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Mean Well UHP-350R-3.3 Power Supply 198W 3.3V - Redundant 60A

Name: Mean Well UHP-350R-3.3 Power Supply 198W 3.3V - Redundant 60A
Brand: Mean Well
SKU: UHP-350R-3.3
Price: 86.95 USD
Availability: InStock

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

SKU UHP-350R-3.3

$86.95 USD

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Overview

UHP-350R-3.3 is the 3.3V output model of this series: rated current 60A, rated power 198W, typical efficiency 88.5%.

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-3.3Specifications from the official datasheet (2024-11-23 edition)

OUTPUT

DC VOLTAGE: 3.3V
RATED CURRENT: 60A
RATED POWER: 198W
RIPPLE & NOISE (max.)^Note.2: 150mVp-p
VOLTAGE ADJ. RANGE: 3.2~3.5V
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: 88.5%
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: 3.8 ~ 4.6V 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-3.3 Block Diagram — Block Diagram

UHP-350R-3.3 Derating Curve — Derating Curve

UHP-350R-3.3 1.DC_OK Signal — 1.DC_OK Signal

UHP-350R-3.3 2.Redundant function — 2.Redundant function

UHP-350R-3.3 Mechanical Specification — Mechanical Specification

UHP-350R-3.3 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-350-3.3 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-3.3 for 3.3V embedded computing or logic-heavy systems?

Yes, if the equipment requires a constant 3.3V rail and the total load stays within 198W and 60A. That makes it relevant for high-current 3.3V embedded, digital, or logic-distribution applications rather than higher-voltage industrial buses.

Is the UHP-350R-3.3 suitable for powering 3.3V backplanes or controller boards?

It can fit 3.3V controller boards, backplanes, and other electronics that need substantial current at a low DC voltage. The 60A output capacity is the key spec here, while the supply remains limited to 198W total.

Can this model be used in automation equipment with a dedicated 3.3V DC rail?

It is appropriate only where the system is designed around a constant-voltage 3.3V rail. If the automation or embedded load stays under 60A and 198W, this model is aligned with that requirement.

What other output variants are available in the UHP-350R redundant family?

The UHP-350R series includes 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, 48V 350.4W 7.3A, and 55V 350W 6.3A. The UHP-350R-3.3 is the lowest-voltage standard option in that group and is rated for 60A.

Can the UHP-350R-3.3 be used in hot or cold environments, and is it outdoor-rated?

Its operating temperature range is -30°C to +70°C, which supports a wide range of indoor industrial temperature conditions. No IP rating is listed in the provided specs, so the data does not establish outdoor or water-exposed use.

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