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Mean Well

Mean Well RS-150-48 Power Supply 150W 48V 3.3A

4.8 (14 reviews)
miniature sizeeconomicalwithstand 5G vibration and 70Β°C operation
SKU RS-150-48
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Select model β€” 7 in this family

RS-150-48
In stock
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Overview

RS-150-48 is the 48V output model of this series: rated current 3.3A, rated power 158.4W, typical efficiency 86%.

Features

  • Protections: Short circuit / Overload / Over voltage
  • Cooling by free air convection
  • LED indicator for power on
  • 100% full load burn-in test
  • All using 105℃ long life electrolytic capacitors
  • Withstand 300VAC surge input for 5 second
  • High operating temperature up to 70℃
  • Withstand 5G vibration test
  • High efficiency, long life and high reliability
  • 3 years warranty

Specifications

RS-150-48Specifications from the official datasheet (2024-11-22 edition)

OUTPUT

DC VOLTAGE
48V
RATED CURRENT
3.3A
CURRENT RANGE
0 ~ 3.3A
RATED POWER
158.4W
RIPPLE & NOISE (max.)Note.2
200mVp-p
VOLTAGE ADJ. RANGE
45.6 ~ 52.8V
VOLTAGE TOLERANCENote.3
Β±1.0%
LINE REGULATIONNote.4
Β±0.5%
LOAD REGULATIONNote.5
Β±0.5%
SETUP, RISE TIME
800ms, 20ms/230VAC 1200ms, 30ms/115VAC at full load
HOLD UP TIME (Typ.)
28ms/230VAC 20ms/115VAC at full load

INPUT

VOLTAGE RANGE
88 ~ 132VAC / 176 ~ 264VAC selected by switch 248 ~ 373VDC(Withstand 300VAC surge for 5sec. Without damage)
FREQUENCY RANGE
47 ~ 63Hz
EFFICIENCY(Typ.)
86%
AC CURRENT (Typ.)
3A/115VAC 2A/230VAC
INRUSH CURRENT (Typ.)
COLD START 40A/230VAC
LEAKAGE CURRENT
<2mA / 240VAC

PROTECTION

OVERLOADNote.8
110 ~ 150% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE
55.2 ~ 64.8V Protection type : Hiccup mode, recovers automatically after fault condition is removed

ENVIRONMENT

WORKING TEMP.
-25 ~ +70℃ (Refer to "Derating Curve")
WORKING HUMIDITY
20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-40 ~ +85℃, 10 ~ 95% RH
TEMP. COEFFICIENT
Β±0.03%/℃ (0 ~ 50℃)
VIBRATION
10 ~ 500Hz, 5G 10min./1cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDS
UL62368-1, TUV BS EN/EN62368-1, AS/NZS 62368.1, EAC TP TC 004 approved
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
Compliance to BS EN/EN55032 (CISPR32) Class B, BS EN/EN61000-3-2(Note.9),-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/EN61000-6-2 (BS EN/EN50082-2), heavy industry level, EAC TP TC 020

OTHERS

MTBF
3044.1K hrs min. Telcordia SR-332 (Bellcore) ; 437.3K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
199*98*38mm (L*W*H)
PACKING
0.7Kg; 20pcs/14Kg/0.85CUFT
Test conditions and notes10
  1. 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
  2. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1ΞΌF & 47ΞΌF parallel capacitor.
  3. 3. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 4. Line regulation is measured from low line to high line at rated load.
  5. 5. Load regulation is measured from 0% to 100% rated load.
  6. 6. 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 β€œEMI testing of component power supplies.” (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )
  7. 7. Length of set up time is measured at cold first start. Turning ON/OFF the power supply very quickly may lead to increase of the set up time.
  8. 8. Extra consideration should be taken when selecting output wiring for 3.3V and 5V models. This is to prevent the protection modes for overload and short circuit from becoming constant power.
  9. 9. Testing harmonic current at 80% load.
  10. 10.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).

Technical drawings

RS-150-48 Mechanical Specification
Mechanical Specification
RS-150-48 Block Diagram
Block Diagram
RS-150-48 Derating Curve
Derating Curve

Downloads

FAQ

Can I use the RS-150-48 for a 48V automation or industrial control load?

Yes, if the load requires constant-voltage 48V and draws no more than 3.3A. This model provides up to 158.4W, which suits 48V equipment within that range.

Is the RS-150-48 appropriate for embedded or telecom-style 48V DC systems?

It is designed for constant-voltage 48V output with 3.3A available. That makes it a fit for 48V DC systems whose steady demand stays at or below 158.4W.

Can this power supply run a 48V device that needs around 3A?

A 48V load near 3A is within the 3.3A output current rating of this model. The available output power is 158.4W, so both the voltage and current class align with that type of load.

Would the RS-150-48 make sense for a centralized 48V control panel supply?

It can serve as a centralized 48V source when the total connected load remains within 3.3A and 158.4W. The 88-264VAC input is also useful for systems deployed across different AC input conditions.

Is the RS-150-48 suitable for outdoor or harsh-temperature use?

The temperature rating is -25Β°C to +70Β°C, and the listed features include 70Β°C operation plus 5G vibration resistance. The provided specs do not state an IP rating, so outdoor exposure cannot be confirmed from this data alone.

How does the RS-150-48 compare with the other RS-150 output options?

The RS-150 series variants listed are 12V at 12.5A and 150W, 15V at 10A and 150W, 24V at 6.5A and 156W, 3.3V at 30A and 99W, 48V at 3.3A and 158.4W, and 5V at 26A and 130W. The 48V version has the highest listed output voltage and the lowest current among the RS-150 models shown.

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Customer reviews

4.8 Reviews verified for authenticity
5 β˜… (12)
4 β˜… (1)
3 β˜… (1)
2 β˜… (0)
1 β˜… (0)

Reviewed by 14 customers across the RS series

  1. Exactly as specced

    By Daniel R.|2026-06-18βœ“ Verified Buyer
    Model: RS-15-24Quantity: 4

    Drop-in replacement, ran cool under full load on our DIN rail. Shipped same day.

  2. Workhorse

    By Maria K.|2026-05-28βœ“ Verified Buyer
    Model: RS-50-24Quantity: 12

    Bought a dozen for a control panel build β€” every one perfect.

  3. Solid little supply

    By Greg T.|2026-04-30βœ“ Verified Buyer
    Model: RS-100-24Quantity: 2

    Does the job. Wish the terminals were a touch bigger.

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Mean Well RS-150-48 Power Supply 150W 48V 3.3A
Mean Well

Mean Well RS-150-48 Power Supply 150W 48V 3.3A

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RS-150-48 is the 48V output model of this series: rated current 3.3A, rated power 158.4W, typical efficiency 86%.

Features

  • Protections: Short circuit / Overload / Over voltage
  • Cooling by free air convection
  • LED indicator for power on
  • 100% full load burn-in test
  • All using 105℃ long life electrolytic capacitors
  • Withstand 300VAC surge input for 5 second
  • High operating temperature up to 70℃
  • Withstand 5G vibration test
  • High efficiency, long life and high reliability
  • 3 years warranty

Model

  • 15W 48V
  • 100W 48V
  • 150W 48V
  • 25W 48V
  • 35W 48V
  • 50W 48V
  • 75W 48V
View product

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