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Mean Well MSP-1000-48 Power Supply 1008W 48V 21A

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

SKU MSP-1000-48

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MSP-1000-48

MSP-100-48 100W 48V Backorder

MSP-1000-48 1000W 48V Backorder

MSP-200-48 200W 48V Backorder

MSP-300-48 300W 48V Backorder

MSP-450-48 450W 48V Backorder

MSP-600-48 600W 48V Backorder

Product variants

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Overview

MSP-1000-48 is the 48V output model of this series: rated current 21A, rated power 1008W, typical efficiency 94%.

MSP-1000 is a single output enclosed type AC/DC power supply delivering 1000W output power for a wide range of medical applications. The entire series operates for 90~264 VAC input voltage and supplies different output voltages between 12V and 48V that can satisfy the demands for all kinds of medical equipments. Meanwell, the circuitry design meets the international medical standards, 2x MOPP, suitable for medical electrical devices. MSP-1000 is equipped with various built-in functions such as auxiliary power, remote sense and remote on-off control, offering vast design flexibility for the purpose of using control solutions.

Features

Universal AC input / Full range
Built-in active PFC function, PF>0.95
High efficiency up to 94%
Withstand 300VAC surge input for 5 seconds
Protections: Short circuit / Overload / Over voltage / Over temperature
Medical safety approved (2×MOPP)
Suitable for BF application with appropriate system consideration
Built-in cooling fan ON-OFF control
Current sharing up to 4000W (3+1)
Built-in DC OK signal
Built-in remote ON-OFF control
Standby 5V@0.3A
Built-in remote sense function
No load power consumption<0.75W (Note.6)
5 years warranty

Specifications

MSP-1000-48Specifications from the official datasheet (2025-01-23 edition)

OUTPUT

DC VOLTAGE: 48V
RATED CURRENT: 21A
CURRENT RANGE: 0 ~ 21A
RATED POWER: 1008W
RIPPLE & NOISE (max.)^Note.2: 250mVp-p
VOLTAGE ADJ. RANGE: 46 ~ 56V
VOLTAGE TOLERANCE^Note.3: ±1.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±0.5%
SETUP, RISE TIME: 1000ms, 50ms/230VAC 2000ms, 50ms/115VAC at full load
HOLD UP TIME (Typ.): 16ms/230VAC 16ms/115VAC at full load

INPUT

VOLTAGE RANGE^Note.4: 90 ~ 264VAC(300VAC for 5 sec.) 127 ~ 370VDC
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR (Typ.): PF>0.95/230VAC PF>0.98/115VAC at full load
EFFICIENCY (Typ.): 94%
AC CURRENT (Typ.): 8.5A/115VAC 5A/230VAC
INRUSH CURRENT (Typ.): 20A/115VAC 40A/230VAC
LEAKAGE CURRENT: Earth leakage current < 360μA/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: 58 ~ 65V 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

CURRENT SHARING: Up to 4000W or (3+1) units. Please refer to the Function Manual.
REMOTE ON-OFF CONTROL: Power ON : short; Power OFF : open. Please refer to the Function Manual.
REMOTE SENSE: Compensate voltage drop on the load wiring up to 0.5V. Please refer to the Function Manual.
DC-OK SIGNAL: The TTL signal out, PSU turn on = 3.3 ~ 5.6V ; PSU turn off = 0 ~ 1V. Please refer to the Function Manual.
5V STANDBY: 5VSB : 5V@0.3A ; tolerance±5%, ripple : 50mVp-p(max.)
FAN CONTROL: Fan on/off by NTC(RT50) or 30% load min.

ENVIRONMENT

WORKING TEMP.: -40 ~ +70℃ (Refer to "Derating Curve")
WORKING HUMIDITY: 20 ~ 90% 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: 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×MOPP, Primary-Earth: 1×MOPP, Secondary-Earth: 1×MOPP
WITHSTAND VOLTAGE: I/P-O/P:4.5KVAC I/P-FG:2KVAC O/P-FG:1.5KVAC
ISOLATION RESISTANCE: I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION: Parameter Standard Test Level

Conducted BS EN/EN55011 (CISPR11) Class B
Radiated BS EN/EN55011 (CISPR11) Class B
Harmonic Current BS EN/EN61000-3-2 Class A
Voltage Flicker BS EN/EN61000-3-3
EMC IMMUNITY: BS EN/EN55035, BS EN/EN60601-1-2

Parameter Standard Test Level

ESD BS EN/EN61000-4-2 Level 4, 15KV air; Level 4, 8KV contact
Radiated BS EN/EN61000-4-3 Level 3
EFT / Burst BS EN/EN61000-4-4 Level 3
Surge BS EN/EN61000-4-5 Level 4, 2KV/Line-Line 4KV/Line-Earth
Conducted BS EN/EN61000-4-6 Level 3
Magnetic Field BS EN/EN61000-4-8 Level 4
Voltage Dips and Interruptions BS EN/EN61000-4-11 100% dip 1 periods, 30% dip 25 periods, 100% interruptions 250 periods

Parameter	Standard	Test Level
Conducted	BS EN/EN55011 (CISPR11)	Class B
Radiated	BS EN/EN55011 (CISPR11)	Class B
Harmonic Current	BS EN/EN61000-3-2	Class A
Voltage Flicker	BS EN/EN61000-3-3

Parameter	Standard	Test Level
ESD	BS EN/EN61000-4-2	Level 4, 15KV air; Level 4, 8KV contact
Radiated	BS EN/EN61000-4-3	Level 3
EFT / Burst	BS EN/EN61000-4-4	Level 3
Surge	BS EN/EN61000-4-5	Level 4, 2KV/Line-Line 4KV/Line-Earth
Conducted	BS EN/EN61000-4-6	Level 3
Magnetic Field	BS EN/EN61000-4-8	Level 4
Voltage Dips and Interruptions	BS EN/EN61000-4-11	100% dip 1 periods, 30% dip 25 periods, 100% interruptions 250 periods

OTHERS

MTBF: 850.5K hrs min. Telcordia SR-332 (Bellcore) ; 105.8K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 218*105*63.5mm (L*W*H)
PACKING: 1.53Kg;8pcs/13.3Kg/1.34CUFT

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. Length of set up time is measured at first cold start. Turning ON/OFF the power supply may lead to increase of the set up time.
6. No load power consumption<0.75W when RC+ & RC- (CN100 pin3,4) open.
7. When the input voltage is less than 40VAC, the SPS may exhibit degradation of performance. The final product manufacturers must re-confirm this deviation that does not affect basic safety or essential performance.
8. 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*700mm 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)
9. 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-1000-48 Block Diagram — Block Diagram

MSP-1000-48 Derating Curve — Derating Curve

MSP-1000-48 Function Manual — Function Manual

MSP-1000-48 M S P - 1 0 0 0 series — M S P - 1 0 0 0 series

MSP-1000-48 4.Current Sharing — 4.Current Sharing

MSP-1000-48 Mechanical Specification — Mechanical Specification

Typical applications

MRI scanner
CT and PET scanner
Medical bed
Surgery table
Medical measurement device

Downloads

Datasheet1

MSP-1000-48 datasheetMSP-1000-SPEC.PDF · 2025-01-23 edition PDF Download

Certificates4

Mean Well MSP-1000 CB-(by UL) Certificate PDF Download

Mean Well MSP-1000 EMC Certificate PDF Download

Mean Well MSP-1000 CE-dec Certificate PDF Download

Mean Well MSP-1000 UK-dec Certificate PDF Download

Test reports1

Mean Well MSP-1000-48 Test Report PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the MSP-1000-48 for a 48V industrial automation cabinet with multiple loads?

This model is a constant-voltage 48V supply rated for 1008W and 21A, so it fits 48V systems that combine several loads on one DC bus. It is better suited to higher-power 48V automation equipment than lower-output models in the series.

Is the MSP-1000-48 suitable for powering a 48V embedded or edge computing system?

It can be a fit for embedded or edge systems that require a regulated 48V DC source and have a higher total power draw, since the unit is rated for 1008W at 21A. The wide 90-264VAC input also helps when the AC source varies across sites or regions.

Can this power supply support a centralized 48V DC power bus in an IT or communications rack?

For equipment designed to run from constant-voltage 48V DC, this unit provides up to 1008W and 21A from a single supply. That makes it appropriate for centralized 48V distribution where the connected load stays within those output limits.

How does the MSP-1000-48 compare with the other MSP-1000 models?

Within the MSP-1000 group, the 12V model is 960W at 80A, the 15V model is 960W at 64A, the 24V model is 1008W at 42A, and this 48V model is 1008W at 21A. The main difference is the output voltage and matching current capacity for each version, while all are high-power members of the same series.

Is the MSP-1000-48 appropriate for harsh indoor or exposed outdoor environments?

The published operating temperature range is -40°C to +70°C, with output derating at higher ambient temperatures per the derating curve. The provided specs do not list an IP rating, so dust and water protection are not specified here.

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Model	Power	Voltage	Current
Mean Well MSP-1000-24 Power Supply 1008W 24V 42A	1008W	24V	42A	View
Mean Well MSP-1000-15 Power Supply 960W 15V 64A	960W	15V	64A	View
Mean Well MSP-1000-12 Power Supply 960W 12V 80A	960W	12V	80A	View

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