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Mean Well UHP-200A-4.5 Power Supply 180W 4.5V 40A

low profile(26mm)low leakage current < 1.0mAfanlesswithstand 300VAC surge for 5 seconds

SKU UHP-200A-4.5

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Overview

UHP-200A-4.5 is the 4.5V output model of this series: rated current 40A, rated power 180W, typical efficiency 88%.

UHP-200A series is a 200W LED display power solution. The ultra low profile design that allows the height and weight of the signal module to be slim. It greatly simplifies the delivery and installation process. Accounting for high efficiency and energy saving, the series effectively achieves electricity reduction. It is suitable for LED signage display, moving sign, LED channel letter and LED TV wall etc.

Features

Universal AC input / Full range
Withstand 300VAC surge input for 5 seconds
Low profile:26mm
Built-in active PFC function
Fanless design, cooling by free air convection
Protections: Short circuit / Overload / Over voltage / Over temperature
Low leakage current<1.0mA
LED indicator for power on
3 years warranty

Specifications

UHP-200A-4.5Specifications from the official datasheet (2024-11-23 edition)

OUTPUT

DC VOLTAGE: 4.5V
RATED CURRENT: 40A
CURRENT RANGE: 0~40A
RATED POWER: 180W
RIPPLE & NOISE(max.)^Note.2: 200mVp-p
VOLTAGE ADJ. RANGE: 4.3~4.7V
VOLTAGE TOLERANCE^Note.3: ±4.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±2.5%
SETUP, RISE TIME: 2000ms, 200ms/230VAC at full load, 3000ms, 200ms/115VAC at 80% load
HOLD UP TIME (Typ.): 10ms/230VAC 10ms/115VAC
DC OK FUNCTION: PSU Turns on:DC ok; PSU turns off:DC fail

INPUT

VOLTAGE RANGE^Note.4: 90 ~ 264VAC 127 ~ 370VDC
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR (Typ.): PF≥0.97/115VAC PF≥0.95/230VAC at full load
EFFICIENCY (Typ.): 88%
AC CURRENT (Typ.): 2.4A/115VAC 1.2A/230VAC
INRUSH CURRENT (Typ.): Cold start 85A/230VAC
LEAKAGE CURRENT: <1.0mA / 240VAC

PROTECTION

OVERLOAD: 110~140% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
SHORT CIRCUIT: Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE: 5 ~ 6.4V Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER TEMPERATURE: Protection type : Shut down O/P voltage, recovers automatically after fault condition is removed

ENVIRONMENT

WORKING TEMP.: -30 ~ +70℃(Refer to “OUTPUT LOAD vs TEMPERATURE")
WORKING HUMIDITY: 20 ~ 95% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +85℃, 10 ~ 95% RH
TEMP. COEFFICIENT: ±0.03%/℃ (0 ~ 50℃ )
VIBRATION: 10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes

SAFETY & EMC (Note.5)

SAFETY STANDARDS: UL 62368-1,TUV BS EN/EN62368-1,GB 4943.1, EAC TP TC 004 approved
WITHSTAND VOLTAGE: I/P-O/P:3.0KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
ISOLATION RESISTANCE: I/P-O/P, I/P-FG, O/P-FG:100M Ohms/500VDC/25℃/ 70%RH
EMC EMISSION^Note.8: Compliance to BS EN/EN55032 (CISPR32),GB17625.1,GB/T 9254.1, 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 4KV),EAC TP TC 020

OTHERS

MTBF: 1949.0 K hrs min. Telcordia SR-332 (Bellcore) ; 211.7K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 167*55*26mm (L*W*H)
PACKING: 0.42kg; 20pcs/ 11.4kg/0.76CUFT

Test conditions and notes8

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 : line regulation and load regulation.
4. Derating may be needed under low input voltages. Please check the static characteristics for more details.
5. 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.
6. Transient response measure shall be made with 10% load at least.
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 360mm*360mm 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. Warning: This equipment is compliant with Class A of CISPR 32. In a residential environment may cause radio interference.

Technical drawings

UHP-200A-4.5 Block Diagram — Block Diagram

UHP-200A-4.5 Mechanical Specification — Mechanical Specification

UHP-200A-4.5 Function manual — Function manual

UHP-200A-4.5 Installation — Installation

Typical applications

LED signage display
Moving sign
LED channel letter
LED TV wall

Downloads

Certificates5

UL Certificate (UHP-200A)(EN) PDF Download

CB Certificate (UHP-200A)(EN) PDF Download

EMC Certificate (UHP-200A)(EN) PDF Download

TUV Certificate (UHP-200A)(EN) PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

Other files1

Testing Report (UHP-200A-4.5)(EN) PDF Download

FAQ

What applications is the Mean Well UHP-200A-4.5 best suited for?

This model is designed for equipment that specifically requires a 4.5V DC supply with up to 40A of output current. It is a practical fit for OEM, industrial, and security-related systems where high current, low voltage, and a compact enclosed power supply are important. Buyers should match it to loads that are specified for 4.5V operation.

What are the key output specifications of the UHP-200A-4.5?

The UHP-200A-4.5 is rated for 180W total output power with a 4.5V DC output and 40A rated current. That makes it a high-current option for low-voltage applications that cannot use more common 12V or 24V supplies. The model name and rating are aligned around that 4.5V output class.

What AC input range does this power supply support?

This model supports a universal input range of 90 to 264VAC, and it also accepts 127 to 370VDC. That wide range makes it easier to standardize across projects that may operate in different mains environments. It also withstands a 300VAC surge input for 5 seconds.

How does the UHP-200A-4.5 handle cooling in compact installations?

The UHP-200A-4.5 uses a fanless design and cools by free air convection. It also has a low-profile 26mm form factor, which helps when space is limited inside equipment housings. For buyers trying to avoid fan noise and moving parts, that is a meaningful advantage.

What protection features are built into this model?

This power supply includes protection for short circuit, overload, over voltage, and over temperature. Those built-in safeguards make it better suited for professional equipment where power stability and fault response matter. It also includes a DC OK signal for status monitoring.

Is the UHP-200A-4.5 suitable for wider temperature ranges?

This model is specified for operation from -30°C to 70°C. That range makes it more suitable than many general-purpose indoor-only supplies for demanding commercial or industrial environments. Its fanless convection design also avoids reliance on active cooling hardware.

What warranty and physical characteristics should buyers know about?

The UHP-200A-4.5 carries a 3-year warranty from Mean Well. It weighs approximately 0.42 kg, which supports use in compact equipment designs where lower mass can be helpful. Its slim 26mm profile is one of the main physical differentiators of this series.

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Model	Power	Voltage	Current
Mean Well UHP-200A-5 Power Supply 200W 5V 40A	200W	5V	40A	View
Mean Well UHP-200A-4.2 Power Supply 168W 4.2V 40A	168W	4.2V	40A	View

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