MEAN WELL RPS-120S-27 119.9W 27V 4.44A Open Frame

Part numberRPS-120S-27
Output voltage 27 V
Rated current 4.44 A
Rated power 119.9 W
$52.11Excluding 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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RPS-120S model selection table Medical - PCB Type
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Key specifications

Complete technical specifications
Output
Output voltage 27 V
Rated current 4.44 A
Rated power 119.9 W
AC input range 80–264 VAC
Typical efficiency 94 %
Mechanical
Operating temperature -30 to 85 °C
Power factor correction Supported
Dimensions (L × W × H) 76.2 × 50.8 × 28 mm

Is this model right for you?

Within the RPS-120S series, the RPS-120S-27 is distinguished by its 27 V output and 25.6 ~ 28.4 V adjustment range. The RPS-120S-12 provides 12 V with an 11.4 ~ 12.6 V range, the RPS-120S-15 provides 15 V with a 14.3 ~ 15.8 V range, the RPS-120S-24 provides 24 V with a 22.8 ~ 25.2 V range, and the RPS-120S-48 provides 48 V with a 45.6 ~ 50.4 V range. Typical efficiency also differs: 94% for the RPS-120S-27, 91% for the RPS-120S-12, 92% for the RPS-120S-15, 93% for the RPS-120S-24, and 93.5% for the RPS-120S-48.

Product overview

The RPS-120S-27 is an AC/DC open frame product in the Medical - PCB Type family. It provides a 27 V output with a 25.6 ~ 28.4 V adjustment range. The input voltage range is 80 ~ 264 VAC and 113 ~ 370 VDC, with a frequency range of 47 ~ 63 Hz. Typical efficiency is 94%. The product measures 76.2 × 50.8 × 28 mm and has a net weight of 130 g.

Where this model fits

The RPS-120S-27 is used in Embedded & Board-level Design. It measures 76.2 × 50.8 × 28 mm and has a net weight of 130 g. The input voltage range is 80 ~ 264 VAC and 113 ~ 370 VDC, with a frequency range of 47 ~ 63 Hz. The output is 27 V with a 25.6 ~ 28.4 V adjustment range.

Complete technical specifications

Rev. 2026-02-28
Output
Output voltage 27 V
Rated current 4.44 A
Rated power 119.9 W
Voltage adjustment range 25.6–28.4 V
Ripple & noise 150 mVp-p
Input
AC input range 80–264 VAC
DC input range 113–370 VDC
Frequency range 47–63 Hz
Typical efficiency 94 %
Power factor 0.94
Power factor correction Supported
Environmental
Operating temperature -30 to 85 °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) 76.2 × 50.8 × 28 mm
Net weight 130.0 g
Safety & compliance
Safety standards IEC 60601-1:2005+A1+A2, TUV BS EN/ EN 60601-1:2006+A1+A12+A2, ANSI/AAMI ES60601-1:2005+A2 CAN/CSA C22.2 No. 60601-1:2014+A2, EAC TP TC 004 approved; Design refer to BS EN/EN60335-1(by request)

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 RPS-120S-27
Brand MEAN WELL
Category AC/DC Open Frame
Series RPS-120S

Approvals and compliance

From the manufacturer's datasheet for this series

Canada

  • CSA

    Certification to a CSA C22.2 standard, the Canadian counterpart of the UL series. Datasheets cite the specific C22.2 number, which is how you tell a power-supply certificate from a luminaire-controlgear one.

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:4KVAC I/P-FG:2KVAC O/P-FG:1.5KVAC

Standards certified against

  • ANSI/AAMI ES60601-1
  • EN 60601-1
  • IEC 60601-1

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.

BS EN/EN60335-1(by request)

Read the datasheet's exact wording

IEC 60601-1:2005+A1+A2, TUV BS EN/ EN 60601-1:2006+A1+A12+A2, ANSI/AAMI ES60601-1:2005+A2 CAN/CSA C22.2 No. 60601-1:2014+A2, EAC TP TC 004 approved; Design refer to BS EN/EN60335-1(by request)

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 RPS-120S-27
Minimum order quantity 1
Country of origin China
Typical packed weight 290 g
Unit weight 130 g

Downloads

RPS-120S model comparison

View all models
ModelOutput voltageRated currentRated powerPriceAvailability
RPS-120S-4848 V2.5 A120 W$52.11
Ships in 3–5 business days
RPS-120S-2424 V5 A120 W$48.64
Ships in 3–5 business days
RPS-120S-27 27 V4.44 A119.9 W$52.11
Ships in 3–5 business days

RPS-120S-27 provides a 27 V output with a 25.6 ~ 28.4 V adjustment range; RPS-120S-12 provides 12 V with an 11.4 ~ 12.6 V range.

RPS-120S-27 provides a 27 V output with a 25.6 ~ 28.4 V adjustment range; RPS-120S-15 provides 15 V with a 14.3 ~ 15.8 V range.

RPS-120S-27 provides a 27 V output with a 25.6 ~ 28.4 V adjustment range; RPS-120S-24 provides 24 V with a 22.8 ~ 25.2 V range.

RPS-120S-27 provides a 27 V output with a 25.6 ~ 28.4 V adjustment range; RPS-120S-48 provides 48 V with a 45.6 ~ 50.4 V range.

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Technical data source

Primary source
MEAN WELL
Datasheet revision
2026-02-28
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.