MEAN WELL LPH-18 series: constant voltage LED power supply - LPH-18-24

Description

MEAN WELL LPH-18-24 Constant Voltage LED Power Supply

The MEAN WELL LPH-18-24 is a single-output constant voltage LED power supply with 24 V DC, 0.75 A rated output and 18 W catalog rated power. It uses a fully encapsulated, isolated IP67 plastic enclosure and free-air convection cooling. Select this exact output and input version, and apply the operating limits below.

Download MEAN WELL LPH-18 Datasheet (PDF)

Download MEAN WELL LED Installation Manual (PDF)

Model specifications: PDF page 1; wiring and derating: page 2.

Model selection and application

Parameter Details
Full model / series LPH-18-24 / LPH-18
Model code LPH-18 identifies the series; the final code 24 denotes 24 V output. Use the actual power below, not the series number, for load sizing.
Load selection Use a load designed for 24 V constant voltage. Keep current within 0-0.75 A and power within the catalog rating, with derating applied.
Intended use Suitable for LED-related fixtures or appliances such as decoration or advertising devices. The manufacturer states that this product is not intended for LED applications in the EU and China. The installation manual additionally limits this series to devices whose primary use differs from lighting (for example copiers or overhead projectors), or scale and display lighting.

Output and dynamic performance

Parameter Details
DC output / current 24 V; rated current 0.75 A; current range 0-0.75 A.
Catalog rated power 18 W. Apply all current and derating limits.
Ripple and noise, maximum 150 mV peak-to-peak; measured at 20 MHz bandwidth using 12-inch twisted-pair leads with parallel 0.1 µF and 47 µF capacitors.
Voltage tolerance / regulation Tolerance ±3.0%; line regulation ±1.0%; load regulation ±2.0%. Tolerance includes setup, line and load regulation.
Setup / rise and hold-up 1500 ms setup / 30 ms rise at 230 VAC. Typical hold-up: 50 ms at 230 VAC, full load.
Measurement basis 230 VAC input, rated load and 25°C ambient unless specified otherwise. Typical values vary with operating conditions.

Input and electrical planning

Parameter Details
Rated input 180-264 VAC, 47-63 Hz; 254-370 VDC.
AC input current / efficiency 0.3 A at 230 VAC; typical efficiency 82% at catalog conditions.
Cold-start inrush, typical 50 A at 230 VAC; 155 µs pulse width measured at 50% of peak.
Leakage current 0.25 mA at 240 VAC.
Input derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 190 VAC; 100% from 190 to 264 VAC. Also apply the thermal limit; input and temperature limits are not independent allowances.
16 A breaker reference At 230 VAC, the catalog lists 17 units on Type B or 28 units on Type C 16 A circuit breakers. Assess the actual installation and circuit conditions.

Protection behavior

Parameter Details
Short circuit Short-circuit protection is listed in the model features.
Overload Above 105% of rated output power; hiccup mode, automatic recovery after fault removal.
Overvoltage 27.6-32.4 V; output shutdown with zener-diode clamping.
Overtemperature Hiccup mode, automatic recovery after temperature falls.

Environment and derating

Parameter Details
Working temperature -30 to +70°C.
Cooling / load derating Free-air convection in the horizontal orientation shown. Full load through +50°C, then linear derating to 60% at +70°C.
Humidity and storage 20-90% RH working, non-condensing. Storage: -40 to +80°C, 10-95% RH.
Temperature coefficient / vibration ±0.03%/°C over 0 to 50°C. Vibration: 10-500 Hz, 2 G; 10 min/cycle and 60 min along each X, Y and Z axis.
IP67 enclosure and exposure Fully encapsulated plastic enclosure; suitable for indoor use or outdoor use without direct sunlight exposure. Do not immerse or operate the supply in water, as required by the installation manual. Provide the required protection for the completed wiring; IP67 is not unconditional outdoor permission.

Wiring, dimensions and installation

Parameter Details
Dimensions / mounting 140 x 30 x 22 mm (L x W x H); drawing tolerance ±1 mm. Two Ø3.6 mm mounting features. Use the drawing to position mounting hardware.
Input leads UL 1015, 18 AWG, 300 ±20 mm. Brown = AC/L; blue = AC/N, as shown in this model drawing.
Output leads UL 1015, 18 AWG, 300 ±20 mm. Red = +V; black = -V. Observe load polarity.
Insulation / installation Class II design with no FG connection. Before installation or maintenance, disconnect from the utility and prevent inadvertent reconnection. Keep ventilation clear and do not stack objects on the supply. Maintain 10-15 cm clearance when an adjacent device is a heat source. Nonstandard orientation or high ambient temperature requires output-current derating. Select approved primary and secondary cables rated at least for the unit current. Provide system-level insulation and isolation around interconnections; cover single-insulated wires with the system enclosure. Do not open the case. Have faults examined by a qualified technician; damaged external cables must be replaced by the manufacturer, its service agent or a similarly qualified person.
DC input wiring Rated DC input: 254-370 VDC. Before DC connection, verify the manufacturer polarity instructions for this exact model; do not infer the L/N-to-positive/negative mapping from another series.
Case-temperature point The mechanical drawing marks the T case / tc measurement location. The adjacent location dimensions are not maximum temperature values.
Connection items This is a lead-wired module. Choose suitable connection and mounting hardware for the final equipment from the wire and mechanical requirements above.

Standards and manufacturer references

Parameter Details
Listed approvals IEC/BS EN/EN 62368-1, BIS IS 15885, EAC TP TC 004, IP67.
Classification / qualifications Class II insulation design; LPS. Class II and Class 2 are separate classifications. UL 1310 Class 2 and CAN/CSA No.223-M91 are design references only; the datasheet does not list them as approvals.
Electrical isolation Input-to-output withstand: 3 kVAC. Insulation resistance: >100 MΩ at 500 VDC, 25°C and 70% RH.
EMC emissions Compliance listed to BS EN/EN 55032 (CISPR 32) Class B, BS EN/EN 61000-3-2 Class A, BS EN/EN 61000-3-3 and EAC TP TC 020.
EMC immunity Compliance listed to BS EN/EN 55035, BS EN/EN 61000-4-2, -3, -4, -5, -6, -8 and -11, light-industry level, and EAC TP TC 020.
Final-equipment assessment The supply is a component. EMC depends on the load, wiring and final enclosure; the equipment manufacturer must re-qualify the completed installation.
Catalog mass 175 g per unit (0.175 kg), from the PACKING field. This is the catalog packing reference, not a measured net weight or a complete shipping-package weight.
Reliability references Minimum MTBF: 7827.3 thousand hours per Telcordia SR-332 (Bellcore); 1311.1 thousand hours per MIL-HDBK-217F at 25°C. These statistical references are not service-life guarantees.
Manufacturer statements 100% full-load burn-in test and two-year warranty are listed in the manufacturer datasheet.
Block-diagram frequency 60 kHz switching oscillator frequency as shown in the block diagram; not a dimming interface specification.
Regional markings The datasheet notes that products sourced from China may not carry the BIS logo; verify the actual unit marking.

MEAN WELL LPH-18 series: constant voltage LED power supply - LPH-18-24

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MEAN WELL LPH-18-24 Constant Voltage LED Power Supply The MEAN WELL LPH-18-24 is a single-output constant voltage LED power supply... Read more

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    Description

    MEAN WELL LPH-18-24 Constant Voltage LED Power Supply

    The MEAN WELL LPH-18-24 is a single-output constant voltage LED power supply with 24 V DC, 0.75 A rated output and 18 W catalog rated power. It uses a fully encapsulated, isolated IP67 plastic enclosure and free-air convection cooling. Select this exact output and input version, and apply the operating limits below.

    Download MEAN WELL LPH-18 Datasheet (PDF)

    Download MEAN WELL LED Installation Manual (PDF)

    Model specifications: PDF page 1; wiring and derating: page 2.

    Model selection and application

    Parameter Details
    Full model / series LPH-18-24 / LPH-18
    Model code LPH-18 identifies the series; the final code 24 denotes 24 V output. Use the actual power below, not the series number, for load sizing.
    Load selection Use a load designed for 24 V constant voltage. Keep current within 0-0.75 A and power within the catalog rating, with derating applied.
    Intended use Suitable for LED-related fixtures or appliances such as decoration or advertising devices. The manufacturer states that this product is not intended for LED applications in the EU and China. The installation manual additionally limits this series to devices whose primary use differs from lighting (for example copiers or overhead projectors), or scale and display lighting.

    Output and dynamic performance

    Parameter Details
    DC output / current 24 V; rated current 0.75 A; current range 0-0.75 A.
    Catalog rated power 18 W. Apply all current and derating limits.
    Ripple and noise, maximum 150 mV peak-to-peak; measured at 20 MHz bandwidth using 12-inch twisted-pair leads with parallel 0.1 µF and 47 µF capacitors.
    Voltage tolerance / regulation Tolerance ±3.0%; line regulation ±1.0%; load regulation ±2.0%. Tolerance includes setup, line and load regulation.
    Setup / rise and hold-up 1500 ms setup / 30 ms rise at 230 VAC. Typical hold-up: 50 ms at 230 VAC, full load.
    Measurement basis 230 VAC input, rated load and 25°C ambient unless specified otherwise. Typical values vary with operating conditions.

    Input and electrical planning

    Parameter Details
    Rated input 180-264 VAC, 47-63 Hz; 254-370 VDC.
    AC input current / efficiency 0.3 A at 230 VAC; typical efficiency 82% at catalog conditions.
    Cold-start inrush, typical 50 A at 230 VAC; 155 µs pulse width measured at 50% of peak.
    Leakage current 0.25 mA at 240 VAC.
    Input derating At 60 Hz: 80% load at 180 VAC, rising to 100% at 190 VAC; 100% from 190 to 264 VAC. Also apply the thermal limit; input and temperature limits are not independent allowances.
    16 A breaker reference At 230 VAC, the catalog lists 17 units on Type B or 28 units on Type C 16 A circuit breakers. Assess the actual installation and circuit conditions.

    Protection behavior

    Parameter Details
    Short circuit Short-circuit protection is listed in the model features.
    Overload Above 105% of rated output power; hiccup mode, automatic recovery after fault removal.
    Overvoltage 27.6-32.4 V; output shutdown with zener-diode clamping.
    Overtemperature Hiccup mode, automatic recovery after temperature falls.

    Environment and derating

    Parameter Details
    Working temperature -30 to +70°C.
    Cooling / load derating Free-air convection in the horizontal orientation shown. Full load through +50°C, then linear derating to 60% at +70°C.
    Humidity and storage 20-90% RH working, non-condensing. Storage: -40 to +80°C, 10-95% RH.
    Temperature coefficient / vibration ±0.03%/°C over 0 to 50°C. Vibration: 10-500 Hz, 2 G; 10 min/cycle and 60 min along each X, Y and Z axis.
    IP67 enclosure and exposure Fully encapsulated plastic enclosure; suitable for indoor use or outdoor use without direct sunlight exposure. Do not immerse or operate the supply in water, as required by the installation manual. Provide the required protection for the completed wiring; IP67 is not unconditional outdoor permission.

    Wiring, dimensions and installation

    Parameter Details
    Dimensions / mounting 140 x 30 x 22 mm (L x W x H); drawing tolerance ±1 mm. Two Ø3.6 mm mounting features. Use the drawing to position mounting hardware.
    Input leads UL 1015, 18 AWG, 300 ±20 mm. Brown = AC/L; blue = AC/N, as shown in this model drawing.
    Output leads UL 1015, 18 AWG, 300 ±20 mm. Red = +V; black = -V. Observe load polarity.
    Insulation / installation Class II design with no FG connection. Before installation or maintenance, disconnect from the utility and prevent inadvertent reconnection. Keep ventilation clear and do not stack objects on the supply. Maintain 10-15 cm clearance when an adjacent device is a heat source. Nonstandard orientation or high ambient temperature requires output-current derating. Select approved primary and secondary cables rated at least for the unit current. Provide system-level insulation and isolation around interconnections; cover single-insulated wires with the system enclosure. Do not open the case. Have faults examined by a qualified technician; damaged external cables must be replaced by the manufacturer, its service agent or a similarly qualified person.
    DC input wiring Rated DC input: 254-370 VDC. Before DC connection, verify the manufacturer polarity instructions for this exact model; do not infer the L/N-to-positive/negative mapping from another series.
    Case-temperature point The mechanical drawing marks the T case / tc measurement location. The adjacent location dimensions are not maximum temperature values.
    Connection items This is a lead-wired module. Choose suitable connection and mounting hardware for the final equipment from the wire and mechanical requirements above.

    Standards and manufacturer references

    Parameter Details
    Listed approvals IEC/BS EN/EN 62368-1, BIS IS 15885, EAC TP TC 004, IP67.
    Classification / qualifications Class II insulation design; LPS. Class II and Class 2 are separate classifications. UL 1310 Class 2 and CAN/CSA No.223-M91 are design references only; the datasheet does not list them as approvals.
    Electrical isolation Input-to-output withstand: 3 kVAC. Insulation resistance: >100 MΩ at 500 VDC, 25°C and 70% RH.
    EMC emissions Compliance listed to BS EN/EN 55032 (CISPR 32) Class B, BS EN/EN 61000-3-2 Class A, BS EN/EN 61000-3-3 and EAC TP TC 020.
    EMC immunity Compliance listed to BS EN/EN 55035, BS EN/EN 61000-4-2, -3, -4, -5, -6, -8 and -11, light-industry level, and EAC TP TC 020.
    Final-equipment assessment The supply is a component. EMC depends on the load, wiring and final enclosure; the equipment manufacturer must re-qualify the completed installation.
    Catalog mass 175 g per unit (0.175 kg), from the PACKING field. This is the catalog packing reference, not a measured net weight or a complete shipping-package weight.
    Reliability references Minimum MTBF: 7827.3 thousand hours per Telcordia SR-332 (Bellcore); 1311.1 thousand hours per MIL-HDBK-217F at 25°C. These statistical references are not service-life guarantees.
    Manufacturer statements 100% full-load burn-in test and two-year warranty are listed in the manufacturer datasheet.
    Block-diagram frequency 60 kHz switching oscillator frequency as shown in the block diagram; not a dimming interface specification.
    Regional markings The datasheet notes that products sourced from China may not carry the BIS logo; verify the actual unit marking.

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