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Mean Well

Mean Well HEP-185-12 Power Supply 156W 12V 13A

fanless designhigh efficiency up to 96%rugged metal case with IP65 design(IP68 option available)withstand 10G vibrationsuitable for harsh environment
SKU HEP-185-12
$103.01 USD
Shipping calculated at checkout.

Select model — 11 in this family

HEP-185-12
Available to order
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Overview

HEP-185-12 is the 12V output model of this series: rated current 13A, rated power 156W, typical efficiency 91.5%. Type Blank: Optional model, with fixed Vo and Io level (IP68).

HEP-185 is a 185W 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 94%, enabling HEP-185 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 94%
  • 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
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • Operating altitude up to 5000 meters (Note.9)
  • 6 years warranty

Specifications

HEP-185-12Specifications from the official datasheet (2025-10-10 edition)

OUTPUT

DC VOLTAGE
12V
RATED CURRENT
13A
RATED POWER
156W
RIPPLE & NOISE (max.)Note.2
150mVp-p
VOLTAGE ADJ. RANGENote.5
10.8 ~ 13.5V
VOLTAGE TOLERANCENote.3
±2.5%
LINE REGULATION
±0.5%
LOAD REGULATION
±2.0%
SETUP, RISE TIMENote.7
1000ms,50ms/115VAC 500ms,50ms/230VAC at full load
HOLD UP TIME (Typ.)
16ms 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.)
91.5%
AC CURRENT (Typ.) 12V
1.8A / 115VAC 0.8A / 230VAC 0.7A / 277VAC
AC CURRENT (Typ.) 15V ~ 54V
2.1A / 115VAC 1A / 230VAC 0.8A / 277VAC
INRUSH CURRENT(Typ.)
COLD START 65A at 230VAC
LEAKAGE CURRENT
<0.75mA / 277VAC

PROTECTION

OVERLOAD
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
14 ~ 17V
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.6,9
UL62368-1, IEC62368-1, IP68 for HEP-185 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
1967.4K hrs min. Telcordia SR-332(Bellcore) ; 164.2K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
228*68*38.8mm (L*W*H)
PACKING
1.15Kg; 12pcs/14.8Kg/0.8CUFT

Certifications & ratings

IP level
IP65 IP68 (Optional)

MODEL ENCODING

A
Standard model, Vo and Io level can be adjusted through internal potentiometer; IP65
Blank (this model)
Optional model, with fixed Vo and Io level; IP68
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. 6. Safety and EMC design refer to BS EN/EN60598-1, CNS15233, GB7000.1, FCC part18.
  6. 7. 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. 8. 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. 9. The water protection level test for the IP68 rating is performed 1000mm below the surface of the water for 1 month.
  9. 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-185-12 Block Diagram
Block Diagram
HEP-185-12 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-185-12 for a 12V industrial control panel or automation system?

Yes, this is a 12V constant-voltage supply rated for 156W and 13A. It fits 12V DC control or automation equipment that stays within those output limits.

Is the HEP-185-12 suitable for 12V CCTV, access control, or security hardware?

It can support 12V security or access-control equipment when the total load does not exceed 156W or 13A. Its wide 90-264VAC input (277VAC operational) also helps in sites with varied AC input conditions.

Can this model power 12V embedded electronics in a sealed or washdown environment?

Yes, the HEP-185-12 is listed here as IP68, which makes it the more sealed option in this group. Combined with its -55°C to +70°C operating range (subject to the derating curve), it is suited to demanding indoor or outdoor environments.

Is the HEP-185-12 appropriate for outdoor 12V equipment exposed to weather?

For applications that need a higher ingress rating, this version is better suited because it is specified as IP68. It is also rated to withstand 10G vibration (20-500Hz) for harsh-environment deployment.

How does the HEP-185-12 compare with other 12V HEP power supplies?

On this sheet, the HEP-185-12 and HEP-185-12A are both rated 156W at 13A; the HEP-185-12 is the IP68 version and the HEP-185-12A the IP65 version. The other HEP-185 outputs are 172W at 15V, 187.2W at 24V, 36V and 48V, and 186.3W at 54V. Ratings of other HEP power classes are given on their own datasheets.

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Other HEP-185 Models

1 other model
ModelPowerVoltageCurrent
Mean Well HEP-185-12A Power Supply 156W 12V 13A 156W 12V 13A View
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Mean Well HEP-185-12 Power Supply 156W 12V
Mean Well

Mean Well HEP-185-12 Power Supply 156W 12V 13A

$103.01 USD

HEP-185-12 is the 12V output model of this series: rated current 13A, rated power 156W, typical efficiency 91.5%. Type Blank: Optional model, with fixed Vo and Io level (IP68).

HEP-185 is a 185W 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 94%, enabling HEP-185 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 94%
  • 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
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • Operating altitude up to 5000 meters (Note.9)
  • 6 years warranty

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
View product

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