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Mean Well HEP-240-12A Power Supply 192W 12V 16A

fanless designhigh efficiency up to 96%rugged metal case with IP65 design(IP68 option available)withstand 10G vibrationsuitable for harsh environment
SKU HEP-240-12A
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Select model — 12 in this family

HEP-240-12A
Available to order
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Overview

HEP-240-12A is the 12V output model of this series: rated current 16A, rated power 192W, typical efficiency 90%.

HEP-240 is a 240W 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 93.5%, enabling HEP-240, 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 93.5%
  • 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 (Note.10)

Specifications

HEP-240-12ASpecifications from the official datasheet (2025-10-10 edition)

OUTPUT

DC VOLTAGE
12V
RATED CURRENT
16A
RATED POWER
192W
RIPPLE & NOISE (max.)Note.2
150mVp-p
VOLTAGE ADJ. RANGENote.5
11.2 ~ 12.8V
CURRENT ADJ. RANGE
Can be adjusted by internal potentiometer for A type only
CURRENT ADJ. RANGE
8 ~ 16A
VOLTAGE TOLERANCENote.3
±2.5%
LINE REGULATION
±0.5%
LOAD REGULATION
±2.0%
SETUP, RISE TIMENote.6
1000ms,80ms/115VAC 500ms,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>0.92/277VAC at full load
EFFICIENCY (Typ.)
90%
AC CURRENT (Typ.) 12V
2A / 115VAC 1.05A / 230VAC 0.9A/277VAC
AC CURRENT (Typ.) 15~54V
2.5A / 115VAC 1.3A / 230VAC 1.1A/277VAC
INRUSH CURRENT(Typ.)
COLD START 75A at 230VAC
LEAKAGE CURRENT
<0.75mA / 277VAC

PROTECTION

OVER CURRENT
105 ~ 125% Protection type : Constant current limiting, recovers automatically after fault condition is removed
SHORT CIRCUIT
Constant current limiting, recovers automatically after fault condition is removed
OVER VOLTAGE
13.5 ~ 18V Protection type : Shut down and latch off o/p voltage, re-power on to recover
OVER TEMPERATURE
Shut down o/p voltage, recovers automatically after temperature goes down

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-240 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
2008.7K hrs min. Telcordia SR-332 (Bellcore) ; 171.3Khrs min. MIL-HDBK-217F (25℃)
DIMENSION
244.2*68*38.8mm (L*W*H)
PACKING
1.3Kg; 12pcs/16.6Kg/0.84CUFT

Certifications & ratings

IP rating
IP65 IP68 (optional)
Test conditions and notes10
  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 water protection level test for the IP68 rating is performed 1000mm below the surface of the water for 1 month.
  9. 9. Refer to warranty statement.
  10. 10. 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-240-12A Block Diagram
Block Diagram
HEP-240-12A Derating Curve
Derating Curve
HEP-240-12A 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-240-12A in a 12V automation panel or industrial enclosure?

Yes, this is a 12V constant-voltage supply rated at 192W and 16A, which matches 12V automation and control equipment within that load range. It is intended for systems that specifically need 12V DC output.

Is the HEP-240-12A a good choice for 12V embedded controllers and field electronics?

It can be used for 12V embedded controllers and field electronics as long as the total draw remains within 16A and 192W. The IP65 rating and 90% typical efficiency can be beneficial in compact equipment where airflow is limited.

Can this model power multiple 12V industrial devices from one supply?

Yes, it can support multiple 12V devices when their combined requirement stays within the unit's 192W and 16A rating. The 90-264VAC input range (277VAC operational, also 128-370VDC) also makes it flexible for use across different AC source conditions.

Can the HEP-240-12A be used in exposed industrial environments?

This model is rated IP65 water-resistant and has an operating temperature range of -55°C to +70°C (with derating per the derating curve), so it is suitable for demanding industrial environments with dust, moisture, and temperature extremes. Its 10G vibration resistance also supports harsh-duty use.

How does the HEP-240-12A compare to other 12V HEP power supplies?

This spec sheet covers only the HEP-240 series, so other HEP families are not compared here. In 12V, the HEP-240-12A (IP65, voltage and current level adjustable by internal potentiometer) and the HEP-240-12 (IP68, cable I/O) are both rated 192W and 16A. The other HEP-240 voltages (15-54V) are rated about 225-241W.

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Mean Well HEP-240-12A Power Supply 192W 12V
Mean Well

Mean Well HEP-240-12A Power Supply 192W 12V 16A

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HEP-240-12A is the 12V output model of this series: rated current 16A, rated power 192W, typical efficiency 90%.

HEP-240 is a 240W 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 93.5%, enabling HEP-240, 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 93.5%
  • 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 (Note.10)

Typical applications

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

Model

  • 100W 12V
  • 100W 12V Adjustable
  • 150W 12V
  • 150W 12V Adjustable
  • 185W 12V
  • 185W 12V Adjustable
  • 240W 12V
  • 240W 12V Adjustable
  • 320W 12V
  • 320W 12V Adjustable
  • 600W 12V
  • 600W 12V Adjustable
View product

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