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Mean Well

Mean Well HEP-100-12 Power Supply 100.08W 12V 8.34A

fanless designhigh efficiency up to 96%rugged metal case with IP65 design(IP68 option available)withstand 10G vibrationsuitable for harsh environment
SKU HEP-100-12
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Select model — 12 in this family

HEP-100-12
Available to order
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Overview

HEP-100-12 is the 12V output model of this series: rated current 8.34A, rated power 100.08W, typical efficiency 92%.

HEP-100 is a 100W 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 93%, enabling HEP-100 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%
  • 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-100-12Specifications from the official datasheet (2025-10-10 edition)

OUTPUT

DC VOLTAGE
12V
RATED CURRENT
8.34A
RATED POWER
100.08W
RIPPLE & NOISE (max.)Note.2
120mVp-p
VOLTAGE ADJ. RANGENote.5
10.8 ~ 13.5V
CURRENT ADJ. RANGE
Can be adjusted by internal potentiometer for A type only
CURRENT ADJ. RANGE
5 ~ 8.34A
VOLTAGE TOLERANCENote.3
±2.0%
LINE REGULATION
±0.5%
LOAD REGULATION
±2.0%
SETUP, RISE TIMENote.7
1200ms,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>0.91/277VAC at full load
EFFICIENCY (Typ.)
92%
AC CURRENT (Typ.)
1.2A / 115VAC 0.55A / 230VAC 0.5A / 277VAC
INRUSH CURRENT(Typ.)
COLD START 60A 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 Protection type : Shut down o/p voltage with auto-recovery or re-power on to recovery
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 ~ +85℃, 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,IP65 (or IP68 for HEP-100 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
1970.2K hrs min. Telcordia SR-332 (Bellcore) ; 164.8Khrs min. MIL-HDBK-217F (25℃)
DIMENSION
220*68*38.8mm (L*W*H)
PACKING
1.12Kg; 12pcs/14.4Kg/0.8CUFT
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. Safety and EMC design refer to BS EN/EN60598-1, CNS15233, GB7000.1, FCC part18.
  7. 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.
  8. 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)
  9. 9. The water protection level test for the IP68 rating is performed 1000mm below the surface of the water for 1 month.
  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-100-12 Block Diagram
Block Diagram
HEP-100-12 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 Mean Well HEP-100-12 for a 12V industrial control or automation system?

Yes, this model is a 12V constant voltage power supply rated for 100.08W and 8.34A output. That makes it suitable for 12V industrial control, automation, and embedded systems that need a regulated 12V DC supply within that power and current range.

Is the HEP-100-12 suitable for 12V embedded or IT equipment in harsh environments?

It can be a fit for 12V embedded and IT equipment when the load stays within 100.08W and 8.34A. The 92% typical efficiency, 10G vibration resistance, and operating range of -55°C to +70°C (with derating per the derating curve) make it appropriate for demanding environments.

Can this power supply run a 12V outdoor electronics or monitoring system?

It is designed for harsh-environment use and carries an IP68 rating, so it is suited to outdoor or exposed locations where a sealed power supply is needed. It provides 12V constant voltage output up to 8.34A and 100.08W, so the connected 12V system needs to stay within those limits.

Can the HEP-100-12 be used indoors and outdoors in very hot or very cold conditions?

Yes, the unit is rated IP68 and has an operating temperature range of -55°C to +70°C, with output derating at the temperature extremes per the derating curve. Those specs make it suitable for both indoor and outdoor environments where moisture, dust, or wide temperature swings are a concern.

How does the HEP-100-12 compare with other HEP-100 series voltage options?

The HEP-100-12 is rated 100.08W at 12V and 8.34A, and the HEP-100-12A has the same 100.08W, 12V, and 8.34A ratings. Other HEP-100 variants are HEP-100-15 and HEP-100-15A at 100.05W, 15V, 6.67A; HEP-100-24 and HEP-100-24A at 96W, 24V, 4A; and HEP-100-36 and HEP-100-36A at 95.4W, 36V, 2.65A. The remaining options are HEP-100-48 and HEP-100-48A at 96W, 48V, 2A, plus HEP-100-54 and HEP-100-54A at 95.58W, 54V, 1.77A.

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Mean Well HEP-100-12 Power Supply 100.08W 12V
Mean Well

Mean Well HEP-100-12 Power Supply 100.08W 12V 8.34A

Log in to see price

HEP-100-12 is the 12V output model of this series: rated current 8.34A, rated power 100.08W, typical efficiency 92%.

HEP-100 is a 100W 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 93%, enabling HEP-100 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%
  • 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
  • 600W 12V Adjustable
View product

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