Image shown is a representation only. Exact specifications should be obtained from the product datasheet.

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

built-in active PFChigh efficiency up to 90%no load power consumption <0.5W~0.75W

SKU HRP-300-7.5

Log in to see price Trade pricing & online ordering for account holders

Select model — 7 in this family

HRP-300-7.5

HRP-75-7.5 75W 7.5V Backorder

HRP-100-7.5 100W 7.5V Backorder

HRP-150-7.5 150W 7.5V Backorder

HRP-200-7.5 200W 7.5V Backorder

HRP-300-7.5 300W 7.5V Low stock

HRP-450-7.5 450W 7.5V Backorder

HRP-600-7.5 600W 7.5V In stock

Product variants

In stock

Overview

HRP-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 sense function
5 years warranty

Specifications

HRP-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 TOLERANCE^Note.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 RANGE^Note.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

DC OK SIGNAL: PSU turns on : 3.3 ~ 5.6V ; PSU turns off : 0 ~ 1V
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, AS/NZS 62368.1 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: 1487.1K hrs min. Telcordia SR-332 (Bellcore) ; 200.4K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 199*105*41mm (L*W*H)
PACKING: 0.95Kg;15pcs/15.3Kg/0.83CUFT

Test conditions and notes6

1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
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. Tolerance : includes set up tolerance, line regulation and load regulation.
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. Derating may be needed under low input voltages. Please check the derating curve for more details.
6. 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-300-7.5 Mechanical Specification — Mechanical Specification

HRP-300-7.5 Block Diagram — Block Diagram

HRP-300-7.5 Derating Curve — Derating Curve

Downloads

Certificates4

EMC Certificate (HRP-300)(EN) PDF Download

UL Certificate(HRP-300)(EN) PDF Download

CB Certificate (HRP-300)(EN) PDF Download

TUV Certificate(HRP-300)(EN) PDF Download

Test reports1

Test Report(HRP-300-7.5)(EN) PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the HRP-300-7.5 for 7.5V industrial electronics or legacy control equipment?

Yes, if the equipment specifically requires a constant 7.5V DC source. This model provides 300W at 7.5V with up to 40A, which suits higher-current 7.5V loads used in industrial or embedded systems.

Is this power supply appropriate for 7.5V bench testing or embedded development fixtures?

It can be appropriate when the DUT or fixture is designed for 7.5V constant voltage input and the total draw stays within 300W and 40A. The 85-264VAC input also helps when the same setup may be used across different AC input environments.

Can the HRP-300-7.5 support multiple 7.5V loads in one automation enclosure?

It is designed for constant voltage operation at 7.5V and can supply up to 40A total. That makes it relevant for centralized 7.5V distribution in equipment where several loads share the same 7.5V bus and remain within the 300W rating.

Is the HRP-300-7.5 intended for outdoor use or only controlled environments?

The temperature spec is -40°C to +70°C, with output derating at higher ambient temperatures per the derating curve. The provided specs do not include an IP rating, so outdoor suitability is not confirmed by this data alone.

What are the main differences between the HRP-300-7.5 and the other HRP-300 versions?

The HRP-300 range includes 3.3V at 198W and 60A, 5V at 300W and 60A, 7.5V at 300W and 40A, 12V at 324W and 27A, 15V at 330W and 22A, 24V at 336W and 14A, 36V at 324W and 9A, and 48V at 336W and 7A. This model is the 7.5V version, so its distinguishing specs are 300W and 40A at 7.5V.

Payment & Security

Payment methods

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Model	Power	Voltage	Current
Mean Well HRP-300-5 Power Supply 300W 5V 60A	300W	5V	60A	View
Mean Well HRP-300-48 Power Supply 336W 48V 7A	336W	48V	7A	View
Mean Well HRP-300-36 Power Supply 324W 36V 9A	324W	36V	9A	View

Please log in to write a review.

{ "id":8343881974059, "variants" :[{ "context":"default", "variant_id": 45320964964651, "sku":"HRP-300-7.5", "inventory_qty" : 3, "customer" :false, "custom_html" :"\u003ca class=\"text-current logged-out-price logged-out\" href=\"https:\/\/wellforces.co.nz\/customer_authentication\/redirect?locale=en\u0026region_country=NZ\"\u003e\n \u003cspan \u003ePlease \u003c\/span\u003e \u003cspan class=\"login-text\"\u003eLogin\u003c\/span\u003e \u003cspan\u003e for Pricing\u003c\/span\u003e\n \u003c\/a\u003e", "volume_html" :"\u003cvolume-pricing class=\"parent-display inside_product_form\" id=\"volume-pricing-main\" \u003e\u003c\/volume-pricing\u003e" } ] }

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

Select model — 7 in this family

Overview

Features

Specifications

OUTPUT

INPUT

PROTECTION

FUNCTION

ENVIRONMENT

SAFETY & EMC (Note 4)

OTHERS

Technical drawings

Downloads

Certificates4

Test reports1

Catalogues1

FAQ

Payment & Security

Other HRP-300 Models

Write a review

Your cart

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

Features

Company Information

Services and Support

Choose options