself if your approval process needs it.

Certificates

Certificate copy supplied with this model.

  • CE · R50453592

    100%
    CE certificate R50453592

    CE · Certificate number R50453592

Ordering & shipping information

Order and delivery terms
Part number LOP-300-12
Minimum order quantity 1
Country of origin China
Typical packed weight 428 g
Unit weight 210 g

Downloads

LOP-300 model comparison

View all models
ModelOutput voltageRated currentRated powerPriceAvailability
LOP-300-12 12 V25 A300 W$60.01
Ships in 3–5 business days
LOP-300-4848 V6.3 A302.4 W$60.01
Ships in 3–5 business days
LOP-300-1818 V16.7 A300.6 W$71.41
Ships in 3–5 business days

LOP-300-12: 12 V output; the rest of the series runs 15 V to 54 V.

LOP-300-12: 25 A output current; the rest of the series runs 5.6 A to 20 A.

LOP-300-12: 300 W rated power; LOP-300-18: 301 W; LOP-300-48 and LOP-300-54: 302 W.

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Technical data source

Primary source
MEAN WELL
Datasheet revision
2026-06-17
Last verified

View the manufacturer datasheet How we source and verify product data

Specifications are transcribed from the manufacturer datasheet and are subject to change without notice. The current manufacturer datasheet governs in case of any discrepancy.