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Mean Well LOP-200-54 200W 4"×2" Low Profile Open Frame Power Supply 54V 2.7A

conventional 140W200W if using fanhigh frequency up to 94%

SKU LOP-200-54

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Overview

LOP-200-54 is the 54V output model of this series: typical efficiency 94%.

The LOP-200 is a 200W highly reliable, energy-efficient, low-profile open frame type power supply. With a high power density of 25W/in³ within the standard size of 4" × 2", it features a universal input voltage range of 80~264VAC, making it suitable for global applications. The series offers a comprehensive selection of standard voltages, including 12V/15V/18V/24V/27V/36V/48V/54V, and comes in a complete range of models. The main features of the LOP-200 include: low standby power (<0.5W), high efficiency (up to 94%), capable of providing 140W under natural air cooling and 200W with an additional fan. It has a 150% @ 3 seconds peak load capacity, a wide operating temperature range of -40 to +80℃, compliance with OVC III, suitable for Class I (with FG) or Class II (without FG) systems. The product has obtained multiple safety certifications, including 62368-1/60601-1/61558-1/60335-1, and is designed to meet 2xMOPP and extremely low touch leakage current <70 μ A, making it suitable for BF class medical devices. With high product safety and excellent EMC performance, it is versatile and applicable in various fields such as ITE, medical, industrial control, home automation and more. It is a cost-effective slim open frame type power supply.

Features

MEAN WELL Patent Number: ZL 202223277512.1
4"×2" compact size with low profile (25.4mm)
80~264Vac input with PFC, No load power consumption<0.5W
Global certificates in multi-fields (ITE 62368-1, Medical 60601-1, Household 60335-1, Industrial 61558-1/-2-16)
150%peak load @ 3s
140W convection, 200W with FAN 10.98CFM forced-cooled
Suitable for Class Ⅰ or Class Ⅱ installations
Over voltage category Ⅲ (OVC Ⅲ)
-40 ~ +80℃ wide range operation temperature
High efficiency up to 94%
Protections: Short circuit / Overload / Over voltage / Over temperature
Extremely low leakage current, 2 x MOPP, suitable for BF medical applications
Operating altitude up to 5000 meters
Built-in 12V/0.5A for external FAN
3 years warranty

Specifications

LOP-200-54Specifications from the official datasheet (2026-09-02 edition)

OUT PUT

DC VOLTAGE: 54V
CURRENT Peak(3sec.): 5.6A
CURRENT 10.98CFM: 3.8A
CURRENT Convection: 2.7A
RATED POWER Peak(3sec.): 302.4W
RATED POWER 10.98CFM: 205.2W
RATED POWER Convection: 145.8W
RIPPLE & NOISE (max.)^Note.2: 250mVp-p
VOLTAGE ADJ. RANGE (MAIN OUTPUT): 52 ~58V
VOLTAGE TOLERANCE^Note.3: ±1.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±1.0%
SETUP, RISE TIME: 1000ms, 30ms/230Vac 1500ms, 30ms/115Vac at full load
HOLD UP TIME (Typ.): 16ms@140W load , 8ms@200W load

INPUT

VOLTAGE RANGE^Note.4: 80 ~ 264Vac 113 ~ 370Vdc
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR: PF>0.95/230Vac PF>0.98/115Vac at full load
EFFICIENCY (Typ.): 94%
AC CURRENT (Typ.): 2.5A/115Vac 1A/230Vac
INRUSH CURRENT (Typ.): COLD START 40A/115Vac 80A/230Vac
LEAKAGE CURRENT: ClassⅠ: Earth leakage current < 500 μA (rms) @ 264Vac , touch current < 70μA (rms) @ 264Vac ClassⅡ: Touch current < 100 μA (rms) @ 264Vac

PROTECTION

OVERLOAD: 105 ~ 180% rated output power, Protection type : Hiccup after 3 sec, recovers automatically(3 sec) after fault condition is removed
OVER VOLTAGE: 59.4 ~ 67.5V 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 or re-power on to recover

FUNCTION

EXTERNAL FAN SUPPLY: 12V@0.5A for driving a fan (10.98CFM) / 12V@0.1A without fan ; Tolerance -20% ~ +15% at main output 20% rated current

ENVIRONMENT

WORKING TEMP.: -40 ~ +80℃ (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, 2G 10min./1cycle, 60min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDS^Note.5: CB IEC62368-1, IEC60335-1, IEC61558-1/-2-16, IEC60601-1; TUV BS EN/EN62368-1, BS EN/EN60335-1, BS EN/EN61558-1/-2-16, BS EN/EN60601-1(3.2 Version); UL UL62368-1, ANSI / AAMI ES60601-1(3.2 Version) ; CCC GB4943.1 ; RCM AS/NZS 61558-1/-2-16; EAC TPTC 004 approved.
ISOLATION RESISTANCE: Primary-Secondary: 2xMOPP, Primary-Earth:1xMOPP, Secondary-Earth:1xMOPP
OVER VOLTAGE CATEGORY: IEC/EN 61558-1/-2-16(OVC Ⅲ, altitude up to 2000M ) IEC/EN/UL 62368-1 (OVC Ⅱ, altitude up to 5000M ) IEC/EN 60335-1 (OVC Ⅱ, altitude up to 5000M ) IEC/EN 60601-1 (OVC Ⅱ, altitude up to 4000M )
PROTECTIVE EXTRA-LOW VOLTAGE: IEC/EN61558-2-16 (SELV, 12~48V ) IEC/EN/UL 62368-1 (SELV / ES1,12~48V )
WITHSTAND VOLTAGE: I/P-O/P:4KVac 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 & Radiated BS EN/EN55032(CISPR32) BS EN/EN55011(CISPR11) ClassⅠ: Class B , Class Ⅱ: Class A
Conducted & Radiated BS EN/EN55014(CISPR32) ClassⅠ: 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/ EN61000-6-2

Parameter Standard Test Level

ESD BS EN/EN61000-4-2 Level 4, 15KV air; Level 4, 8KV contact
Radiated Susceptibility BS EN/EN61000-4-3 Level 3, 10V/m( 80MHz~2.7GHz ) Table 9, 9~28V/m( 385MHz~5.78GHz )
EFT/Burest BS EN/EN61000-4-4 Level 3, 2KV
Surge BS EN/EN61000-4-5 Level 4, 4KV/Line-FG; 2KV/Line-Line
Conducted BS EN/EN61000-4-6 Level 3, 10V
Magnetic Field BS EN/EN61000-4-8 Level 4, 30A/m
Voltage Dips and interruptions BS EN/EN61000-4-11 ＞95% dip 0.5 periods, 100% dip 1 periods, 30% dip 25 periods, ＞95% interruptions 250 periods

Parameter	Standard	Test Level
Conducted & Radiated	BS EN/EN55032(CISPR32) BS EN/EN55011(CISPR11)	ClassⅠ: Class B , Class Ⅱ: Class A
Conducted & Radiated	BS EN/EN55014(CISPR32)	ClassⅠ: 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 Susceptibility	BS EN/EN61000-4-3	Level 3, 10V/m( 80MHz~2.7GHz ) Table 9, 9~28V/m( 385MHz~5.78GHz )
EFT/Burest	BS EN/EN61000-4-4	Level 3, 2KV
Surge	BS EN/EN61000-4-5	Level 4, 4KV/Line-FG; 2KV/Line-Line
Conducted	BS EN/EN61000-4-6	Level 3, 10V
Magnetic Field	BS EN/EN61000-4-8	Level 4, 30A/m
Voltage Dips and interruptions	BS EN/EN61000-4-11	＞95% dip 0.5 periods, 100% dip 1 periods, 30% dip 25 periods, ＞95% interruptions 250 periods

OTHERS

MTBF: 2928.9K hrs min. Telcordia SR-332 (Bellcore) ; 393.9K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 101.6*50.8* 25.4mm (L*W*H)
PACKING: 0.21Kg; 36pcs/10Kg/0.95CUFT

Test conditions and notes5

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. Derating may be needed under low input voltages. Please check the derating curve for more details.
5. 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)

Technical drawings

LOP-200-54 LOP-200 series (2) — LOP-200 series (2)

LOP-200-54 Derating Curve — Derating Curve

LOP-200-54 Output Derating VS Input Voltage — Output Derating VS Input Voltage

LOP-200-54 Mechanical Specification — Mechanical Specification

Typical applications

Industrial automation machinery/ control system
Security system
Mechanical and electrical equipment
Electronic instruments, equipments or apparatus
Network equipment
Telecom devices
Power sourcing equipment of PoE
Home automation
Medical devices

Downloads

Datasheet1

LOP-200-54 datasheetLOP-200-SPEC.PDF · 2026-09-02 edition PDF Download

FAQ

What applications is the Mean Well LOP-200-54 best suited for?

The LOP-200-54 is a 54V open frame AC/DC power supply designed for OEM equipment that needs a compact internal power solution. Its certifications across ITE, medical, household, and industrial standards make it a strong fit for regulated equipment builds where a low-profile 54V supply is required.

How compact is the LOP-200-54 for space-constrained designs?

This model uses a 4 x 2 inch footprint and a 25.4 mm low-profile height. Mean Well lists the dimensions as 101.6 x 50.8 x 25.4 mm, which makes it easier to use in equipment with limited internal space than larger enclosed power supplies.

Can the LOP-200-54 deliver the full 200W without extra airflow?

Not in convection-only operation. Mean Well rates it for 140W with convection cooling and up to 200W with 10.98 CFM forced air, so the cooling method matters if your equipment needs the full output rating.

Is the LOP-200-54 suitable for medical equipment applications?

This model is approved to IEC/EN 60601-1 and ANSI/AAMI ES60601-1 (3.2 version) and is specified with 2 x MOPP isolation between primary and secondary. Buyers still need to confirm the complete end equipment design and certification path, but this supply is clearly positioned for medical-capable use.

What protection features are built into the LOP-200-54?

The LOP-200-54 includes overload, overvoltage, and overtemperature protection. Mean Well specifies overload protection at 105 to 180 percent of rated output power in hiccup mode, and a peak rating of 5.6A (302.4W) for 3 seconds, which helps with brief demand spikes in the end application.

What makes the LOP-200-54 different from a standard general-purpose open frame power supply?

This model combines a compact low-profile form factor with active PFC, up to 94 percent efficiency, operation from -40 to +80 degrees C, and support for Class I or Class II installations. It also carries an unusually broad set of approvals across 62368-1, 60335-1, 61558-1/-2-16, and 60601-1, which makes it more versatile than many single-market power supplies.

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Model	Power	Voltage	Current
Mean Well LOP-200-48 200W 4"×2" Low Profile Open Frame Power Supply 48V 3A	144W	48V	3A	View
Mean Well LOP-200-36 200W 4"×2" Low Profile Open Frame Power Supply 36V 3.9A	140.4W	36V	3.9A	View
Mean Well LOP-200-27 200W 4"×2" Low Profile Open Frame Power Supply 27V 5.3A	143.1W	27V	5.3A	View
Mean Well LOP-200-24 200W 4"×2" Low Profile Open Frame Power Supply 24V 5.9A	141.6W	24V	5.9A	View
Mean Well LOP-200-18 200W 4"×2" Low Profile Open Frame Power Supply 18V 7.8A	140.4W	18V	7.8A	View
Mean Well LOP-200-15 200W 4"×2" Low Profile Open Frame Power Supply 15V 9.4A	141W	15V	9.4A	View
Mean Well LOP-200-12 200W 4"×2" Low Profile Open Frame Power Supply 12V 11.7A	140.4W	12V	11.7A	View

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