MEAN WELL LOP-600 series: Low Profile Open-Frame AC/DC Power Supply - LOP-600-12

Description

MEAN WELL LOP-600-12 is a low-profile open-frame AC/DC power supply with active PFC and a 5 × 3 inch footprint. Its 12 V output is rated at 50 A / 600 W with 23 CFM airflow, or 30 A / 360 W with natural convection, subject to input-voltage and temperature derating.

Product Datasheet

Download MEAN WELL LOP-600 Datasheet (PDF)

The LOP-600 section is on PDF pages 21, 22, 23, 24, 25. Refer to the complete mechanical drawings and notes when planning installation.

Model and Cooling Configuration

Complete model LOP-600-12.
Series LOP-600 single-output open-frame switching power supply.
Cooling Natural convection or externally provided 23 CFM airflow, with different output limits below.
Functions Active PFC, remote sense and 12 V fan supply. PG/PF power-good/power-fail signalling is optional.
Construction Class I with protective grounding, or Class II without FG, subject to the installation and EMC requirements.

Suitable applications include industrial automation and control, security, mechanical and electrical equipment, electronic instruments, network and telecommunications equipment, PoE equipment, home automation and medical devices. The series lists a power density of 30.3 W/in³.

Output Ratings

Nominal output 12 VDC.
Current with 23 CFM airflow 50 A.
Rated power with 23 CFM airflow 600 W.
Natural-convection current 30 A.
Natural-convection rated power 360 W.
Peak output, maximum 3 seconds 75 A / 900 W; not a continuous rating.
Voltage adjustment 11.4–12.6 V using SVR.
Maximum ripple and noise 120 mVp-p.
Voltage tolerance ±3%.
Line regulation ±0.5%.
Load regulation ±1%.
Typical efficiency 93%.

Observe both current and power limits for the selected cooling condition. The individual output table, input-voltage curve and thermal curves apply together.

Unless otherwise specified, parameters are measured at 230 VAC input, rated load and 25°C ambient. Ripple/noise is measured with 20 MHz bandwidth, a 12-inch twisted pair and parallel 0.1 μF and 47 μF capacitors. Voltage tolerance includes setup tolerance, line regulation and load regulation.

Input and Timing

Input voltage 80–264 VAC or 113–370 VDC.
AC frequency 47–63 Hz.
Power factor at full load Greater than 0.95 at 230 VAC; greater than 0.98 at 115 VAC.
Typical AC input current 6.4 A at 115 VAC; 3.2 A at 230 VAC.
Typical cold-start inrush 40 A at 115 VAC; 80 A at 230 VAC.
Earth leakage current Less than 500 μA rms at 264 VAC.
Touch current Less than 70 μA rms at 264 VAC.
No-load input power Less than 0.5 W.
Setup and rise at full load Setup: 1000 ms at 230 VAC / 1500 ms at 115 VAC; rise: 50 ms at either input.
Typical hold-up 12 ms at 400 W load; 8 ms at 600 W load.

The 60 Hz low-input curve permits 70% load at 80 VAC, reaches 100% at 115 VAC and remains at 100% through 264 VAC.

Protection

Short circuit and overload 105–150% of rated output power; hiccup mode after 3 seconds, with automatic recovery after the fault is removed.
Overvoltage threshold 13.2–15.6 V.
Overvoltage recovery Output shuts down; re-power on to recover.
Overtemperature Output shuts down; automatic recovery after the temperature falls, or re-power on.

Remote Sense, Fan Supply and Optional PG/PF

Remote sense Compensates up to 0.5 V of voltage drop; use the correct +R.S and −R.S polarity on CN3.
12 V fan supply 12 V at 0.5 A with 23 CFM airflow, or 0.2 A without a fan; tolerance ±15% at 20% of the main output rated current.
PG/PF option Optional power-good / power-fail signal. Confirm the required signal option before ordering.
Power-good timing TTL high after setup, with 10 ms < PG delay < 500 ms.
Power-fail timing TTL low at least 1 ms before the main output falls below 90% of its rated voltage.
PG/PF logic levels Low: 0–1 V; high: 2–5 V.

Use DC COM and the assigned signal pins. The optional PG/PF signal is not a remote on/off input, and the fan supply is not a 5 V standby output.

Environment and Thermal Derating

Operating temperature −40 to +80°C, subject to the selected cooling curve.
Operating humidity 20–90% RH, non-condensing.
Storage −40 to +85°C, 10–95% RH.
Temperature coefficient ±0.03%/°C over 0–50°C.
Vibration 10–500 Hz, 2 G; 10 minutes per cycle and 60 minutes each along X, Y and Z.
Operating altitude Up to 5000 m; the standard-specific overvoltage-category limits below must also be observed.

For horizontal mounting with 23 CFM airflow, the series curve shows 600 W through 50°C, then 450 W at 60°C, 300 W at 70°C and 220 W at 80°C.

For this output-voltage group with natural convection at 115 VAC, the curve shows 360 W through 30°C, then 300 W at 40°C, 270 W at 50°C, 220 W at 60°C and 170 W at 70°C. At 230 VAC it shows 360 W through 40°C, then 300 W at 50°C, 270 W at 60°C and 180 W at 70°C.

Natural-convection curves end at 70°C. Use the model-specific current and power limits together with these series curves, and do not extend a cooling curve beyond its plotted range.

Mechanical Installation

Overall dimensions (L × W × H) 127 × 76.2 × 35 mm.
Drawing tolerance ±1 mm.
Mounting Four Ø3.5 mm holes; 115.6 × 64.8 mm centres and 5.7 mm edge references.
Underside reference 3 mm maximum underside projection; maintain the installation clearances in the drawing.
Airflow arrangement Provide 23 CFM airflow from a fan 5 cm from the long side, in the illustrated direction. The drawing marks a 63.5 mm position reference from the right edge.
Grounding Ground the indicated safety-ground mounting holes in a Class I installation. Class II installation does not require an FG connection.
Isolation Do not short HS1 and HS2 together.

Follow the mechanical drawing on PDF page 25 for connector orientation, SVR, mounting and airflow. A required external fan or mating harness is not automatically included with the power supply.

Connections and Mating Parts

AC input CN1 JST B3P-VH or equivalent: pin 1 AC/L, pin 2 no pin, pin 3 AC/N. Mating housing: JST VHR family; terminal: JST SVH-21T-P1.1 or equivalent.
Main DC output Two M3.5 pan-head screw positions: −V at the upper position and +V at the lower position in the top-view drawing. Maximum torque: 8 lb-in (90 cNm).
Fan connector CN2 TKP 8812-2 or equivalent: pin 1 DC COM, pin 2 +12 V auxiliary. Mating housing: TKP 2502; terminal: TKP 54T(LF) or equivalent.
Sense / optional PG connector CN3 TKP DH2I-2X2 or equivalent: pin 1 −R.S, pin 2 +R.S, pin 3 DC COM, pin 4 PG when the optional signal is fitted. Mating housing: TKP DH2 family; terminal identified as TKP.

JST VHR and TKP DH2 are housing-family references. Select full ordering references for the circuit count and wire assembly shown in the drawing; confirm the compatible crimp-terminal suffix where only a family or manufacturer is specified.

Safety and Medical Integration

Listed safety approvals CB: IEC62368-1, IEC60335-1, IEC61558-1/-2-16 and IEC60601-1. TUV: BS EN/EN62368-1, 60335-1, 61558-1/-2-16 and 60601-1 (version 3.2). UL: UL62368-1 and ANSI/AAMI ES60601-1 (version 3.2). CCC: GB4943.1. RCM: AS/NZS61558-1/-2-16. EAC: TP TC004.
Means of patient protection Primary–secondary: 2 × MOPP; primary–earth: 1 × MOPP; secondary–earth: 1 × MOPP.
Overvoltage categories and altitude OVC III under IEC/EN61558-1/-2-16 up to 2000 m. OVC II under IEC/EN/UL62368-1 and IEC/EN60335-1 up to 5000 m; OVC II under IEC/EN60601-1 up to 4000 m.
SELV / ES1 scope This voltage version is within the catalogue 12–48 V listing: SELV under IEC/EN61558-2-16, and SELV/ES1 under IEC/EN/UL62368-1.
Withstand voltage Input–output: 4 kVAC; input–FG: 2 kVAC; output–FG: 1.5 kVAC.
Insulation resistance Input–output, input–FG and output–FG: 100 MΩ at 500 VDC, 25°C and 70% RH.

The series is suitable for integration in BF-type medical applications. MOPP stands for means of patient protection. Final equipment design and testing must establish the required patient protection, grounding, leakage-current and system compliance; the power supply alone does not certify the finished medical equipment.

Electromagnetic Compatibility

Conducted and radiated emissions BS EN/EN55032 (CISPR32) and BS EN/EN55011 (CISPR11): Class B with FG in a Class I installation; Class A without FG in a Class II installation. BS EN/EN55014: Class B in Class I.
Harmonics and flicker BS EN/EN61000-3-2 Class A; BS EN/EN61000-3-3.
Immunity framework BS EN/EN55035 and BS EN/EN61000-6-2.
ESD BS EN/EN61000-4-2, level 4: 15 kV air and 8 kV contact.
Radiated immunity BS EN/EN61000-4-3, level 3: 10 V/m from 80 MHz to 2.7 GHz; table 9 proximity-field tests at 9–28 V/m from 385 MHz to 5.78 GHz.
EFT and surge BS EN/EN61000-4-4, level 3: 2 kV. BS EN/EN61000-4-5, level 4: 4 kV line-to-FG and 2 kV line-to-line.
Conducted and magnetic immunity BS EN/EN61000-4-6, level 3: 10 V. BS EN/EN61000-4-8, level 4: 30 A/m.
Voltage dips and interruptions BS EN/EN61000-4-11: >95% dip for 0.5 periods, 100% for 1 period, 30% for 25 periods, and >95% interruption for 250 periods.

The EMC setup uses a 360 × 360 × 1 mm metal plate. The supply is an installation component; re-confirm safety and EMC compliance in the finished equipment.

Weight, Reliability and Catalogue

Single-unit catalogue weight 480 g (0.48 kg), explicitly listed per unit in the catalogue packing data; a packing reference, not a measured net or shipping-parcel weight.
Packing 24 pieces / 13.7 kg / 1.10 CUFT.
MTBF, minimum estimates 1963.2 thousand hours, Telcordia SR-332 (Bellcore); 310.9 thousand hours, MIL-HDBK-217F at 25°C.
Manufacturer warranty Three years, subject to applicable terms.
Catalogue LOP-600-SPEC, 2026-05-08; combined PDF pages 21–25.

MEAN WELL LOP-600 series: Low Profile Open-Frame AC/DC Power Supply - LOP-600-12

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MEAN WELL LOP-600-12 is a low-profile open-frame AC/DC power supply with active PFC and a 5 × 3 inch footprint.... Read more

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    Description

    MEAN WELL LOP-600-12 is a low-profile open-frame AC/DC power supply with active PFC and a 5 × 3 inch footprint. Its 12 V output is rated at 50 A / 600 W with 23 CFM airflow, or 30 A / 360 W with natural convection, subject to input-voltage and temperature derating.

    Product Datasheet

    Download MEAN WELL LOP-600 Datasheet (PDF)

    The LOP-600 section is on PDF pages 21, 22, 23, 24, 25. Refer to the complete mechanical drawings and notes when planning installation.

    Model and Cooling Configuration

    Complete model LOP-600-12.
    Series LOP-600 single-output open-frame switching power supply.
    Cooling Natural convection or externally provided 23 CFM airflow, with different output limits below.
    Functions Active PFC, remote sense and 12 V fan supply. PG/PF power-good/power-fail signalling is optional.
    Construction Class I with protective grounding, or Class II without FG, subject to the installation and EMC requirements.

    Suitable applications include industrial automation and control, security, mechanical and electrical equipment, electronic instruments, network and telecommunications equipment, PoE equipment, home automation and medical devices. The series lists a power density of 30.3 W/in³.

    Output Ratings

    Nominal output 12 VDC.
    Current with 23 CFM airflow 50 A.
    Rated power with 23 CFM airflow 600 W.
    Natural-convection current 30 A.
    Natural-convection rated power 360 W.
    Peak output, maximum 3 seconds 75 A / 900 W; not a continuous rating.
    Voltage adjustment 11.4–12.6 V using SVR.
    Maximum ripple and noise 120 mVp-p.
    Voltage tolerance ±3%.
    Line regulation ±0.5%.
    Load regulation ±1%.
    Typical efficiency 93%.

    Observe both current and power limits for the selected cooling condition. The individual output table, input-voltage curve and thermal curves apply together.

    Unless otherwise specified, parameters are measured at 230 VAC input, rated load and 25°C ambient. Ripple/noise is measured with 20 MHz bandwidth, a 12-inch twisted pair and parallel 0.1 μF and 47 μF capacitors. Voltage tolerance includes setup tolerance, line regulation and load regulation.

    Input and Timing

    Input voltage 80–264 VAC or 113–370 VDC.
    AC frequency 47–63 Hz.
    Power factor at full load Greater than 0.95 at 230 VAC; greater than 0.98 at 115 VAC.
    Typical AC input current 6.4 A at 115 VAC; 3.2 A at 230 VAC.
    Typical cold-start inrush 40 A at 115 VAC; 80 A at 230 VAC.
    Earth leakage current Less than 500 μA rms at 264 VAC.
    Touch current Less than 70 μA rms at 264 VAC.
    No-load input power Less than 0.5 W.
    Setup and rise at full load Setup: 1000 ms at 230 VAC / 1500 ms at 115 VAC; rise: 50 ms at either input.
    Typical hold-up 12 ms at 400 W load; 8 ms at 600 W load.

    The 60 Hz low-input curve permits 70% load at 80 VAC, reaches 100% at 115 VAC and remains at 100% through 264 VAC.

    Protection

    Short circuit and overload 105–150% of rated output power; hiccup mode after 3 seconds, with automatic recovery after the fault is removed.
    Overvoltage threshold 13.2–15.6 V.
    Overvoltage recovery Output shuts down; re-power on to recover.
    Overtemperature Output shuts down; automatic recovery after the temperature falls, or re-power on.

    Remote Sense, Fan Supply and Optional PG/PF

    Remote sense Compensates up to 0.5 V of voltage drop; use the correct +R.S and −R.S polarity on CN3.
    12 V fan supply 12 V at 0.5 A with 23 CFM airflow, or 0.2 A without a fan; tolerance ±15% at 20% of the main output rated current.
    PG/PF option Optional power-good / power-fail signal. Confirm the required signal option before ordering.
    Power-good timing TTL high after setup, with 10 ms < PG delay < 500 ms.
    Power-fail timing TTL low at least 1 ms before the main output falls below 90% of its rated voltage.
    PG/PF logic levels Low: 0–1 V; high: 2–5 V.

    Use DC COM and the assigned signal pins. The optional PG/PF signal is not a remote on/off input, and the fan supply is not a 5 V standby output.

    Environment and Thermal Derating

    Operating temperature −40 to +80°C, subject to the selected cooling curve.
    Operating humidity 20–90% RH, non-condensing.
    Storage −40 to +85°C, 10–95% RH.
    Temperature coefficient ±0.03%/°C over 0–50°C.
    Vibration 10–500 Hz, 2 G; 10 minutes per cycle and 60 minutes each along X, Y and Z.
    Operating altitude Up to 5000 m; the standard-specific overvoltage-category limits below must also be observed.

    For horizontal mounting with 23 CFM airflow, the series curve shows 600 W through 50°C, then 450 W at 60°C, 300 W at 70°C and 220 W at 80°C.

    For this output-voltage group with natural convection at 115 VAC, the curve shows 360 W through 30°C, then 300 W at 40°C, 270 W at 50°C, 220 W at 60°C and 170 W at 70°C. At 230 VAC it shows 360 W through 40°C, then 300 W at 50°C, 270 W at 60°C and 180 W at 70°C.

    Natural-convection curves end at 70°C. Use the model-specific current and power limits together with these series curves, and do not extend a cooling curve beyond its plotted range.

    Mechanical Installation

    Overall dimensions (L × W × H) 127 × 76.2 × 35 mm.
    Drawing tolerance ±1 mm.
    Mounting Four Ø3.5 mm holes; 115.6 × 64.8 mm centres and 5.7 mm edge references.
    Underside reference 3 mm maximum underside projection; maintain the installation clearances in the drawing.
    Airflow arrangement Provide 23 CFM airflow from a fan 5 cm from the long side, in the illustrated direction. The drawing marks a 63.5 mm position reference from the right edge.
    Grounding Ground the indicated safety-ground mounting holes in a Class I installation. Class II installation does not require an FG connection.
    Isolation Do not short HS1 and HS2 together.

    Follow the mechanical drawing on PDF page 25 for connector orientation, SVR, mounting and airflow. A required external fan or mating harness is not automatically included with the power supply.

    Connections and Mating Parts

    AC input CN1 JST B3P-VH or equivalent: pin 1 AC/L, pin 2 no pin, pin 3 AC/N. Mating housing: JST VHR family; terminal: JST SVH-21T-P1.1 or equivalent.
    Main DC output Two M3.5 pan-head screw positions: −V at the upper position and +V at the lower position in the top-view drawing. Maximum torque: 8 lb-in (90 cNm).
    Fan connector CN2 TKP 8812-2 or equivalent: pin 1 DC COM, pin 2 +12 V auxiliary. Mating housing: TKP 2502; terminal: TKP 54T(LF) or equivalent.
    Sense / optional PG connector CN3 TKP DH2I-2X2 or equivalent: pin 1 −R.S, pin 2 +R.S, pin 3 DC COM, pin 4 PG when the optional signal is fitted. Mating housing: TKP DH2 family; terminal identified as TKP.

    JST VHR and TKP DH2 are housing-family references. Select full ordering references for the circuit count and wire assembly shown in the drawing; confirm the compatible crimp-terminal suffix where only a family or manufacturer is specified.

    Safety and Medical Integration

    Listed safety approvals CB: IEC62368-1, IEC60335-1, IEC61558-1/-2-16 and IEC60601-1. TUV: BS EN/EN62368-1, 60335-1, 61558-1/-2-16 and 60601-1 (version 3.2). UL: UL62368-1 and ANSI/AAMI ES60601-1 (version 3.2). CCC: GB4943.1. RCM: AS/NZS61558-1/-2-16. EAC: TP TC004.
    Means of patient protection Primary–secondary: 2 × MOPP; primary–earth: 1 × MOPP; secondary–earth: 1 × MOPP.
    Overvoltage categories and altitude OVC III under IEC/EN61558-1/-2-16 up to 2000 m. OVC II under IEC/EN/UL62368-1 and IEC/EN60335-1 up to 5000 m; OVC II under IEC/EN60601-1 up to 4000 m.
    SELV / ES1 scope This voltage version is within the catalogue 12–48 V listing: SELV under IEC/EN61558-2-16, and SELV/ES1 under IEC/EN/UL62368-1.
    Withstand voltage Input–output: 4 kVAC; input–FG: 2 kVAC; output–FG: 1.5 kVAC.
    Insulation resistance Input–output, input–FG and output–FG: 100 MΩ at 500 VDC, 25°C and 70% RH.

    The series is suitable for integration in BF-type medical applications. MOPP stands for means of patient protection. Final equipment design and testing must establish the required patient protection, grounding, leakage-current and system compliance; the power supply alone does not certify the finished medical equipment.

    Electromagnetic Compatibility

    Conducted and radiated emissions BS EN/EN55032 (CISPR32) and BS EN/EN55011 (CISPR11): Class B with FG in a Class I installation; Class A without FG in a Class II installation. BS EN/EN55014: Class B in Class I.
    Harmonics and flicker BS EN/EN61000-3-2 Class A; BS EN/EN61000-3-3.
    Immunity framework BS EN/EN55035 and BS EN/EN61000-6-2.
    ESD BS EN/EN61000-4-2, level 4: 15 kV air and 8 kV contact.
    Radiated immunity BS EN/EN61000-4-3, level 3: 10 V/m from 80 MHz to 2.7 GHz; table 9 proximity-field tests at 9–28 V/m from 385 MHz to 5.78 GHz.
    EFT and surge BS EN/EN61000-4-4, level 3: 2 kV. BS EN/EN61000-4-5, level 4: 4 kV line-to-FG and 2 kV line-to-line.
    Conducted and magnetic immunity BS EN/EN61000-4-6, level 3: 10 V. BS EN/EN61000-4-8, level 4: 30 A/m.
    Voltage dips and interruptions BS EN/EN61000-4-11: >95% dip for 0.5 periods, 100% for 1 period, 30% for 25 periods, and >95% interruption for 250 periods.

    The EMC setup uses a 360 × 360 × 1 mm metal plate. The supply is an installation component; re-confirm safety and EMC compliance in the finished equipment.

    Weight, Reliability and Catalogue

    Single-unit catalogue weight 480 g (0.48 kg), explicitly listed per unit in the catalogue packing data; a packing reference, not a measured net or shipping-parcel weight.
    Packing 24 pieces / 13.7 kg / 1.10 CUFT.
    MTBF, minimum estimates 1963.2 thousand hours, Telcordia SR-332 (Bellcore); 310.9 thousand hours, MIL-HDBK-217F at 25°C.
    Manufacturer warranty Three years, subject to applicable terms.
    Catalogue LOP-600-SPEC, 2026-05-08; combined PDF pages 21–25.

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