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Mean Well

Mean Well HEP-480-48 Power Supply 321.6W 48V 10A

fanless designhigh efficiency up to 96%rugged metal case with IP65 design(IP68 option available)withstand 10G vibrationsuitable for harsh environment
SKU HEP-480-48
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Select model — 15 in this family

HEP-480-48
Available to order
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Overview

HEP-480-48 is the 48V output model of this series: rated current 10A, rated power 480W, typical efficiency 94.5%.

HEP-480 is a 480W industrial AC/DC power supply featuring the outstanding capability to operate under highly humid, dusty, oily, and high-vibration harsh environment. The entire series is housed with the aluminum case and fully potted with heat-conducted silicone. Thanks to state-of-the-art design, the working efficiency is up to 95%, enabling HEP-480 perfectly work between -55℃ and +65℃ under free air convection.

Features

  • Universal AC input / Full range
  • Built-in active PFC function
  • High efficiency up to 95%
  • Fanless design, cooling by free air convection
  • -55~+65℃ wide operating range
  • Aluminum case and filling with heat-conducted silicone
  • IP65 design, optional IP68 rated model available
  • Meet 6KV surge immunity level
  • Withstand 10G vibration test
  • Operating altitude up to 5000 meters (Note.7)
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • 6 years warranty

Specifications

HEP-480-48Specifications from the official datasheet (2025-10-10 edition)

OUTPUT

DC VOLTAGE
48V
RATED CURRENT
10A
RATED POWER
480W
RIPPLE & NOISE (max.)Note.2
250mVp-p
VOLTAGE ADJ. RANGENote.5
40.8 ~ 50.4V
CURRENT ADJ. RANGE
5 ~ 10A
VOLTAGE TOLERANCENote.3
±1.0%
LINE REGULATION
±0.5%
LOAD REGULATION
±0.5%
SETUP, RISE TIMENote.4
500ms, 80ms 115VAC/230VAC
HOLD UP TIME (Typ.)
16ms 115VAC/230VAC

INPUT

VOLTAGE RANGENote.5
90~264VAC (277VAC operational) 128~370VDC(390VDC operational)
FREQUENCY RANGE
47 ~ 63Hz
POWER FACTOR (Typ.)
PF≧0.98/115VAC, PF≧0.97/230VAC, PF≧0.95/277VAC at full load
EFFICIENCY (Typ.)
94.5%
AC CURRENT (Typ.)
5A / 115VAC 2.45A / 230VAC 2A/277VAC
INRUSH CURRENT(Typ.)
COLD START 35A at 230VAC
LEAKAGE CURRENT
<0.75mA / 277VAC

PROTECTION

OVER CURRENT
105 ~ 125% Constant current limiting, recovers automatically after fault condition is removed
SHORT CIRCUIT
Constant current limiting, recovers automatically after fault condition is removed
OVER VOLTAGE
53 ~ 63V Shut down output voltage, re-power on to recover
OVER TEMPERATURE
Shut down output voltage, re-power on to recover

ENVIRONMENT

WORKING TEMP.
-55 ~ +65℃ (Refer to "Derating Curve")
WORKING HUMIDITY
20 ~ 95% RH non-condensing
STORAGE TEMP., HUMIDITY
-60 ~ +80℃, 10 ~ 95% RH non-condensing
TEMP. COEFFICIENT
±0.02%/℃ (0 ~ 60℃)
VIBRATION
20 ~ 500Hz, 10G 12min./1cycle, period for 72min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDSNote.7
UL62368-1,IEC62368-1, IP65 (or IP68 for HEP-480 Blank-Type), EAC TP TC 004 approved ;Design refer to BS EN/EN62368-1
WITHSTAND VOLTAGE
I/P-O/P:3.75KVAC I/P-FG:2KVAC O/P-FG:1.5KVAC
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, light industry level (surge 6KV), EAC TP TC 020

OTHERS

MTBF
1036.8K hrs min. Telcordia SR-332 (Bellcore) ; 89.8Khrs min. MIL-HDBK-217F (25℃)
DIMENSION
262*125*43.8mm (L*W*H)
PACKING
2.8Kg;4pcs/11.5Kg/0.55CUFT
Test conditions and notes9
  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 0.1uf & 47uf parallel capacitor.
  3. 3. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 4. Length of set up time is measured at cold first start. Turning ON/OFF the power supply may lead to increase of the setup time.
  5. 5. Derating may be needed under low input voltages. Please refer to the “STATIC CHARACTERISTICS” for more details.
  6. 6. The power supply shall be regarded as one component of the final system. The EMC performance will be affected by the complete system installation and/or configuration, the final system manufacturers must re-verify overall EMC directive with the complete installation and/or configuration. (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf)
  7. 7. The water protection level test for the IP68 rating is performed 1000mm below the surface of the water for 1 month.
  8. 8. Please refer to the warranty statement on MEAN WELL's website at http://www.meanwell.com
  9. 9. 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

HEP-480-48 Block Diagram
Block Diagram
HEP-480-48 Derating Curve
Derating Curve
HEP-480-48 Mechanical Specification
Mechanical Specification
HEP-480-48 ※Blank-Type (optional model)
※Blank-Type (optional model)
HEP-480-48 For Others
For Others

Typical applications

  • Outdoor telecommunication equipment
  • Outdoor electronic signage and billboard
  • Petroleum plant or mine shaft facility

Downloads

FAQ

Can I use the HEP-480-48 for 48V telecom or network power applications?

Yes, if the equipment is designed for constant-voltage 48V DC input. This unit provides 48V at up to 10A with 480W total output, which suits higher-demand 48V loads better than low-current supplies.

Is the HEP-480-48 a good match for 48V industrial automation equipment?

It can be used for automation systems that require a regulated 48V DC source and stay within 10A. The 90-264VAC input range (277VAC operational) is also useful for installations where the available AC supply is not tightly standardized.

Can this model power 48V DC motors, actuators, or embedded control assemblies?

It is suitable for 48V DC equipment that expects constant-voltage input and has a total load at or below 480W. Buyers should match the equipment's required 48V input and ensure the running current does not exceed 10A.

Is the HEP-480-48 suitable for outdoor or wet industrial locations?

This version is listed at IP68 and operates from -55°C to +65°C (with load derating at higher temperatures), so it is intended for harsher environmental exposure than a basic indoor-only supply. Its 10G vibration resistance also supports use in difficult field conditions.

What are the main differences between the HEP-480-24, HEP-480-36, HEP-480-48, and HEP-480-54?

The HEP-480-24 is 480W at 24V and 20A, the HEP-480-36 is 478.8W at 36V and 13.3A, the HEP-480-48 is 480W at 48V and 10A, and the HEP-480-54 is 480.6W at 54V and 8.9A. The practical difference is the DC voltage level each unit provides and the current available at that voltage.

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Mean Well HEP-480-48 Power Supply 321.6W 48V
Mean Well

Mean Well HEP-480-48 Power Supply 321.6W 48V 10A

Log in to see price

HEP-480-48 is the 48V output model of this series: rated current 10A, rated power 480W, typical efficiency 94.5%.

HEP-480 is a 480W industrial AC/DC power supply featuring the outstanding capability to operate under highly humid, dusty, oily, and high-vibration harsh environment. The entire series is housed with the aluminum case and fully potted with heat-conducted silicone. Thanks to state-of-the-art design, the working efficiency is up to 95%, enabling HEP-480 perfectly work between -55℃ and +65℃ under free air convection.

Features

  • Universal AC input / Full range
  • Built-in active PFC function
  • High efficiency up to 95%
  • Fanless design, cooling by free air convection
  • -55~+65℃ wide operating range
  • Aluminum case and filling with heat-conducted silicone
  • IP65 design, optional IP68 rated model available
  • Meet 6KV surge immunity level
  • Withstand 10G vibration test
  • Operating altitude up to 5000 meters (Note.7)
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • 6 years warranty

Typical applications

  • Outdoor telecommunication equipment
  • Outdoor electronic signage and billboard
  • Petroleum plant or mine shaft facility

Model

  • 100W 48V
  • 100W 48V Adjustable
  • 1000W 48V
  • 150W 48V
  • 150W 48V Adjustable
  • 185W 48V
  • 185W 48V Adjustable
  • 240W 48V
  • 240W 48V Adjustable
  • 320W 48V
  • 320W 48V Adjustable
  • 480W 48V
  • 480W 48V Adjustable
  • 600W 48V
  • 600W 48V Adjustable
View product

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