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Mean Well HEP-320-24 Power Supply 320.16W 24V 13.34A

fanless designhigh efficiency up to 96%rugged metal case with IP65 design(IP68 option available)withstand 10G vibrationsuitable for harsh environment
SKU HEP-320-24
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Select model — 15 in this family

HEP-320-24
Available to order
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Overview

HEP-320-24 is the 24V output model of this series: rated current 13.34A, rated power 320.16W, typical efficiency 94%.

HEP-320 is a 320W industrial AC/DC power supply featuring the outstanding capability to operate under a harsh environment with high dust density, humidity, vibration and altitude. The entire series is housed with a robust 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-320, with a fanless design, perfectly work between -55℃ and +70℃ 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~+70℃ 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.8)
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • 6 years warranty

Specifications

HEP-320-24Specifications from the official datasheet (2025-10-10 edition)

OUTPUT

DC VOLTAGE
24V
RATED CURRENT
13.34A
RATED POWER
320.16W
RIPPLE & NOISE (max.)Note.2
150mVp-p
VOLTAGE ADJ. RANGENote.5
21 ~ 26V
CURRENT ADJ. RANGENote.5
6.67 ~ 13.34A
VOLTAGE TOLERANCENote.3
±1.0%
LINE REGULATION
±0.5%
LOAD REGULATION
±0.5%
SETUP, RISE TIMENote.6
2500ms,80ms/115VAC 600ms,80ms/230VAC at full load
HOLD UP TIME (Typ.)
15ms at full load 230VAC /115VAC

INPUT

VOLTAGE RANGENote.4
90~264VAC (277VAC operational) 128~370VDC(390VDC operational)
FREQUENCY RANGE
47 ~ 63Hz
POWER FACTOR (Typ.)
PF>0.98/115VAC, PF>0.95/230VAC, PF>0.94/277VAC at full load
EFFICIENCY (Typ.)
94%
AC CURRENT (Typ.)
3.5A / 115VAC 1.65A / 230VAC 1.45A / 277VAC
INRUSH CURRENT(Typ.)
COLD START 70A at 230VAC
LEAKAGE CURRENT
<0.75mA / 277VAC

PROTECTION

OVER CURRENT
105 ~ 125% Protection type : Hiccup mode, recovers automatically after fault condition is removed
SHORT CIRCUIT
Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE
27 ~ 33V Protection type : Shut down and latch off o/p voltage, re-power on to recover
OVER TEMPERATURE
Shut down and latch off o/p voltage, re-power on to recover

ENVIRONMENT

WORKING TEMP.
-55 ~ +70℃ (Refer to "Derating Curve")
WORKING HUMIDITY
20 ~ 95% RH non-condensing
STORAGE TEMP., HUMIDITY
-60 ~ +80℃, 10 ~ 95% RH non-condensing
TEMP. COEFFICIENT
±0.03%/℃ (0 ~ 60℃)
VIBRATION
20 ~ 500Hz, 10G 12min./1cycle, period for 72min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDSNote.8
UL62368-1,IEC62368-1, IP65 (or IP68 for HEP-320 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
1565.6K hrs min. Telcordia SR-332 (Bellcore) ; 154.2Khrs min. MIL-HDBK-217F (25℃)
DIMENSION
252*90*43.8mm (L*W*H)
PACKING
1.88Kg; 8pcs/16Kg/0.92CUFT

Certifications & ratings

IP rating
IP65 IP68 (Optional)
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. Derating may be needed under low input voltages. Please check the static characteristics for more details.
  5. 5. A-type only.
  6. 6. Length of set up time is measured at cold first start. Turning ON/OFF the power supply may lead to increase of the set up time.
  7. 7. The power supply is considered as a component that will be operated in combination with final equipment. Since EMC performance will be affected by the complete installation, the final equipment manufacturers must re-qualify EMC Directive on the complete installation again. (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf)
  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).
  9. 9. The water protection level test for the IP68 rating is performed 1000mm below the surface of the water for 1 month.

Technical drawings

HEP-320-24 Block Diagram
Block Diagram
HEP-320-24 Derating Curve
Derating Curve
HEP-320-24 Mechanical Specification
Mechanical Specification

Typical applications

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

Downloads

FAQ

Can I use the HEP-320-24 for 24V PLCs, sensors, and industrial control equipment?

Yes, this is a 24V constant voltage power supply rated for 320.16W and 13.34A. It fits 24V industrial control loads that need more capacity than lower-wattage 24V supplies.

Is the HEP-320-24 suitable for 24V automation systems installed in harsh environments?

Yes, it is built for harsh conditions with IP68 protection, a fanless design, and 10G vibration resistance. The operating range of -55°C to +70°C also supports use in extreme ambient temperatures.

Can this model support larger 24V embedded or communications equipment loads?

It can support 24V systems up to 13.34A and 320.16W, which makes it suitable for higher-load constant-voltage equipment. Typical efficiency at 24V is 94%, with ripple and noise of 150mVp-p max.

Would the HEP-320-24 work for 24V LED or signage power requirements?

It can be used for 24V constant-voltage loads where the total demand stays within 320.16W and 13.34A. The 24V output makes it appropriate for larger 24V systems that need more available power than lower-wattage 24V supplies.

Is the HEP-320-24 appropriate for outdoor locations?

This version is rated IP68, so it is suited to outdoor, wet, and dusty environments. Its -55°C to +70°C operating range also supports very cold and very hot installation conditions.

How does the HEP-320-24 compare with other HEP-320 models?

In the HEP-320 range, the 12V model is 264W at 22A, the 15V model is 285W at 19A, the 24V model is 320.16W at 13.34A, the 36V model is 320.4W at 8.9A, the 48V model is 321.6W at 6.7A, and the 54V model is 321.3W at 5.95A. The A versions in the sibling list use those same electrical ratings, while this specific product is the IP68 24V version.

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Mean Well HEP-320-24 Power Supply 320.16W 24V
Mean Well

Mean Well HEP-320-24 Power Supply 320.16W 24V 13.34A

Log in to see price

HEP-320-24 is the 24V output model of this series: rated current 13.34A, rated power 320.16W, typical efficiency 94%.

HEP-320 is a 320W industrial AC/DC power supply featuring the outstanding capability to operate under a harsh environment with high dust density, humidity, vibration and altitude. The entire series is housed with a robust 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-320, with a fanless design, perfectly work between -55℃ and +70℃ 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~+70℃ 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.8)
  • 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 24V
  • 100W 24V Adjustable
  • 1000W 24V
  • 150W 24V
  • 150W 24V Adjustable
  • 185W 24V
  • 185W 24V Adjustable
  • 240W 24V
  • 240W 24V Adjustable
  • 320W 24V
  • 320W 24V Adjustable
  • 480W 24V
  • 480W 24V Adjustable
  • 600W 24V
  • 600W 24V Adjustable
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