MEAN WELL DRA-40-12 40.08W 12V 3.34A DIN Rail

Part numberDRA-40-12
Output voltage 12 V
Rated current 3.34 A
Rated power 40.08 W
$35.69Excluding tax and shipping
Ships in 3–5 business daysLead time is the time from order to dispatch, and does not include transit time.
Request bulk quote
DRA-40 model selection table DRA Series
  • Genuine product Sourced through our documented supply chain.
  • Worldwide shipping Export documentation handled for you.
  • Commercial invoice Available for every order.
  • Specification support Talk to someone who reads datasheets.

Key specifications

Complete technical specifications
Output
Output voltage 12 V
Rated current 3.34 A
Rated power 40.08 W
AC input range 90–264 VAC
Typical efficiency 85 %
Mechanical
Operating temperature -30 to 70 °C
Dimensions (L × W × H) 40 × 90 × 100 mm

Is this model right for you?

Within the DRA-40 series, DRA-40-12 lists a 12 to 15 V output adjustment range, 3.34 A output current, 40.08 W rated power, 85% typical efficiency, and 120 mVp-p ripple and noise. DRA-40-24 lists a 24 to 30 V output adjustment range, 1.7 A output current, 40.8 W rated power, 87% typical efficiency, and 150 mVp-p ripple and noise.

Product overview

The DRA-40-12 provides a 12 to 15 V output adjustment range with 3.34 A output current and 40.08 W rated power. Typical efficiency is 85%, ripple and noise is 120 mVp-p, and the input frequency range is 47 to 63 Hz. Dimensions are 40 × 90 × 100 mm and net weight is 300 g.

Where this model fits

The DRA-40-12 provides a 12 to 15 V output adjustment range and 3.34 A output current. Its operating temperature range is -30 to 70 °C and humidity range is 20 to 90%. Dimensions are 40 × 90 × 100 mm and net weight is 300 g.

Complete technical specifications

Rev. 2026-03-31
Output
Output voltage 12 V
Rated current 3.34 A
Rated power 40.08 W
Voltage adjustment range 12–15 V
Ripple & noise 120 mVp-p
Input
AC input range 90–264 VAC
DC input range 127–370 VDC
Frequency range 47–63 Hz
Typical efficiency 85 %
Environmental
Operating temperature -30 to 70 °C
Storage temperature -40 to 85 °C
Operating humidity 20–90 % RH
Vibration 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes
Mechanical
Dimensions (L × W × H) 40 × 90 × 100 mm
Net weight 300.0 g
Safety & compliance
Safety standards UL62368-1, TUV BS EN/EN62368-1, EAC TP TC 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 DRA-40-12
Brand MEAN WELL
Category AC/DC DIN Rail
Series DRA-40

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.

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
EMC emission Compliance to BS EN/EN55032 (CISPR32) Class B, BS EN/EN61000-3-2,-3, EAC TP TC 020
EMC immunity Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN55035, BS EN/EN61204-3, light industry level, criteria A, EAC TP TC 020

Standards certified against

  • EN62368-1
  • UL62368-1
Read the datasheet's exact wording

UL62368-1, TUV BS EN/EN62368-1, EAC TP TC 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 DRA-40-12
Minimum order quantity 1
Country of origin China
Typical packed weight 474 g
Unit weight 300 g

Downloads

DRA-40 model comparison

View all models
ModelOutput voltageRated currentRated powerPriceAvailability
DRA-40-12 12 V3.34 A40.08 W$35.69
Ships in 3–5 business days
DRA-40-2424 V1.7 A40.8 W$33.16
Ships in 3–5 business days

DRA-40-12: 12 ~ 15V output adjustment range, 3.34A output current, 40.08W rated power, 85% typical efficiency, 120mVp-p ripple and noise. DRA-40-24: 24 ~ 30V output adjustment range, 1.7A output current, 40.8W rated power, 87% typical efficiency, 150mVp-p ripple and noise.

Request a bulk quote

Tell us the quantity and target date and we will come back with pricing, lead time and stock position for this part number.

  1. 1 We confirm the part number and quantity against current stock.
  2. 2 You receive pricing, lead time and freight options by email.
  3. 3 Approve the quotation and we issue the invoice and shipping documents.

Request a quote for DRA-40-12

Confirm quantity and destination and we will come back with pricing and lead time.

Quoting DRA-40-12 View
Have a BOM? Reply to our confirmation email with the file attached.
We use your details only to answer this request.

Technical data source

Primary source
MEAN WELL
Datasheet revision
2026-03-31
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.