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Mean Well

Mean Well HRPG-450-48 Power Supply 456W 48V 9.5A

built-in active PFCPF > 0.95high efficiency up to 90%no load power consumption <0.5W~0.75W1U low profile
SKU HRPG-450-48
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Overview

HRPG-450-48 is the 48V output model of this series: rated current 9.5A, rated power 456W, typical efficiency 89.5%.

Features

  • Universal AC input / Full range
  • Built-in active PFC function, PF>0.95
  • High efficiency up to 89.5%
  • Withstand 300VAC surge input for 5 seconds
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • Built-in constant current limiting circuit
  • Built-in cooling Fan ON-OFF control
  • Built-in DC OK signal
  • Built-in remote ON-OFF control
  • Stand by 5V@0.3A
  • Built-in remote sense function
  • No load power consumption<0.5W (Note.7)
  • 5 years warranty

Specifications

HRPG-450-48Specifications from the official datasheet (2025-12-05 edition)

OUTPUT

DC VOLTAGE
48V
RATED CURRENT
9.5A
CURRENT RANGE
0 ~ 9.5A
RATED POWER
456W
RIPPLE & NOISE (max.)Note.2
240mVp-p
VOLTAGE ADJ. RANGE
40.8 ~ 55.2V
VOLTAGE TOLERANCENote.3
±1.0%
LINE REGULATION
±0.2%
LOAD REGULATION
±0.5%
SETUP, RISE TIME
1800ms, 100ms/230VAC 3600ms, 100ms/115VAC at full load
HOLD UP TIME (Typ.)
16ms/230VAC 16ms/115VAC at full load

INPUT

VOLTAGE RANGENote.5
85 ~ 264VAC 120 ~ 370VDC
FREQUENCY RANGE
47 ~ 63Hz
POWER FACTOR (Typ.)
PF>0.95/230VAC PF>0.99/115VAC at full load
EFFICIENCY (Typ.)
89.5%
AC CURRENT (Typ.)
5A/115VAC 2.4A/230VAC
INRUSH CURRENT (Typ.)
35A/115VAC 70A/230VAC
LEAKAGE CURRENT
<1.5mA / 240VAC

PROTECTION

OVERLOAD
105 ~ 135% rated output power Protection type : Constant current limiting, recovers automatically after fault condition is removed
OVER VOLTAGE
57.6 ~ 67.2V Protection type : Shut down o/p voltage, re-power on to recover
OVER TEMPERATURE
Shut down o/p voltage, recovers automatically after temperature goes down

FUNCTION

5V STANDBY
5VSB : 5V@0.3A ; tolerance±5%, ripple : 50mVp-p(max.)
DC OK SIGNAL
PSU turn on : 3.3 ~ 5.6V ; PSU turn off : 0 ~ 1V
REMOTE CONTROL
RC+ / RC-: 4 ~ 10V or open = power on ; 0 ~ 0.8V or short = power off
FAN CONTROL (Typ.)
Load 20±10% or RTH2≧50℃ Fan on

ENVIRONMENT

WORKING TEMP.
-40 ~ +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, 5G 10min./1cycle, 60min. each along X, Y, Z axes

SAFETY & EMC (Note 4)

SAFETY STANDARDS
UL62368-1, TUV BS EN/EN62368-1, 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,-3, EAC TP TC 020
EMC IMMUNITY
Compliance to BS EN/ EN61000-4-2,3,4,5,6,8,11, BS EN/ EN55024, BS EN/ EN61000-6-2, heavy industry level, EAC TP TC 020

OTHERS

MTBF
1180.3K hrs min. Telcordia SR-332 (Bellcore) ; 130.5K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
218*105*41mm (L*W*H)
PACKING
1.19Kg; 12pcs/15.3Kg/0.81CUFT
Test conditions and notes8
  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 0.1μF & 47μF parallel capacitor.
  3. 3. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 4. 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 )
  5. 5. Derating may be needed under low input voltages. Please check the derating curve for more details.
  6. 6. Length of set up time is measured at first cold start. Turning ON/OFF the power supply may lead to increase of the set up time.
  7. 7. No load power consumption<0.5W when RC- & RC+ (CN100 pin1,2) 0 ~ 0.8V or short.
  8. 8. 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

HRPG-450-48 Mechanical Specification
Mechanical Specification
HRPG-450-48 Block Diagram
Block Diagram
HRPG-450-48 Derating Curve
Derating Curve
HRPG-450-48 Function Manual
Function Manual

Downloads

FAQ

Can I use the HRPG-450-48 for 48V telecom or industrial networking equipment?

It can be a fit for equipment designed for a constant 48V DC input, with available output up to 9.5A and 456W. That makes it relevant for telecom, industrial networking, or control hardware built around a 48V bus.

Is the HRPG-450-48 suitable for 48V automation controllers and distributed control systems?

Yes, when the controller or distributed system is specified for 48V constant voltage power and the total load stays within 9.5A. The unit is intended for fixed-voltage DC applications rather than products needing 24V, 36V, or lower-voltage rails.

Would this model work in a 48V rack or cabinet where space is tight?

It is well suited to compact rack or cabinet layouts because the enclosure is 218 × 105 × 41 mm, only 41 mm high. At 1.19 kg, it also stays relatively manageable for dense equipment builds.

Is the HRPG-450-48 rated for outdoor environments?

The listed operating range is -40°C to +70°C, with output derating at higher ambient temperatures per the derating curve, so the temperature spec supports demanding indoor industrial conditions. However, no IP rating is provided in the specs, so exposed outdoor use should not be assumed from this listing alone.

How does the HRPG-450-48 compare with other HRPG-450 outputs?

In the HRPG-450 range, the models are HRPG-450-3.3 at 297W, 3.3V, 90A; HRPG-450-5 at 450W, 5V, 90A; HRPG-450-7.5 at 450W, 7.5V, 60A; HRPG-450-12 at 450W, 12V, 37.5A; HRPG-450-15 at 450W, 15V, 30A; HRPG-450-24 at 451.2W, 24V, 18.8A; HRPG-450-36 at 450W, 36V, 12.5A; and HRPG-450-48 at 456W, 48V, 9.5A. This 48V version provides the highest nominal output voltage in the 450 series while delivering 9.5A.

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Mean Well HRPG-450-48 Power Supply 456W 48V 9.5A
Mean Well

Mean Well HRPG-450-48 Power Supply 456W 48V 9.5A

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HRPG-450-48 is the 48V output model of this series: rated current 9.5A, rated power 456W, typical efficiency 89.5%.

Features

  • Universal AC input / Full range
  • Built-in active PFC function, PF>0.95
  • High efficiency up to 89.5%
  • Withstand 300VAC surge input for 5 seconds
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • Built-in constant current limiting circuit
  • Built-in cooling Fan ON-OFF control
  • Built-in DC OK signal
  • Built-in remote ON-OFF control
  • Stand by 5V@0.3A
  • Built-in remote sense function
  • No load power consumption<0.5W (Note.7)
  • 5 years warranty
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