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Mean Well

Mean Well HRP-450-24 Power Supply 451.2W 24V 18.8A

built-in active PFChigh efficiency up to 90%no load power consumption <0.5W~0.75W
SKU HRP-450-24
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Select model — 7 in this family

HRP-450-24
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Overview

HRP-450-24 is the 24V output model of this series: rated current 18.8A, rated power 451.2W, typical efficiency 88%.

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 sense function
  • 5 years warranty

Specifications

HRP-450-24Specifications from the official datasheet (2026-04-03 edition)

OUTPUT

DC VOLTAGE
24V
RATED CURRENT
18.8A
CURRENT RANGE
0 ~ 18.8A
RATED POWER
451.2W
RIPPLE & NOISE (max.)Note.2
150mVp-p
VOLTAGE ADJ. RANGE
21.6 ~ 28.8V
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.)
88%
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
30 ~ 34.8V 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

DC OK SIGNAL
PSU turn on : 3.3 ~ 5.6V ; PSU turn off : 0 ~ 1V
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, AS/NZS62368.1, 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
1323.6K hrs min. Telcordia SR-332 (Bellcore) ; 139.9K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
218*105*41mm (L*W*H)
PACKING
1.19Kg; 12pcs/15.3Kg/0.82CUFT
Test conditions and notes7
  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. 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

HRP-450-24 Mechanical Specification
Mechanical Specification
HRP-450-24 Block Diagram
Block Diagram
HRP-450-24 Derating Curve
Derating Curve
HRP-450-24 Function Manual
Function Manual

Downloads

FAQ

Can I use the HRP-450-24 for a 24V PLC or factory automation cabinet?

Yes, this model provides constant 24V output up to 18.8A and 451.2W, which fits many 24V automation and control loads that need a fixed DC supply. It also accepts 85-264VAC input, which is useful where incoming AC varies.

Is the HRP-450-24 suitable for 24V industrial sensors, relays, and control peripherals?

It can be used when those 24V loads need constant-voltage power and the total demand stays within 18.8A and 451.2W. The supply is designed for AC input from 85VAC to 264VAC, making it suitable for a wide range of mains-fed systems.

Can this model power a 24V embedded or industrial computing platform?

Yes, if the platform requires a 24V constant-voltage source and remains within the supply's 451.2W and 18.8A limits. The 218.0 x 105.0 x 41.0 mm enclosure can also matter for compact panel or rack integration.

Is the HRP-450-24 rated for outdoor use or wide-temperature operation?

The operating temperature is specified at -40°C to +70°C, with load derating at higher ambient temperatures per the derating curve. The product data provided here does not list an IP rating, so the specs do not confirm direct outdoor or water-exposed use.

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Mean Well HRP-450-24 Power Supply 451.2W 24V 18.8A
Mean Well

Mean Well HRP-450-24 Power Supply 451.2W 24V 18.8A

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HRP-450-24 is the 24V output model of this series: rated current 18.8A, rated power 451.2W, typical efficiency 88%.

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 sense function
  • 5 years warranty

Model

  • 75W 24V
  • 100W 24V
  • 150W 24V
  • 200W 24V
  • 300W 24V
  • 450W 24V
  • 600W 24V
View product

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