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Mean Well

Mean Well HRPG-450-12 Power Supply 450W 12V 37.5A

built-in active PFCPF > 0.95high efficiency up to 90%no load power consumption <0.5W~0.75W1U low profile
SKU HRPG-450-12
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Overview

HRPG-450-12 is the 12V output model of this series: rated current 37.5A, rated power 450W, 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 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-450-12Specifications from the official datasheet (2025-12-05 edition)

OUTPUT

DC VOLTAGE
12V
RATED CURRENT
37.5A
CURRENT RANGE
0 ~ 37.5A
RATED POWER
450W
RIPPLE & NOISE (max.)Note.2
120mVp-p
VOLTAGE ADJ. RANGE
10.2 ~ 13.8V
VOLTAGE TOLERANCENote.3
±1.0%
LINE REGULATION
±0.3%
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
14.4 ~ 16.8V 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

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-450-12 Mechanical Specification
Mechanical Specification
HRPG-450-12 Block Diagram
Block Diagram
HRPG-450-12 Derating Curve
Derating Curve
HRPG-450-12 Function Manual
Function Manual

Downloads

FAQ

Can I use the HRPG-450-12 for a 12V automation control panel?

This model is a constant-voltage 12V supply rated for 450W and up to 37.5A, so it fits 12V automation panels with higher aggregate DC demand. The 85-264VAC input range also supports use across common industrial AC supplies.

Is the HRPG-450-12 suitable for 12V industrial electronics that need more headroom than a 300W supply?

Yes, it provides 450W at 12V with 37.5A available, which is more capacity than a 300W-class supply. It is intended for regulated 12V DC loads that require a constant-voltage source.

Can this 12V model power multiple embedded or control devices from one supply?

It can support a shared 12V DC bus when the combined load stays within 450W and 37.5A. That makes it relevant for grouped 12V embedded or control equipment that is designed for constant-voltage input.

Does the HRPG-450-12 work in demanding temperature conditions or outdoor locations?

The published operating temperature is -40°C to +70°C, with output derating at higher ambient temperatures per the derating curve. No IP rating is listed, so the available specs do not describe this unit as outdoor-rated or weather-exposed equipment.

How does the HRPG-450-12 compare with the other HRPG-450 versions?

Within the HRPG-450 family, the listed 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 model is the 12V, 37.5A option in that set.

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Mean Well HRPG-450-12 Power Supply 450W 12V 37.5A
Mean Well

Mean Well HRPG-450-12 Power Supply 450W 12V 37.5A

Log in to see price

HRPG-450-12 is the 12V output model of this series: rated current 37.5A, rated power 450W, 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 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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