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Mean Well LOP-200-36 200W 4"×2" Low Profile Open Frame Power Supply 36V 3.9A

conventional 140W200W with 10.98CFM forced airhigh frequency up to 94%
SKU LOP-200-36
$65.06 USD
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Overview

LOP-200-36 is the 36V 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-200-36Specifications from the official datasheet (2026-09-02 edition)

OUT PUT

DC VOLTAGE
36V
CURRENT Peak(3sec.)
8.3A
CURRENT 10.98CFM
5.6A
CURRENT Convection
3.9A
RATED POWER Peak(3sec.)
298.8W
RATED POWER 10.98CFM
201.6W
RATED POWER Convection
140.4W
RIPPLE & NOISE (max.)Note.2
250mVp-p
VOLTAGE ADJ. RANGE (MAIN OUTPUT)
34.2 ~37.8V
VOLTAGE TOLERANCENote.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 RANGENote.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
39.6 ~ 46.8V 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 STANDARDSNote.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
ParameterStandardTest Level
Conducted & RadiatedBS EN/EN55032(CISPR32) BS EN/EN55011(CISPR11)ClassⅠ: Class B , Class Ⅱ: Class A
Conducted & RadiatedBS EN/EN55014(CISPR32)ClassⅠ: Class B
Harmonic CurrentBS EN/EN61000-3-2Class A
Voltage FlickerBS EN/EN61000-3-3
EMC IMMUNITY

BS EN/EN55035,BS EN/ EN61000-6-2

ParameterStandardTest Level
ESDBS EN/EN61000-4-2Level 4, 15KV air; Level 4, 8KV contact
Radiated SusceptibilityBS EN/EN61000-4-3Level 3, 10V/m( 80MHz~2.7GHz ) Table 9, 9~28V/m( 385MHz~5.78GHz )
EFT/BurestBS EN/EN61000-4-4Level 3, 2KV
SurgeBS EN/EN61000-4-5Level 4, 4KV/Line-FG; 2KV/Line-Line
ConductedBS EN/EN61000-4-6Level 3, 10V
Magnetic FieldBS EN/EN61000-4-8Level 4, 30A/m
Voltage Dips and interruptionsBS 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. 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
  2. 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. 3. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 4. Derating may be needed under low input voltages. Please check the derating curve for more details.
  5. 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-200-36 LOP-200 series (2)
LOP-200 series (2)
LOP-200-36 Derating Curve
Derating Curve
LOP-200-36 Output Derating VS Input Voltage
Output Derating VS Input Voltage
LOP-200-36 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

FAQ

What is the output of the Mean Well LOP-200-36?

The LOP-200-36 is a 200W open frame AC-DC power supply with a 36V DC output. Its rated output current is 3.9A with convection cooling, or 5.6A with 10.98 CFM forced air. This model is designed for applications that need a regulated 36V supply in a compact 4 x 2 inch form factor.

What makes the LOP-200-36 a good choice for space-constrained equipment?

This model uses a compact 101.6 x 50.8 x 25.4 mm package, which corresponds to a 4 x 2 inch footprint with a low 25.4 mm profile. That makes it easier to fit into low-clearance or densely packed equipment designs. Its open frame format is aimed at embedded OEM and industrial-style applications where space efficiency matters.

Can the Mean Well LOP-200-36 be used in medical or safety-sensitive equipment?

The LOP-200-36 carries medical safety approvals to IEC/EN 60601-1 and ANSI/AAMI ES60601-1 and is specified with 2 x MOPP isolation between primary and secondary. It also includes approvals covering ITE, household, and industrial standards. Final system-level suitability still depends on the requirements of the end product.

How does this power supply perform in harsh temperature environments?

The specified operating temperature range is -40 C to +80 C, based on the derating curve. That wide range makes it suitable for demanding industrial and enclosed equipment environments. Buyers should still account for thermal derating and cooling conditions in the finished system.

Does the LOP-200-36 support energy-efficient operation?

Yes. It features active power factor correction, with power factor above 0.95 at 230VAC and above 0.98 at 115VAC at full load. Typical efficiency is 94%, which helps reduce wasted power and heat compared with less efficient designs.

Is the full 200W output available under all cooling conditions?

No. The product is rated for 140W under convection cooling and 200W with 10.98 CFM forced-air cooling. It also has a peak rating of 8.3A (298.8W) for 3 seconds, which can help with brief load surges.

What protection features are included in the Mean Well LOP-200-36?

This model includes overload, overvoltage, and overtemperature protection. The overload protection operates in hiccup mode after 3 seconds and recovers automatically after the fault is removed. Overvoltage and overtemperature protection shut down the output and recover as specified in the product data.

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Mean Well LOP-200-36 200W 4"×2" Low Profile Open Frame Power Supply 36V 3.9A
Mean Well

Mean Well LOP-200-36 200W 4"×2" Low Profile Open Frame Power Supply 36V 3.9A

$65.06 USD

LOP-200-36 is the 36V 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

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
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