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Mean Well MSP-300-15 Power Supply 330W 15V 22A

Name: Mean Well MSP-300-15 Power Supply 330W 15V 22A
Brand: Mean Well
SKU: MSP-300-15
Price: 138.77 USD
Availability: InStock

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

SKU MSP-300-15

$138.77 USD

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Select model — 6 in this family

MSP-300-15

MSP-100-15 100W 15V Backorder$62.05 USD

MSP-200-15 200W 15V Backorder$100.89 USD

MSP-300-15 300W 15V Low stock$138.77 USD

MSP-450-15 450W 15V In stock$189.87 USD

MSP-600-15 600W 15V Backorder$211.91 USD

MSP-1000-15 1000W 15V Low stock$261.06 USD

Product variants

In stock

Overview

MSP-300-15 is the 15V output model of this series: rated current 22A, rated power 330W, typical efficiency 88%.

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-300-15Specifications from the official datasheet (2026-02-09 edition)

OUTPUT

DC VOLTAGE: 15V
RATED CURRENT: 22A
CURRENT RANGE: 0 ~ 22A
RATED POWER: 330W
RIPPLE & NOISE (max.)^Note.2: 150mVp-p
VOLTAGE ADJ. RANGE: 13.5 ~ 18V
VOLTAGE TOLERANCE^Note.3: ±1.0%
LINE REGULATION: ±0.3%
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.): 88%
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: 18.8 ~ 21.8V 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-300-15 Mechanical Specification — Mechanical Specification

MSP-300-15 Block Diagram — Block Diagram

MSP-300-15 Derating Curve — Derating Curve

MSP-300-15 M S P - 3 0 0 series — M S P - 3 0 0 series

MSP-300-15 2.DC-OK Signal — 2.DC-OK Signal

MSP-300-15 3.Remote Control — 3.Remote Control

Downloads

Datasheet1

MSP-300-15 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-300-15)(EN) PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the MSP-300-15 for a 15V industrial control system?

Yes, this model is a constant voltage 15V supply rated for 330W and 22A. It fits 15V industrial control loads that need a regulated DC output within that power and current range.

Is the MSP-300-15 suitable for 15V medical or laboratory equipment?

It can be a fit for 15V equipment where a 330W, 22A constant voltage source is required. The unit is a medical type supply to IEC 60601-1 and ANSI/AAMI ES60601-1, and is EAC TP TC 004 approved.

Can this power supply run a 15V embedded or test bench system with multiple DC loads?

Yes, if the system needs a regulated 15V rail and the total load stays within 330W and 22A. Its 85-264VAC input also supports use across a wide AC input range.

Is the MSP-300-15 meant for indoor or outdoor environments?

The provided specs list an operating temperature range of -40°C to +70°C, with output derating required per the datasheet's derating curve, but no IP rating is provided. That means temperature capability is broad, while outdoor or washdown suitability should not be assumed from these specs alone.

How does the MSP-300-15 compare with the other MSP-300 models?

Within the MSP-300 group, the available outputs are 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. The main selection difference is the required output voltage and the corresponding current available at that model's power rating.

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Mean Well MSP-300-15 Power Supply 330W 15V 22A

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-300-15 Power Supply 330W 15V 22A

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