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Mean Well HEP-100-48 Power Supply 96W 48V 2A

fanless designhigh efficiency up to 96%rugged metal case with IP65 design(IP68 option available)withstand 10G vibrationsuitable for harsh environment
SKU HEP-100-48
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Select model — 15 in this family

HEP-100-48
Available to order
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Overview

HEP-100-48 is the 48V output model of this series: rated current 2A, rated power 96W, typical efficiency 93%.

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-100-48Specifications from the official datasheet (2025-10-10 edition)

OUTPUT

DC VOLTAGE
48V
RATED CURRENT
2A
RATED POWER
96W
RIPPLE & NOISE (max.)Note.2
200mVp-p
VOLTAGE ADJ. RANGENote.5
43 ~ 53V
CURRENT ADJ. RANGE
Can be adjusted by internal potentiometer for A type only
CURRENT ADJ. RANGE
1.25 ~ 2A
VOLTAGE TOLERANCENote.3
±1.0%
LINE REGULATION
±0.5%
LOAD REGULATION
±0.5%
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.)
93%
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
54 ~ 63V 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-100-48 Block Diagram
Block Diagram
HEP-100-48 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-100-48 for 48V industrial networking or telecom equipment?

Yes, if the equipment accepts 48V DC input and its total load stays within 96W and 2A. This is a constant-voltage power supply, so it is intended for devices that require a regulated 48V source.

Is this power supply suitable for 48V automation controllers or I/O devices?

It can be suitable for 48V control hardware as long as the system does not exceed the 2A output current or 96W power limit. The 10G vibration rating and -55°C to +70°C operating range (with derating) are useful in control cabinets and industrial equipment.

Can the HEP-100-48 run 48V LED lighting or display equipment?

Yes, for 48V constant-voltage lighting or display loads that remain at or below 96W total draw. The 93% typical efficiency can help in applications where heat needs to be kept low.

Is the HEP-100-48 rated for harsh outdoor conditions?

This version carries an IP68 rating, which makes it the better choice for exposed, wet, or dusty environments. It also supports operation from -55°C to +70°C (with derating per the derating curve) and is specified to withstand 10G vibration.

What are the main HEP-100 voltage choices around the HEP-100-48?

In the HEP-100 family, the available outputs are 12V at 100.08W and 8.34A, 15V at 100.05W and 6.67A, 24V at 96W and 4A, 36V at 95.4W and 2.65A, 48V at 96W and 2A, and 54V at 95.58W and 1.77A. The HEP-100-48 and HEP-100-48A share the same 96W, 48V, 2A electrical rating.

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Mean Well HEP-100-48 Power Supply 96W 48V
Mean Well

Mean Well HEP-100-48 Power Supply 96W 48V 2A

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HEP-100-48 is the 48V output model of this series: rated current 2A, rated power 96W, typical efficiency 93%.

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 48V
  • 100W 48V Adjustable
  • 1000W 48V
  • 150W 48V
  • 150W 48V Adjustable
  • 185W 48V
  • 185W 48V Adjustable
  • 240W 48V
  • 240W 48V Adjustable
  • 320W 48V
  • 320W 48V Adjustable
  • 480W 48V
  • 480W 48V Adjustable
  • 600W 48V
  • 600W 48V Adjustable
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