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Mean Well UHP-350R-4.2 Power Supply 252W 4.2V - Redundant 60A

Name: Mean Well UHP-350R-4.2 Power Supply 252W 4.2V - Redundant 60A
Brand: Mean Well
SKU: UHP-350R-4.2
Price: 86.95 USD
Availability: InStock

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

SKU UHP-350R-4.2

$86.95 USD

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Overview

UHP-350R-4.2 is the 4.2V output model of this series: rated current 60A, rated power 252W, typical efficiency 89%.

UHP-350 series is a 350W 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 3.3V, 4.2V, 5V, 12V, 15V, 24V, 36V,48V and 55V. In addition to the high efficiency up to 94%, that the whole series operatesfrom -30℃ ~ 70℃ under air convection without fan. UHP-350 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-350 seriesserves as a high performance power supply solution for various industrial applications.

Features

Slim Low profile (31mm)
Fanless design,350W conversion
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-350R-4.2Specifications from the official datasheet (2024-11-23 edition)

OUTPUT

DC VOLTAGE: 4.2V
RATED CURRENT: 60A
RATED POWER: 252W
RIPPLE & NOISE (max.)^Note.2: 150mVp-p
VOLTAGE ADJ. RANGE: 3.6~4.4V
VOLTAGE TOLERANCE^Note.3: ±2.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±1.0%
SETUP, RISE TIME: 2000ms, 80ms/230VAC; 3000ms, 80ms/115VAC at full load;550ms/230VAC for 55V setup time
HOLD UP TIME (Typ.): 10ms/230VAC 10ms/115VAC

INPUT

VOLTAGE RANGE^Note.4: 90 ~ 264VAC 127 ~ 370VDC
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR (Typ.): PF≥0.94/230VAC PF≥0.98/115VAC at full load
EFFICIENCY (Typ.)^Note.7: 89%
AC CURRENT (Typ.): 4A/115VAC 2A/230VAC
INRUSH CURRENT (Typ.)^Note.8: 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.):15Vdc/10mA 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

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,EAC TP TC 004,BIS IS13252(Part1)/IEC60950-1 (except for 4.2V/15V/48V/55V) 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/EN55014,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: 1791.2 K hrs min. Telcordia SR-332 (Bellcore) ; 253.4K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 220*62*31mm (L*W*H)
PACKING: 0.68 kg;16 pcs/11.88 kg/0.63CUFT

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. 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)
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. Only for Blank type,R type efficiency slightly less than the Blank type.
8. Inrush current parameter has 10% tolerance.
9. RCM is on voluntary basis and meets relevant IEC or AS/NZS standards complying with AS/NZS 4417.1.

Technical drawings

UHP-350R-4.2 Block Diagram — Block Diagram

UHP-350R-4.2 Derating Curve — Derating Curve

UHP-350R-4.2 1.DC_OK Signal — 1.DC_OK Signal

UHP-350R-4.2 2.Redundant function — 2.Redundant function

UHP-350R-4.2 Mechanical Specification — Mechanical Specification

UHP-350R-4.2 Installation — Installation

Typical applications

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

Downloads

Certificates10

Mean Well UHP-350-BSMI Certificate PDF Download

Mean Well UHP-350(R)-CCC Certificate PDF Download

Mean Well UHP-350(R)-TUV Certificate PDF Download

Mean Well UHP-350(R)-TUV(EN60335) Certificate PDF Download

Mean Well UHP-350(R)-CB(UL) Certificate PDF Download

Mean Well UHP-350(R)-CB(TUV) Certificate PDF Download

Mean Well UHP-350(R)-CB(60335) Certificate PDF Download

Mean Well UHP-350(R)-EMC Certificate PDF Download

Mean Well UHP-350(R)-CE-dec Certificate PDF Download

Mean Well UHP-350(R)-UK-dec Certificate PDF Download

Test reports1

Mean Well UHP-350-4.2 Test Report PDF Download

Catalogues2

Mean Well Catalog (Industrial) PDF Download

Mean Well Sign Panel Catalog PDF Download

FAQ

Can I use the UHP-350R-4.2 for a redundant 4.2V DC bus in industrial control equipment?

Yes, this model is a constant voltage 4.2V power supply rated for 60A and 252W. Its optional redundant function and DC OK feature make it appropriate for low-voltage industrial or embedded systems that are designed around a 4.2V bus.

Is the UHP-350R-4.2 suitable for high-current embedded computing or processor loads that need 4.2V?

It can fit embedded or compute hardware that specifically requires a regulated 4.2V DC source and can draw up to 60A. The fanless design and 220 x 62 x 31 mm low-profile housing also help where space is limited.

Can this 4.2V power supply be used in telecom or automation cabinets with worldwide AC input?

It is designed for 90-264VAC input, so it can be considered for systems that need the same 4.2V output across a broad AC input range. The key fit check is that the load must be a constant voltage 4.2V load within 252W and 60A.

What is the difference between the UHP-350R-4.2 and other UHP-350R models?

Within the UHP-350R redundant series, the listed variants are 3.3V 198W 60A, 4.2V 252W 60A, 5V 300W 60A, 12V 350.4W 29.2A, 15V 351W 23.4A, 24V 350.4W 14.6A, 36V 351W 9.75A, and 48V 350.4W 7.3A. This model is the 4.2V version, so it is the fit when the equipment is built around 4.2V rather than the other output voltages in the same series.

Is the UHP-350R-4.2 suitable for outdoor or harsh-temperature locations?

The provided specs show an operating temperature range of -30C to +70C, which supports use across a wide temperature span. The specs do not list an IP rating, so outdoor exposure is not established by the published data alone.

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