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Mean Well MSP-300-5 Power Supply 300W 5V 60A

Name: Mean Well MSP-300-5 Power Supply 300W 5V 60A
Brand: Mean Well
SKU: MSP-300-5
Price: 138.77 USD
Availability: InStock

built-in active PFCmedical safety approvedhigh efficiencyno load power consumption < 0.5~0.8W

SKU MSP-300-5

$138.77 USD

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Overview

MSP-300-5 is the 5V output model of this series: rated current 60A, rated power 300W, typical efficiency 82%.

Features

Universal AC input / Full range
Built-in active PFC function, PF>0.95
High efficiency up to 89%
Withstand 300VAC surge input for 5 seconds
Protections: Short circuit / Overload / Over voltage / Over temperature
Built-in constant current limiting circuit
1U low profile 41mm
Medical safety approved (MOOP level)
Built-in cooling fan ON-OFF control
Built-in DC OK signal
Built-in remote ON-OFF control
Standby 5V@0.3A
Built-in remote sense function
No load power consumption<0.5W (Note.6)
5 years warranty

Specifications

MSP-300-5Specifications from the official datasheet (2026-02-09 edition)

OUTPUT

DC VOLTAGE: 5V
RATED CURRENT: 60A
CURRENT RANGE: 0 ~ 60A
RATED POWER: 300W
RIPPLE & NOISE (max.)^Note.2: 90mVp-p
VOLTAGE ADJ. RANGE: 4.3 ~ 5.8V
VOLTAGE TOLERANCE^Note.3: ±2.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±1.0%
SETUP, RISE TIME: 1000ms, 50ms/230VAC 2500ms, 50ms/115VAC at full load
HOLD UP TIME (Typ.): 16ms/230VAC 16ms/115VAC at full load

INPUT

VOLTAGE RANGE^Note.5: 85 ~ 264VAC 120 ~ 370VDC
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR (Typ.): PF>0.95/230VAC PF>0.99/115VAC at full load
EFFICIENCY (Typ.): 82%
AC CURRENT (Typ.): 4.5A/115VAC 2.25A/230VAC
INRUSH CURRENT (Typ.): 35A/115VAC 70A/230VAC
LEAKAGE CURRENT: Earth leakage current < 450μA/264VAC , Touch leakage current < 100μA/264VAC

PROTECTION

OVERLOAD: 105 ~ 135% rated output power Protection type : Constant current limiting, recovers automatically after fault condition is removed
OVER VOLTAGE: 6 ~ 7V 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

5V STANDBY: 5VSB : 5V@0.3A ; tolerance±5%, ripple : 50mVp-p(max.)
DC OK SIGNAL: PSU turns on : 3.3 ~ 5.6V ; PSU turns off : 0 ~ 1V
REMOTE CONTROL: RC+ / RC-: 4 ~ 10V or open = power on ; 0 ~ 0.8V or short = power off
FAN CONTROL (Typ.): Load 35±15% or RTH2≧50℃ Fan on

ENVIRONMENT

WORKING TEMP.: -40 ~ +70℃ (Refer to "Derating Curve")
WORKING HUMIDITY: 20 ~ 90% 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 4)

SAFETY STANDARDS: IEC 60601-1:2005+A1+A2, ANSI/AAMI ES60601-1:2005+A2, CAN/CSA C22.2 No. 60601-1:2014+A2 EAC TP TC 004 approved; Design refer to BS EN/EN60335-1, BS EN/EN 62368-1(by request)
ISOLATION LEVEL: Primary-Secondary: 2×MOOP, Primary-Earth: 1×MOOP
WITHSTAND VOLTAGE: I/P-O/P:4KVAC 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: Compliance to BS EN/EN55011 (CISPR11) Class B, 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, BS EN/ EN60601-1-2 , EAC TP TC 020

OTHERS

MTBF: 1337.5K hrs min. Telcordia SR-332 (Bellcore) ; 175.8K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 199*105*41mm (L*W*H)
PACKING: 0.95Kg;15pcs/15.3Kg/0.83CUFT

Test conditions and notes7

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 0.1μF & 47μF parallel capacitor.
3. Tolerance : includes set up tolerance, line regulation and load regulation.
4. 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 )
5. Derating may be needed under low input voltages. Please check the derating curve for more details.
6. No load power consumption<0.5W when RC- & RC+ (CN100 pin4,6) 0 ~ 8V or short.
7. 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).

Technical drawings

MSP-300-5 Mechanical Specification — Mechanical Specification

MSP-300-5 Derating Curve — Derating Curve

MSP-300-5 M S P - 3 0 0 series — M S P - 3 0 0 series

MSP-300-5 2.DC-OK Signal — 2.DC-OK Signal

MSP-300-5 3.Remote Control — 3.Remote Control

Downloads

Datasheet1

MSP-300-5 datasheetMSP-300-SPEC.PDF · 2026-02-09 edition PDF Download

Certificates3

UL Certificate(MSP-300)(EN) PDF Download

CB Certificate(MSP-300)(EN) PDF Download

EMC Certificate(MSP-300)(EN) PDF Download

Test reports1

Test Report(MSP-300-5)(EN) PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the MSP-300-5 for a high-current 5V industrial control system?

Yes, this model is a constant voltage 5V supply rated for 300W and 60A. That makes it suitable for industrial or automation equipment that specifically requires a regulated 5V DC bus with relatively high current demand.

Is the MSP-300-5 suitable for 5V embedded computing or SBC clusters?

It can be a fit for embedded or computing loads that require a 5V constant voltage source and need up to 60A total output current. Buyers should match the combined load to the 300W, 5V, and 60A ratings rather than treating it as a general-purpose multi-voltage supply.

Can the MSP-300-5 be used for 5V automation I/O or logic-heavy equipment?

Yes, if the equipment is designed for a 5V constant voltage input, this supply provides up to 300W and 60A. That profile fits applications where a large number of 5V control or logic loads are powered from one DC source.

Is the MSP-300-5 appropriate for indoor panels in hot or cold industrial environments?

Its operating temperature range is -40°C to +70°C, with output derating required per the datasheet's derating curve, which supports use across a wide range of indoor industrial conditions. The provided specs do not list an IP rating, so the environment decision should be based on protected indoor use rather than exposed outdoor placement.

How does the MSP-300-5 compare with the other 5V MSP series models?

This datasheet covers the MSP-300 series, in which the MSP-300-5 is the only 5V model, rated 300W and 60A with a 4.3-5.8V adjustment range. The other MSP-300 versions cover 3.3V to 48V; only the MSP-300-3.3 matches its 60A, at a lower 198W.

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Mean Well MSP-300-5 Power Supply 300W 5V 60A

Overview

Features

Specifications

OUTPUT

INPUT

PROTECTION

FUNCTION

ENVIRONMENT

SAFETY & EMC (Note 4)

OTHERS

Technical drawings

Downloads

Datasheet1

Certificates3

Test reports1

Catalogues1

FAQ

Payment & Security

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Mean Well MSP-300-5 Power Supply 300W 5V 60A

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