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Mean Well

Mean Well HEP-480-36A Power Supply 320.4W 36V 13.3A

fanless designhigh efficiency up to 96%rugged metal case with IP65 design(IP68 option available)withstand 10G vibrationsuitable for harsh environment
SKU HEP-480-36A
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Select model — 14 in this family

HEP-480-36A
Available to order
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Overview

HEP-480-36A is the 36V output model of this series: rated current 13.3A, rated power 478.8W, typical efficiency 95%.

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-480-36ASpecifications from the official datasheet (2025-10-10 edition)

OUTPUT

DC VOLTAGE
36V
RATED CURRENT
13.3A
RATED POWER
478.8W
RIPPLE & NOISE (max.)Note.2
250mVp-p
VOLTAGE ADJ. RANGENote.5
30.6 ~ 37.8V
CURRENT ADJ. RANGE
6.6 ~ 13.3A
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.)
95%
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
40 ~ 50V 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-480-36A Block Diagram
Block Diagram
HEP-480-36A Derating Curve
Derating Curve
HEP-480-36A Mechanical Specification
Mechanical Specification
HEP-480-36A ※Blank-Type (optional model)
※Blank-Type (optional model)
HEP-480-36A 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-480-36A for 36V industrial LED lighting systems?

Yes, if the lighting system is designed for constant-voltage 36V DC input. This model provides 36V output at up to 13.3A with 478.8W total power, so it fits higher-load 36V lighting assemblies rather than small low-power runs.

Is the HEP-480-36A suitable for 36V automation or control cabinets?

It can be a fit for automation equipment that requires a regulated 36V DC bus and stays within 13.3A. The wide 90-264VAC input (277VAC operational) also makes it practical where the incoming AC supply may vary across industrial sites.

Can this power supply support embedded or OEM equipment that runs on 36V DC?

Yes, for embedded systems or OEM assemblies that need constant-voltage 36V power and draw no more than 478.8W. The IP65 rating and 95% typical efficiency are useful where low-maintenance and sealed power conversion matter.

Is the HEP-480-36A appropriate for harsh indoor or outdoor environments?

It is built for demanding conditions with an IP65 water-resistant enclosure and an operating range of -55°C to +65°C (with load derating at higher temperatures). Its 10G vibration resistance makes it more suitable for exposed industrial locations than standard open-frame supplies.

How does the HEP-480-36A compare with other HEP-480 models?

Within the HEP-480 range, the 24V models are 480W at 20A, the 36V models are 478.8W at 13.3A, the 48V models are 480W at 10A, and the 54V models are 480.6W at 8.9A. The main selection difference is output voltage and corresponding current, while all are high-power constant-voltage units in the same series class.

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Mean Well HEP-480-36A Power Supply 320.4W 36V
Mean Well

Mean Well HEP-480-36A Power Supply 320.4W 36V 13.3A

Log in to see price

HEP-480-36A is the 36V output model of this series: rated current 13.3A, rated power 478.8W, typical efficiency 95%.

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 36V
  • 100W 36V Adjustable
  • 150W 36V
  • 150W 36V Adjustable
  • 185W 36V
  • 185W 36V Adjustable
  • 240W 36V
  • 240W 36V Adjustable
  • 320W 36V
  • 320W 36V Adjustable
  • 480W 36V
  • 480W 36V Adjustable
  • 600W 36V
  • 600W 36V Adjustable
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