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Mean Well MSP-300-24 Power Supply 336W 24V 14A

Name: Mean Well MSP-300-24 Power Supply 336W 24V 14A
Brand: Mean Well
SKU: MSP-300-24
Price: 138.78 USD
Availability: InStock

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

SKU MSP-300-24

$138.78 USD

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Select model — 6 in this family

MSP-300-24

MSP-100-24 100W 24V Backorder$62.03 USD

MSP-200-24 200W 24V In stock$100.85 USD

MSP-300-24 300W 24V In stock$138.78 USD

MSP-450-24 450W 24V In stock$188.46 USD

MSP-600-24 600W 24V In stock$210.75 USD

MSP-1000-24 1000W 24V Low stock$259.39 USD

Product variants

In stock

Overview

MSP-300-24 is the 24V output model of this series: rated current 14A, rated power 336W, typical efficiency 87%.

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-300-24Specifications from the official datasheet (2026-02-09 edition)

OUTPUT

DC VOLTAGE: 24V
RATED CURRENT: 14A
CURRENT RANGE: 0 ~ 14A
RATED POWER: 336W
RIPPLE & NOISE (max.)^Note.2: 150mVp-p
VOLTAGE ADJ. RANGE: 21.6 ~ 28.8V
VOLTAGE TOLERANCE^Note.3: ±1.0%
LINE REGULATION: ±0.2%
LOAD REGULATION: ±0.5%
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.): 87%
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: 30 ~ 34.8V 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-300-24 Mechanical Specification — Mechanical Specification

MSP-300-24 Block Diagram — Block Diagram

MSP-300-24 Derating Curve — Derating Curve

MSP-300-24 M S P - 3 0 0 series — M S P - 3 0 0 series

MSP-300-24 2.DC-OK Signal — 2.DC-OK Signal

MSP-300-24 3.Remote Control — 3.Remote Control

Downloads

Datasheet1

MSP-300-24 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-300-24)(EN) PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the MSP-300-24 for a 24V PLC or automation cabinet?

Yes, this is a constant voltage 24V power supply rated for 336W and 14A. It is suited to 24V automation loads that need a regulated DC source within those limits.

Is the MSP-300-24 appropriate for 24V industrial sensors, relays, and control accessories on one DC bus?

It can support grouped 24V control loads as long as the combined demand stays within 336W and 14A. The constant voltage design is intended for equipment that expects a regulated 24V output.

Can this model power a 24V embedded system or industrial PC setup?

Yes, if the platform requires 24V DC and the total draw remains at or below 336W and 14A. Its 85-264VAC input is also useful where the available AC source may vary by site.

Is the MSP-300-24 suitable for harsh temperature environments?

The specified operating range is -40°C to +70°C, with output derating required per the datasheet's derating curve, which supports use across a wide temperature span. No IP rating is listed in the provided specs, so enclosure protection for outdoor or wet areas is not defined here.

What are the key differences between the MSP-300-24 and the other MSP-300 versions?

The MSP-300 family includes MSP-300-3.3 at 198W, 3.3V, 60A; MSP-300-5 at 300W, 5V, 60A; MSP-300-7.5 at 300W, 7.5V, 40A; MSP-300-12 at 324W, 12V, 27A; MSP-300-15 at 330W, 15V, 22A; MSP-300-24 at 336W, 24V, 14A; MSP-300-36 at 324W, 36V, 9A; and MSP-300-48 at 336W, 48V, 7A. This model sits at 24V with 14A output, so it should be chosen when the load specifically requires regulated 24V DC.

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Mean Well MSP-300-24 Power Supply 336W 24V 14A

Select model — 6 in this family

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-300-24 Power Supply 336W 24V 14A

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