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Mean Well HEP-2300-55 Power Supply 2300W 55V 41.8A

fanless designhigh efficiency up to 95.5%rugged metal case with IP65 design(IP68 option available)withstand 10G vibrationsuitable for harsh environment

SKU HEP-2300-55

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Overview

HEP-2300-55 is the model of this series: typical efficiency 95.5%.

HEP-2300 is a 2300W 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 glue.Adopting the full range 90~305VAC input, the series provides an output voltage 55V. In addition to the high efficiency up to 95.5%, that the series operates from -40℃ ~ 70℃ under free air convection without fan. HEP-2300 has the complete protection functions and 10G anti-vibration capability ; It is complied with the international safety regulations such as TUV EN62368-1 UL62368-1, and design refers to EN61558-1 and EN60335-1. HEP-2300 series serves as a high performance power supply solution for various industrial and 4G/5G telecom applications.

Features

High efficiency up to 95.5% and active PFC function
Fanless design, cooling by free air convection
Aluminum case and filling with heat-conducted glue
Withstand 10G vibration test
Wide operating temperature range -40 ~ +70℃
Charger function for lead-acid batteries and Li-ion batteries
Built-in default 2/3 stage charging curves and programmable curve
Built-in CANBus and PMBus / MODBus by optional
Output voltage and constant current level programmable
Protections: Short circuit / Over load / Over voltage / Over temperature
Built-in remote ON-OFF control and DC OK active signal
Harness connector type with AC fail and T-Alarm signal
LED indicator for power on and 12V auxiliary power available
Diverse installation scenarios-Mounting methods
6 years warranty

Specifications

HEP-2300-55Specifications from the official datasheet (2025-03-14 edition)

OUTPUT

DC VOLTAGE (factory default): 55V
CURRENT (factory default): 41.8A
RATED CURRENT (max.): 48A
POWER (factory default): 2300W
RATED POWER (max.): 2304W
FULL POWER VOLTAGE RANGE: 48 ~ 57.6V
RIPPLE & NOISE (max.)^Note.2: 480mVp-p
VOLTAGE ADJ. RANGE: By potentiometer VR 39 ~ 57.6V
VOLTAGE TOLERANCE^Note.3: ±1.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±0.5%
SETUP, RISE TIME: 1800ms, 100ms/230VAC at full load
HOLD UP TIME (Typ.): 12ms/230VAC at full load

INPUT

VOLTAGE RANGE^Note.4: 90 ~ 305VAC 250 ~ 431VDC
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR (Typ.): PF>0.99/115VAC, PF>0.95/230VAC, PF>0.93/277VAC at full load
EFFICIENCY (Typ.): 95.5%
AC CURRENT (Typ.): 13.3A / 115VAC 11A / 230VAC 9.3A / 277VAC
INRUSH CURRENT (Typ.): Cold start 60A/230VAC
LEAKAGE CURRENT: <1.8mA Peak / 240VAC <2mA Peak / 277VAC

PROTECTION

OVERLOAD: 105 ~ 115% rated output power Protection type : Constant current limiting, unit will shutdown after 5 sec. re-power on to recover
OVER VOLTAGE: 59 ~ 69.1V Protection type :Shut down O/P voltage,re-power on to recover
OVER TEMPERATURE: Shut down O/P voltage, recovers automatically after temperature goes down

FUNCTION

OUTPUT VOLTAGE PROGRAMMABLE(PV)^{Note 5}: Adjustment of output voltage is allowable to 50 ~ 120% of nominal output voltage Please refer to the Function Manual
OUTPUT CURRENT PROGRAMMABLE(PC)^{Note 5}: Adjustment of constant current level is allowable to 20 ~ 100% of rated current Please refer to the Function Manual
REMOTE ON/OFF CONTROL: Power ON : Short circuit Power OFF : Open circuit
AUXILIARY POWER: 12V@0.5A tolerance±10%, ripple 150mVp-p
DC-OK SIGNAL: The TTL signal out, PSU turn on = 4.5 ~ 5.5V ; PSU turn off = -0.5 ~ 0.5V. Please refer to the Function Manual

ENVIRONMENT

WORKING TEMP.: -40 ~ +70℃(Refer to “Derating Curve")
WORKING HUMIDITY: 20 ~ 95% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +85℃, 10 ~ 95% RH non-condensing
TEMP. COEFFICIENT: ±0.03%/℃ (0 ~ 50℃)
VIBRATION: 20 ~ 500Hz, 10G 12min./1cycle, period for 72min. each along X, Y, Z axes
IP rating: IP66 IP67

SAFETY & EMC

SAFETY STANDARDS: UL62368-1,TUV BS EN/EN62368-1, EAC TP TC 004 approved; design refers to BS EN/EN61558-1, BS EN/EN60335-1(by request)
WITHSTAND VOLTAGE^{Note 6}: OVCⅢ I/P-O/P: 6KVDC I/P-FG:4KVDC O/P-FG:4KVDC
ISOLATION RESISTANCE^{Note 6}: I/P-O/P, I/P-FG,O/P-FG:100M Ohms/500VDC/25℃/ 70%RH
EMC EMISSION: Parameter Standard Test Level

Conducted BS EN/EN55032 (CISPR32) Class B
Radiated BS EN/EN55032 (CISPR32) Class A
Harmonic Current BS EN/EN61000-3-2 Class A
Voltage Flicker BS EN/EN61000-3-3 -----; BS EN/EN55024, BS EN/EN61000-6-2
EMC IMMUNITY: Parameter Standard Test Level

ESD BS EN/EN61000-4-2 Level 3, 8KV air; Level 2, 4KV contact
Radiated BS EN/EN61000-4-3 Level 3
EFT / Burst BS EN/EN61000-4-4 Level 3
Surge BS EN/EN61000-6-2 2KV/Line-Line 4KV/Line-Earth
Conducted BS EN/EN61000-4-6 Level 3
Magnetic Field BS EN/EN61000-4-8 Level 4
Voltage Dips and Interruptions BS EN/EN61000-4-11 >95% dip 0.5 periods, 30% dip 25 periods, >95% interruptions 250 periods

Parameter	Standard	Test Level
Conducted	BS EN/EN55032 (CISPR32)	Class B
Radiated	BS EN/EN55032 (CISPR32)	Class A
Harmonic Current	BS EN/EN61000-3-2	Class A
Voltage Flicker	BS EN/EN61000-3-3	-----; BS EN/EN55024, BS EN/EN61000-6-2

Parameter	Standard	Test Level
ESD	BS EN/EN61000-4-2	Level 3, 8KV air; Level 2, 4KV contact
Radiated	BS EN/EN61000-4-3	Level 3
EFT / Burst	BS EN/EN61000-4-4	Level 3
Surge	BS EN/EN61000-6-2	2KV/Line-Line 4KV/Line-Earth
Conducted	BS EN/EN61000-4-6	Level 3
Magnetic Field	BS EN/EN61000-4-8	Level 4
Voltage Dips and Interruptions	BS EN/EN61000-4-11	>95% dip 0.5 periods, 30% dip 25 periods, >95% interruptions 250 periods

OTHERS

MTBF: 478K hrs min. Telcordia SR-332 (Bellcore) ; 44.8K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 375*280*88mm (L*W*H), without mounting plate
PACKING: 12.5Kg;1pcs/13.5Kg/1.33CUFT

Test conditions and notes9

1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
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. Tolerance :includes set up tolerance, line regulation and load regulation.
4. Derating may be needed under low input voltages. Please check the derating curve for more details.
5. SVR function is disabled during PV/PC programming operation.
6. During withstandards voltage and isolation resistance testing, the screw "A" shall be temporarily removed, and shall be istalled back after the testing.
7. The power supply is considered a component which will be installed into a final equipment. All the EMC tests are been executed by mounting the unit on a 1100mm*650mm metal plate with 1mm of thickness. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies." (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf)
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. This series meets the typical life expectancy of > 55,000 hours of operation when Tcase, particularly tc point (or TMP, per DLC), is about 80℃ or less.

Technical drawings

HEP-2300-55 SPECIFICATION FOR CHARGER (Option function) — SPECIFICATION FOR CHARGER (Option function)

HEP-2300-55 BLOCK DIAGRAM — BLOCK DIAGRAM

HEP-2300-55 DERATING CURVE — DERATING CURVE

HEP-2300-55 TABLE OF FUNCTION — TABLE OF FUNCTION

HEP-2300-55 FUNCTION MANUAL — FUNCTION MANUAL

HEP-2300-55 H E P - 2 3 0 0 series — H E P - 2 3 0 0 series

HEP-2300-55 ◎ To exploit the temperature compensation function,… — ◎ To exploit the temperature compensation function,…

HEP-2300-55 6.Remote ON-OFF Control — 6.Remote ON-OFF Control

HEP-2300-55 7.DC-OK Signal — 7.DC-OK Signal

HEP-2300-55 MECHANICAL SPECIFICATION — MECHANICAL SPECIFICATION

HEP-2300-55 ※Control Pin No. Assignment(CN11) : JST S14B-PHDKS-B or… — ※Control Pin No. Assignment(CN11) : JST S14B-PHDKS-B or…

HEP-2300-55 Illustration (page 10) — Illustration (page 10)

Typical applications

Industrial automation machinery
Industrial control system at harsh environment
Mechanical and electrical equipment
Electronic instruments, equipments
Charing related equipments.
4G telecom system(RRU)
5G active antenna unit(AAU)

Downloads

Certificates5

UL Certificate (HEP-2300)(EN) PDF Download

CB Certificate (HEP-2300)(EN) PDF Download

EMC Certificate (HEP-2300)(EN) PDF Download

TUV Certificate (HEP-2300)(EN) PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

Other files1

Report (HEP-2300-55)(EN) PDF Download

FAQ

What applications is the Mean Well HEP-2300-55 designed for?

The HEP-2300-55 is a high-power enclosed AC/DC power supply suited to demanding industrial automation, harsh-environment control and 4G/5G telecom applications that need a stable 55V DC output. Its 2300W power rating and 41.8A factory-default output current (48A rated max.) make it a fit for systems with substantial continuous power demand. The aluminum case, fully potted with heat-conducted glue, also supports use in tougher operating environments.

What are the main output specifications of the HEP-2300-55?

This model delivers 2300W at 55V DC with a factory-default current of 41.8A (rated max. 48A, 2304W). Its output current can be programmed from 20% to 100% of rated current. Output voltage can be adjusted from 39 to 57.6V through the built-in potentiometer, or programmed from 50% to 120% of nominal voltage.

Can this power supply operate in harsh environmental conditions?

Yes. The HEP-2300-55 is specified for operation from -40°C to +70°C (see the derating curve), uses fanless free-air convection cooling, and has an aluminum case fully potted with heat-conducted glue. It also withstands 10G vibration testing (20 to 500Hz along X, Y and Z axes).

What input range does the HEP-2300-55 support?

This power supply supports a full-range AC input of 90 to 305VAC at 47 to 63Hz. It also accepts 250 to 431VDC input. Derating may be needed at low input voltages. That makes it suitable for deployments where broad input compatibility is important.

What protections are built into the Mean Well HEP-2300-55?

The HEP-2300-55 includes overload, over voltage, and over temperature protection. Overload protection operates at 105% to 115% of rated output power with constant current limiting; the unit shuts down after 5 seconds and must be re-powered to recover. Over-voltage protection (59 to 69.1V) shuts down the output and requires re-powering to recover, while over-temperature protection recovers automatically once the temperature drops.

How does the HEP-2300-55 differ from lower-power enclosed power supplies?

The HEP-2300-55 is built for high-output applications, delivering 2300W at 55V with typical efficiency of 95.5%. Compared with lower-power enclosed units, it stands out for its fanless convection-cooled design, wide -40°C to +70°C operating temperature range, 10G vibration resistance, and potted aluminum construction. It is intended for more demanding power loads rather than light-duty DC supply use.

What certifications and compliance standards does this model meet?

The HEP-2300-55 is approved to UL62368-1, TUV BS EN/EN62368-1, and EAC TP TC 004 safety standards. For EMC, it meets BS EN/EN55032 (Class B conducted, Class A radiated), BS EN/EN61000-3-2 Class A, BS EN/EN61000-3-3, and BS EN/EN55024 and BS EN/EN61000-6-2 immunity. These approvals are relevant for commercial and industrial procurement requirements.

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Model	Power	Voltage	Current
Mean Well HEP-2300-380 Power Supply 2300W 380V 6.05A	2300W	380V	6.05A	View
Mean Well HEP-2300-230 Power Supply 2300W 230V 10A	2300W	230V	10A	View
Mean Well HEP-2300-115 Power Supply 2300W 115V 20A	2300W	115V	20A	View

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