MEAN WELL LAD-240B 240.12W 27.6V 7.7A Security & Specific

Part numberLAD-240B
Output voltage 27.6 V
Rated current 7.7 A
Rated power 240.12 W
$71.38Excluding 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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LAD-240 model selection table Security—SCP & AD/ ADS/ ADD/ LAD
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Key specifications

Complete technical specifications
Output
Output voltage 27.6 V
Rated current 7.7 A
Rated power 240.12 W
Typical efficiency 87.5 %
Mechanical
Operating temperature -20 to 60 °C
Dimensions (L × W × H) 215 × 115 × 30 mm

Is this model right for you?

Within the LAD-240 series, the LAD-240B lists 240.12 W, 87.5%. By comparison LAD-240A lists 240.12 W, 85.5%; LAD-240C lists 239.87 W, 88%; LAD-240D lists 242.88 W, 88%. Select the model whose rated power matches the installation.

Product overview

The LAD-240B is part of the MEAN WELL LAD-240 series within the AC/DC Security & Specific product class. It operates across an input frequency range of 47 ~ 63Hz and accepts DC input from 240 to 370 VDC. The product measures 215 × 115 × 30 mm and has a net weight of 750 g. Operating temperature spans -20 to 60 °C, with a humidity range of 20 to 95%.

Where this model fits

The LAD-240B is used in Security & Surveillance applications. Its operating temperature range is -20 to 60 °C and humidity range is 20 to 95%. The product measures 215 × 115 × 30 mm and weighs 750 g.

Complete technical specifications

Rev. 2026-01-23
Output
Output voltage 27.6 V
Rated current 7.7 A
Rated power 240.12 W
Input
AC input range 90 ~ 132VAC / 180 ~ 264VAC by switch 240 ~ 370VDC (Default switch at 230VAC)
DC input range 240–370 VDC
Frequency range 47–63 Hz
Typical efficiency 87.5 %
Protection
Over voltage Protected
Over temperature Protected
Reverse polarity Protected
Shut down o/p voltage, re-power on to removed
Environmental
Operating temperature -20 to 60 °C
Storage temperature -30 to 85 °C
Operating humidity 20–95 % RH
Vibration 10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes
Mechanical
Dimensions (L × W × H) 215 × 115 × 30 mm
Net weight 750.0 g
Safety & compliance
Safety standards UL62368-1, BS EN/EN62368-1, AS/NZS62368.1, EAC TP TC 004 approved; Design refer to GB 17945-2010

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 LAD-240B
Brand MEAN WELL
Category AC/DC Security & Specific
Series LAD-240

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.

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.

Isolation and electromagnetic compatibility
Withstand voltage I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
Isolation resistance I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
EMC emission Parameter Standard Test Level / Note

Standards certified against

  • AS/NZS62368.1
  • EN62368-1
  • UL62368-1

Designed to reference

The datasheet lists these as design references. The series was built to them but has not been certified to them, so do not treat them as approvals.

GB 17945-2010

Read the datasheet's exact wording

UL62368-1, BS EN/EN62368-1, AS/NZS62368.1, EAC TP TC 004 approved; Design refer to GB 17945-2010

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 LAD-240B
Minimum order quantity 1
Country of origin China
Typical packed weight 967 g
Unit weight 750 g

Downloads

LAD-240 model comparison

View all models
ModelOutput voltageRated currentRated powerPriceAvailability
LAD-240B 27.6 V7.7 A240.12 W$71.38
Ships in 3–5 business days
LAD-240A13.8 V16.4 A240.12 W$71.38
Ships in 3–5 business days
LAD-240C41.5 V4.78 A239.87 W$71.38
Ships in 3–5 business days

LAD-240B: 7.7 A output current; the rest of the series runs 3.4 A to 16.4 A.

LAD-240B: 240 W rated power; LAD-240D: 243 W.

LAD-240B: 87.5% typical efficiency; LAD-240A: 85.5%; LAD-240C and LAD-240D: 88%.

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Technical data source

Primary source
MEAN WELL
Datasheet revision
2026-01-23
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.