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Mean Well RPS-45-48 Green Power Supply 45.1W 48V 0.94A - Medical Power Supply

Name: Mean Well RPS-45-48 Green Power Supply 45.1W 48V 0.94A - Medical Power Supply
Brand: Mean Well
SKU: RPS-45-48
Price: 16.7 USD
Availability: InStock

3" x 2" compact sizemedical safety approvedno load power consumption < 0.1Wextremely low leakage current

SKU RPS-45-48

$16.70 USD

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Overview

RPS-45-48 is the 48V output model of this series: rated current 0.94A, rated power 45.1W, typical efficiency 91%.

RPS-45 is a 45W highly reliable green PCB type medical power supply with a high power density on the 3” by 2” footprint. It accepts 80~264VAC input and offers various output voltages between 3.3V and 48V. The working efficiency is up to 91% and the extremely low no load power consumption is down below 0.1W. RPS-45 is able to be used for ClassⅡ(no FG) system design. The extremely low leakage current is less than 100μA. In addition, it conforms to international medical regulations (2*MOPP) and EMC BS EN/EN55011, perfectly fitting all kinds of BF rated “patient contact” medical system equipment.

Features

3"×2" compact size
Medical safety approved (2 x MOPP) according to ANSI/AAMI ES60601-1 and IEC/BS EN/EN60601-1
Suitable for BF application with appropriate system consideration
Cooling by free air convection
EMI class B for class Ⅱ configuration
No load power consumption<0.1W
Extremely low leakage current
Protections: Short circuit / Overload / Over voltage
Lifetime > 50K hours
Operating altitude up to 4000 meters
3 years warranty

Specifications

RPS-45-48Specifications from the official datasheet (2024-11-22 edition)

OUTPUT

DC VOLTAGE: 48V
RATED CURRENT: 0.94A
CURRENT RANGE: 0 ~ 1.03A
RATED POWER: 45.1W
PEAK LOAD(10sec.)^Note.2: 49.4W
RIPPLE & NOISE (max.)^Note.3: 120mVp-p
VOLTAGE ADJ.RANGE: 45.6~52.8V
VOLTAGE TOLERANCE^Note.4: ±1.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±1.0%
SETUP, RISE TIME: 500ms, 30ms / 230VAC 500ms, 30ms / 115VAC at full load
HOLD UP TIME (Typ.): 30ms / 230VAC 16ms / 115VAC at full load

INPUT

VOLTAGE RANGE^Note.5: 80 ~ 264VAC
FREQUENCY RANGE: 47 ~ 63Hz
EFFICIENCY (Typ.): 91%
AC CURRENT (Typ.): 1.2A / 115VAC 1A / 230VAC
INRUSH CURRENT (Typ.): COLD STAR 30A/115VAC 60A/230VAC
LEAKAGE CURRENT(max.)^Note.6: Touch current< 100μA/264VAC

PROTECTION

OVERLOAD: 115 ~ 150% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE: 55.2~64.8V Protection type : Shut down o/p voltage, re-power on to recover

ENVIRONMENT

WORKING TEMP.: -30 ~ +70℃ (Refer to "Derating Curve")
WORKING HUMIDITY: 20% ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +85℃, 10 ~ 95% RH non-condensing
TEMP. COEFFICIENT: ±0.03% / ℃ (0 ~ 50℃)
VIBRATION: 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes
OPERATING ALTITUDE^Note.7: 4000 meters

SAFETY & EMC

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)
ISOLATION LEVEL: Primary-Secondary: 2xMOPP
WITHSTAND VOLTAGE: I/P-O/P: 4KVAC
ISOLATION RESISTANCE: I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION: Parameter Standard Test Level

Conducted emission BS EN/EN55011 (CISPR11) Class B
Radiated emission BS EN/EN55011 (CISPR11) Class B
Harmonic current BS EN/EN61000-3-2 Class A
Voltage flicker BS EN/EN61000-3-3
EMC IMMUNITY: BS EN/EN55035, BS EN/EN60601-1-2

Parameter Standard Test Level

ESD BS EN/EN61000-4-2 Level 4, 15KV air; Level 4, 8KV contact
RF field susceptibility BS EN/EN61000-4-3 Level 3, 10V/m( 80MHz~2.7GHz ) Table 9, 9~28V/m( 385MHz~5.78GHz )
EFT bursts BS EN/EN61000-4-4 Level 3, 2KV
Surge susceptibility BS EN/EN61000-4-5 Level 4, 2KV/Line-Line
Conducted susceptibility BS EN/EN61000-4-6 Level 3, 10V
Magnetic field immunity BS EN/EN61000-4-8 Level 4, 30A/m
Voltage dip, interruption BS EN/EN61000-4-11 100% dip 1 periods, 30% dip 25 periods, 100% interruptions 250 periods

Parameter	Standard	Test Level
Conducted emission	BS EN/EN55011 (CISPR11)	Class B
Radiated emission	BS EN/EN55011 (CISPR11)	Class B
Harmonic current	BS EN/EN61000-3-2	Class A
Voltage flicker	BS EN/EN61000-3-3

Parameter	Standard	Test Level
ESD	BS EN/EN61000-4-2	Level 4, 15KV air; Level 4, 8KV contact
RF field susceptibility	BS EN/EN61000-4-3	Level 3, 10V/m( 80MHz~2.7GHz ) Table 9, 9~28V/m( 385MHz~5.78GHz )
EFT bursts	BS EN/EN61000-4-4	Level 3, 2KV
Surge susceptibility	BS EN/EN61000-4-5	Level 4, 2KV/Line-Line
Conducted susceptibility	BS EN/EN61000-4-6	Level 3, 10V
Magnetic field immunity	BS EN/EN61000-4-8	Level 4, 30A/m
Voltage dip, interruption	BS EN/EN61000-4-11	100% dip 1 periods, 30% dip 25 periods, 100% interruptions 250 periods

OTHERS

MTBF: 3334.3K hrs min. Telcordia SR-332 (Bellcore) ; 726.2K hrs min. MIL-HDBK-217F (25℃)
DIMENSION (L*W*H): 76.2*50.8*24mm or 3" * 2" *0.945" inch
PACKING: 0.11Kg; 120pcs/14.2Kg/0.94CUFT

Test conditions and notes8

1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
2. 33% Duty cycle maximum within every 30 seconds. Average output power should not exceed the rated power.
3. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1μf & 47μf parallel capacitor.
4. Tolerance : includes set up tolerance, line regulation and load regulation.
5. Derating may be needed under low input voltages. Please check the derating curve for more details.
6. Touch current was measured from primary input to DC output.
7. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).
8. The power supply is considered a component which will be installed into a final equipment. "All the EMC tests are been executed by mounting the unit on a 360mm*360mm metal plate with 1mm of thickness." The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.” (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )

Technical drawings

RPS-45-48 Mechanical Specification — Mechanical Specification

Typical applications

Oral irrigator
Hemodialysis machine
Medical computer monitors
Sleep apnea devices

Downloads

Certificates7

Mean Well E227340 UL Certificate PDF Download

Mean Well 0147476-EAC Certificate PDF Download

Mean Well RPS-45-65-TUV Certificate PDF Download

Mean Well RPS-45-65-CB Certificate PDF Download

Mean Well RPS-45-EMC Certificate PDF Download

Mean Well RPS-45-CE-dec Certificate PDF Download

Mean Well RPS-45-UK-dec Certificate PDF Download

Test reports1

Mean Well RPS-45-48 Test Report PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the RPS-45-48 for a 48V industrial controller or communication device?

Yes, if the equipment requires a constant 48V output and draws no more than 0.94A or 45.1W. That output profile fits many low-current 48V control and communication loads.

Is the RPS-45-48 suitable for compact 48V instrumentation inside medical or laboratory equipment?

It can be used for 48V subsystems that stay within 0.94A and 45.1W. This model is medical safety approved and features extremely low leakage current, which is relevant for medical and lab device designs.

Can this model power a small 48V automation module where space is limited?

Yes, the supply is compact at 76.2 x 50.8 x 24.0 mm and weighs 0.11 kg, which helps in tight equipment layouts. Electrically, it provides constant-voltage 48V output up to 0.94A.

Is the RPS-45-48 appropriate for light-duty 48V loads rather than higher-current 48V systems?

Yes, this version is intended for lighter 48V loads because its output is limited to 0.94A and 45.1W. If the load current goes beyond 0.94A, a higher-capacity sibling would be the better fit.

How does the RPS-45-48 compare with other RPS-45 versions?

Within the RPS-45 family, the sibling outputs are 3.3V at 26.4W and 8A, 5V at 40W and 8A, 7.5V at 40.5W and 5.4A, 12V at 45.6W and 3.8A, 15V at 45W and 3A, and 24V at 45.6W and 1.9A. The RPS-45-48 is the 48V option and is rated for 45.1W at 0.94A.

Can the RPS-45-48 be used outdoors or in hot and cold industrial areas?

Its operating range is -30C to +70C, so it is built for a broad temperature window inside protected equipment. No IP rating is listed, so it is more appropriate for indoor enclosures than exposed outdoor installations.

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