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Mean Well UHP-500R-4.2 Power Supply 336W 4.2V - Redundant 80A

Name: Mean Well UHP-500R-4.2 Power Supply 336W 4.2V - Redundant 80A
Brand: Mean Well
SKU: UHP-500R-4.2
Price: 119.49 USD
Availability: InStock

slim and low profilefanless designbuilt-in DC OK and redundant function

SKU UHP-500R-4.2

$119.49 USD

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Overview

UHP-500R-4.2 is the 4.2V output model of this series: rated current 80A, rated power 336W, typical efficiency 89%.

UHP-500 series is a 500W single-output slim type power supply with 31mm of low profile design. Adopting the full range 90~264VAC input, the entire series provides an output voltage line of 4.2V, 5V,12V,15V,24V,36V,48Vand 55V.In addition to the high efficiency up to 95%, that the whole series operates from -30℃ ~ 70℃ under air convection without fan. UHP-500 has the complete protection functions and 5G anti-vibration capability;It is complied with the international safety regulations such as TUV BS EN/EN62368-1,BS EN/EN60335-1, UL 62368-1 and GB 4943.1 . UHP-500 series serves as a high performance power supply solution for various industrial applications.

Features

Slim and Low profile (31mm)
Fanless design,500W convection
Withstand 300VAC surge input for 5 seconds
Built-in active PFC function
-30~+70℃ working temperature
Protections: Short circuit / Overload / Over voltage / Over temperature
DC OK active signal and redundant function(option)
Operating altitude up to 5000 meter (Note.5)
LED indicator for power on
3 years warranty

Specifications

UHP-500R-4.2Specifications from the official datasheet (2025-08-01 edition)

OUTPUT

DC VOLTAGE: 4.2V
RATED CURRENT: 80A
RATED POWER: 336W
RIPPLE & NOISE (max.)^Note.2: 200mVp-p
VOLTAGE ADJ. RANGE^Note.7: 3.6~4.4V
VOLTAGE TOLERANCE^Note.3: ±2.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±1.0%
SETUP, RISE TIME: 1000ms, 50ms/230VAC; 1000ms,50ms/115VAC at full load;550ms/230VAC for 55V setup time
HOLD UP TIME (Typ.): 12ms/230VAC 12ms/115VAC

INPUT

VOLTAGE RANGE^Note.4: 90 ~ 264VAC 127 ~ 370VDC
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR (Typ.): PF≥0.95/230VAC PF≥0.98/115VAC at full load
EFFICIENCY (Typ.): 89%
AC CURRENT (Typ.): 4.85A/115VAC 2.6A/230VAC
INRUSH CURRENT (Typ.)^Note9: Cold start 30A/115VAC 60A/230VAC
LEAKAGE CURRENT: <0.75mA / 240VAC

PROTECTION

OVERLOAD: 110~140% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE: 4.62 ~ 5.46V Protection type :Shut down O/P voltage,re-power on to recover
OVER TEMPERATURE: Protection type :Shut down O/P voltage, recovers automatically after temperature goes down

FUNCTION

DC OK SIGNAL(Optional): Contact rating(max.):30Vdc/1A resistive load
REDUNDANT(Optional): For parallel connection protection:For parallel applications, when one PSU can not work , the another one will be automatically enabled. This can prevent the system crash, and provide the reliability of system

ENVIRONMENT

WORKING TEMP.: -30 ~ +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: 10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes

SAFETY & EMC (Note.6)

SAFETY STANDARDS: UL 62368-1,TUV BS EN/EN62368-1,BS EN/EN60335-1(Except for 55V), BS EN/EN61558-1,BS EN/EN61558-2-16, GB 4943.1, BSMI CNS15598-1, BIS IS13252(Part1): 2010/IEC 60950-1: 2005(NOTE 11), EAC TP TC 004 approved; Design refer to AS/NZS 61558.1/2.16, AS/NZS 62368.1
WITHSTAND VOLTAGE: I/P-O/P:3.75KVAC I/P-FG:2KVAC O/P-FG:1.25KVAC
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,GB17625.1,GB/T 9254.1,Class B, BS EN/EN61000-3-2,-3, BSMI CNS15936, EAC TP TC 020
EMC IMMUNITY: Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11;BS EN/EN61000-6-2 (BS EN/EN50082-2),BS EN/EN55035, heavy industry level ,EAC TP TC 020

OTHERS

MTBF: 1264.1 K hrs min. Telcordia SR-332 (Bellcore) ; 167.6K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 232*81*31mm (L*W*H)
PACKING: 0.905kg; 16pcs/15.48kg/0.82CUFT

Test conditions and notes11

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. The ambient temperature derating of 3.5℃/1000m is needed for operating altitude greater than 2000m(6500ft)
6. The power supply is considered a component which will be installed into a final equipment. 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)
7. Please refer to derating curve.
8. R type efficiency slightly less than the Blank type, according to the actual measurement.
9. Inrush current parameter has 10% tolerance.
10. RCM is on voluntary basis and meets relevant IEC or AS/NZS standards complying with AS/NZS 4417.1.
11. Some models or factory may not have the BIS marking , please contact MEAN WELL’s sales for more details.

Technical drawings

UHP-500R-4.2 Block Diagram — Block Diagram

UHP-500R-4.2 Derating Curve — Derating Curve

UHP-500R-4.2 Mechanical Specification — Mechanical Specification

UHP-500R-4.2 Installation — Installation

Typical applications

Industrial automation machinery
Industrial control system
Mechanical and electrical equipment
Electronic instruments, equipments or apparatus
LED display application
Power Source Equipment for PoE(55V model)

Downloads

Certificates9

Mean Well UHP-500-BSMI Certificate PDF Download

Mean Well UHP-500(R)-CCC Certificate PDF Download

Mean Well UHP-500(R)-TUV Certificate PDF Download

Mean Well UHP-500(R)-TUV(60335) Certificate PDF Download

Mean Well UHP-500(R)-CB(60335) Certificate PDF Download

Mean Well UHP-500(R)-CB(UL) Certificate PDF Download

Mean Well UHP-500(R)-EMC Certificate PDF Download

Mean Well UHP-500(R)-CE-dec Certificate PDF Download

Mean Well UHP-500(R)-UK-dec Certificate PDF Download

Test reports1

Mean Well UHP-500-4.2 Test Report PDF Download

Catalogues2

Mean Well Catalog (Industrial) PDF Download

Mean Well Sign Panel Catalog PDF Download

FAQ

Can I use the UHP-500R-4.2 for a 4.2V high-current embedded or processor power rail?

Yes, this model is a 4.2V constant voltage power supply rated for 336W and 80A. It is intended for applications that specifically require a very low voltage rail with high available current.

Is this power supply suitable for low-voltage industrial electronics that need high current?

It can be suitable where the load is designed for 4.2V constant voltage input and requires substantial current capacity. The unit provides up to 80A at 4.2V with 336W total power.

Can the UHP-500R-4.2 support a centralized 4.2V DC bus in test or automation equipment?

Yes, if the equipment is built around a 4.2V constant voltage bus and the combined demand stays within 80A and 336W. This model is more specialized than the higher-voltage versions because the output is only 4.2V.

Is this a fit for compact equipment that needs a low-profile, fanless 4.2V supply?

The listed features include slim and low profile construction, fanless design, and dimensions of 232.0 × 81.0 × 31.0 mm. That makes it relevant for compact enclosures needing a 4.2V high-current source.

Can the UHP-500R-4.2 be used in outdoor or wide-temperature environments?

Its operating temperature range is -30°C to +70°C, so the temperature specification is broad. However, no IP rating is provided in the specs, so the published data does not confirm exposed outdoor suitability.

How does the UHP-500R-4.2 differ from the other UHP-500R redundant models?

The listed UHP-500R versions are 4.2V 336W 80A, 5V 400W 80A, 12V 500.4W 41.7A, 15V 501W 33.4A, 24V 501.6W 20.9A, 36V 500.4W 13.9A, and 48V 501.6W 10.45A. The UHP-500R-4.2 is the lowest-voltage option in that group and also one of the highest-current options at 80A.

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