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Mean Well

Mean Well HRPG-300-7.5 Power Supply 300W 7.5V 40A

built-in active PFCPF > 0.95high efficiency up to 90%no load power consumption <0.5W~0.75W1U low profile
SKU HRPG-300-7.5
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Overview

HRPG-300-7.5 is the 7.5V output model of this series: rated current 40A, rated power 300W, typical efficiency 86%.

Features

  • Universal AC input / Full range
  • Built-in active PFC function, PF>0.95
  • High efficiency up to 89%
  • Withstand 300VAC surge input for 5 seconds
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • Built-in constant current limiting circuit
  • 1U low profile 41mm
  • Built-in cooling fan ON-OFF control
  • Built-in DC OK signal
  • Built-in remote ON-OFF control
  • Standby 5V@0.3A
  • Built-in remote sense function
  • No load power consumption<0.5W (Note.6)
  • 5 years warranty

Specifications

HRPG-300-7.5Specifications from the official datasheet (2026-04-03 edition)

OUTPUT

DC VOLTAGE
7.5V
RATED CURRENT
40A
CURRENT RANGE
0 ~ 40A
RATED POWER
300W
RIPPLE & NOISE (max.)Note.2
100mVp-p
VOLTAGE ADJ. RANGE
6.8 ~ 9V
VOLTAGE TOLERANCENote.3
±2.0%
LINE REGULATION
±0.5%
LOAD REGULATION
±1.0%
SETUP, RISE TIME
1000ms, 50ms/230VAC 2500ms, 50ms/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.)
86%
AC CURRENT (Typ.)
3.5A/115VAC 1.8A/230VAC
INRUSH CURRENT (Typ.)
35A/115VAC 70A/230VAC
LEAKAGE CURRENT
<1.2mA / 240VAC

PROTECTION

OVERLOAD
105 ~ 135% rated output power Protection type : Constant current limiting, recovers automatically after fault condition is removed
OVER VOLTAGE
9.4 ~ 10.9V 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 turns on : 3.3 ~ 5.6V ; PSU turns off : 0 ~ 1V
REMOTE CONTROL
RC+ / RC-: 4 ~ 10V or open = power on ; 0 ~ 0.8V or short = power off
FAN CONTROL (Typ.)
Load 35±15% 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
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/ EN55035, BS EN/ EN61000-6-2, heavy industry level, EAC TP TC 020

OTHERS

MTBF
1339.6K hrs min. Telcordia SR-332 (Bellcore) ; 176.1K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
199*105*41mm (L*W*H)
PACKING
0.95Kg;15pcs/15.3Kg/0.83CUFT
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. No load power consumption<0.5W when RC- & RC+ (CN100 pin4,6) 0 ~ 0.8V or short.
  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

HRPG-300-7.5 Mechanical Specification
Mechanical Specification
HRPG-300-7.5 Block Diagram
Block Diagram
HRPG-300-7.5 Derating Curve
Derating Curve
HRPG-300-7.5 H R P G - 3 0 0 series
H R P G - 3 0 0 series
HRPG-300-7.5 2.DC-OK Signal
2.DC-OK Signal
HRPG-300-7.5 3.Remote Control
3.Remote Control

Downloads

FAQ

Can I use the HRPG-300-7.5 for 7.5V industrial control electronics?

This supply provides a constant-voltage 7.5V output rated for 300W and up to 40A, so it fits industrial electronics designed around a 7.5V DC rail. Its 85-264VAC input also supports use in facilities with a wide AC input range.

Is the HRPG-300-7.5 a good fit for centralized 7.5V embedded systems?

It can be used where several 7.5V embedded loads are powered from one source, provided the combined draw remains within 300W and 40A. The constant-voltage operating mode is appropriate for equipment expecting a regulated 7.5V supply.

Can this model power 7.5V automation devices that need higher current capacity?

Yes, this version is designed for 7.5V DC loads and can deliver up to 40A from a 300W output. That makes it relevant where a lower-voltage automation subsystem needs more current than smaller 7.5V models provide.

Is the HRPG-300-7.5 meant for indoor use only, or can it handle harsh temperatures?

The unit is specified for -40°C to +70°C operation, with output derating required at higher ambient temperatures according to the derating curve. However, no IP rating is listed in the product data, so the published specs do not identify it as an outdoor-rated enclosure.

What are the other HRPG-300 options around this 7.5V model?

The HRPG-300 range includes HRPG-300-3.3 at 198W, 3.3V, 60A; HRPG-300-5 at 300W, 5V, 60A; HRPG-300-7.5 at 300W, 7.5V, 40A; HRPG-300-12 at 324W, 12V, 27A; HRPG-300-15 at 330W, 15V, 22A; HRPG-300-24 at 336W, 24V, 14A; HRPG-300-36 at 324W, 36V, 9A; and HRPG-300-48 at 336W, 48V, 7A. This unit is the 7.5V, 40A version in that group.

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Mean Well HRPG-300-7.5 Power Supply 300W 7.5V 40A
Mean Well

Mean Well HRPG-300-7.5 Power Supply 300W 7.5V 40A

Log in to see price

HRPG-300-7.5 is the 7.5V output model of this series: rated current 40A, rated power 300W, typical efficiency 86%.

Features

  • Universal AC input / Full range
  • Built-in active PFC function, PF>0.95
  • High efficiency up to 89%
  • Withstand 300VAC surge input for 5 seconds
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • Built-in constant current limiting circuit
  • 1U low profile 41mm
  • Built-in cooling fan ON-OFF control
  • Built-in DC OK signal
  • Built-in remote ON-OFF control
  • Standby 5V@0.3A
  • Built-in remote sense function
  • No load power consumption<0.5W (Note.6)
  • 5 years warranty
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