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MORNSUN LI15-20BxxPR3(-Q) Series: 15W AC/DC DIN Rail Mount Power Supply

  • Writer: MORNSUN POWER
    MORNSUN POWER
  • Jan 19
  • 4 min read

Product Overview

The MORNSUN LI15-20BxxPR3 series is a cost-effective, green, and highly efficient DIN rail mount power supply solution. This product is safe, reliable, and features excellent Electromagnetic Compatibility (EMC) performance. Its compact design (90.00 x 58.00 x 17.50 mm), light weight (typical 60g), and standard rail mounting save significant space. It is specifically designed for industrial control equipment, machinery, and other demanding industrial environments, providing a highly stable and noise-immune power source for continuous and reliable operation.

Key Features

  • Wide Input Voltage Range: Accepts 85 - 264VAC or 120 - 370VDC input (universal AC/DC input terminals).

  • High Robustness: Withstands up to 305VAC input for 5 seconds without damage. Features 4000VAC high isolation withstand voltage and meets Overvoltage Category III (design reference EN62477).

  • Wide Operating Temperature: Operates from -40°C to +85°C.

  • Comprehensive Protection & Low Noise: Provides output short-circuit, over-current, and over-voltage protection with Constant Voltage (CV) output characteristic. Features low ripple & noise and high efficiency.

  • Standard Mounting: Easily mounts on TS35X7.5 or TS35X15 standard DIN rails.

  • Safety & Compliance: Designed and compliant with major international safety and EMC standards, including UL/EN/BS EN62368, UL508, UL61010, IEC/EN61558, EN60335, CISPR32/EN55032, and the IEC/EN61000 series. The product is RoHS compliant.

Model Selection and Output Parameters

The LI15-20BxxPR3 series offers multiple output models. All models comply with industry-standard triple-proofing requirements; models with a "-Q" suffix feature a conformal coating. Note: The actual output voltage adjustment range may exceed the listed values, but ensure the output voltage and power do not exceed the published maximum ratings.

  • Model LI15-20B05PR3: Nominal output 5V / 2.40A. Output voltage adjustable range 4.5-6.5V. Typical efficiency (230VAC) 80%. Maximum capacitive load 2000µF.

  • Model LI15-20B12PR3: Nominal output 12V / 1.25A. Output voltage adjustable range 10.8-13.8V. Typical efficiency (230VAC) 85%. Maximum capacitive load 1500µF.

  • Model LI15-20B15PR3: Nominal output 15V / 1.00A. Output voltage adjustable range 13.5-18.0V. Typical efficiency (230VAC) 85%. Maximum capacitive load 1100µF.

  • Model LI15-20B24PR3: Nominal output 24V / 0.63A. Output voltage adjustable range 21.6-29.0V. Typical efficiency (230VAC) 86%. Maximum capacitive load 700µF.

  • Model LI15-20B48PR3: Nominal output 48V / 0.32A. Output voltage adjustable range 43.2-55.2V. Typical efficiency (230VAC) 87%. Maximum capacitive load 300µF.

Detailed Specifications

Input Characteristics

  • Input Voltage Range: 85 - 264VAC; 120 - 370VDC.

  • Input Frequency: 47 - 63 Hz.

  • Input Current (Max): 0.5A at 115VAC; 0.25A at 230VAC.

  • Inrush Current (Max): 15A at 115VAC; 25A at 230VAC.

  • Leakage Current (Max): <0.5mA at 240VAC.

  • Hot Plug-in: Not supported.

Output Characteristics

  • Output Voltage Accuracy (0% - 100% load): ±2% for 5V models; ±1% for 12V/15V/24V/48V models.

  • Line Regulation (rated load): Typical ±0.5%.

  • Load Regulation (230VAC input): Typical ±1%.

  • Ripple & Noise (p-p, 20MHz bandwidth, twisted pair measurement):

    • 5V Output: 80mV

    • 12V/15V Output: 120mV

    • 24V Output: 150mV

    • 48V Output: 240mV

  • Temperature Coefficient: Typical ±0.02%/°C.

  • Standby Power Consumption (230VAC input): Max 0.3W for 5V/12V/15V/24V models; Max 0.4W for 48V model.

  • Protection Features:

    • Short-Circuit Protection (SCP): Hiccup mode, allows sustained short-circuit, auto-recovery.

    • Over-Current Protection (OCP): Threshold ≥115% of nominal output current (Io), auto-recovery. Operates in hiccup or constant current mode when output voltage is below 50%. Operates in constant current mode when output voltage is between 50%-100%, auto-recovery after fault removal.

    • Over-Voltage Protection (OVP) Point:

      • 5V Model: ≤ 6.75V

      • 12V Model: ≤ 16.2V

      • 15V Model: ≤ 22.5V

      • 24V Model: ≤ 36.0V

      • 48V Model: ≤ 64.8V

  • Minimum Load: 0%.

  • Start-up Time: Max 2 seconds.

  • Hold-up Time: Typical 12ms at 115VAC; typical 30ms at 230VAC.

General Characteristics

  • Isolation: 4000VAC input-output isolation withstand voltage (1 minute, leakage current <6mA); Insulation resistance ≥100MΩ (tested at 500VDC).

  • Environmental:

    • Operating & Storage Temperature: -40°C to +85°C.

    • Operating Humidity: Max 90% RH (non-condensing).

    • Storage Humidity: Max 95% RH (non-condensing).

    • Operating Altitude: Up to 5000 meters.

  • Derating:

    • Temperature Derating: -40°C to -30°C, derate 5.0% per °C; +50°C to +70°C, derate 2.5% per °C; +70°C to +85°C, derate 2.0% per °C. Above 2000m, derate an additional 3.5°C per 1000m.

    • Input Voltage Derating: For inputs between 85-100VAC, derate 1.34% per VAC.

  • Safety & Reliability: Safety Class I. Designed to UL/EN/BS EN62368, UL508, UL61010, IEC/EN61558-1, EN60335. MTBF per MIL-HDBK-217F @25°C exceeds 300,000 hours.

Physical Characteristics

  • Enclosure: Flame-retardant, heat-resistant plastic (UL94 V-0 rated).

  • Dimensions: 90.00mm (L) x 58.00mm (H) x 17.50mm (W).

  • Weight: Typical 60g.

  • Cooling: Natural convection. Suitable for ventilated environments; consult technical support for sealed applications.

  • Wiring: Accepts 22~12 AWG wire, max terminal torque 0.4 N·m.

  • Pinout:

    1. N (Neutral)

    2. L (Line)

    3. -Vo (Output Negative)

    4. +Vo (Output Positive)

  • Adjustment: Output voltage is increased by turning the "+V ADJ" screw clockwise.

EMC Characteristics

The product is designed to meet the following international EMC standards.

  • Electromagnetic Interference (EMI):

    • Conducted Emission: Complies with CISPR32/EN55032 Class B.

    • Radiated Emission: Complies with CISPR32/EN55032 Class B.

    • Harmonic Current: Complies with IEC/EN61000-3-2 Class A.

  • Electromagnetic Susceptibility (EMS):

    • Electrostatic Discharge (ESD): IEC/EN61000-4-2, Contact ±4kV / Air ±8kV, Performance Criteria A.

    • Radiated Immunity (RS): IEC/EN61000-4-3, 10V/m, Performance Criteria A.

    • Electrical Fast Transient (EFT): IEC/EN61000-4-4, ±2kV, Performance Criteria A.

    • Surge: IEC/EN61000-4-5, Line to Line ±1kV, Performance Criteria A.

    • Conducted Immunity (CS): IEC/EN61000-4-6, 10V r.m.s., Performance Criteria A.

    • Power Frequency Magnetic Field (PFMF): IEC/EN61000-4-8, 30A/m, Performance Criteria A.

    • Voltage Dips & Interruptions: Complies with IEC61000-6-2/IEC61000-4-11, Performance Criteria B/C.

Important Notes

  1. All specifications are measured at an ambient temperature (Tc) of 25°C, humidity <75%, nominal input, and rated load, per the company's internal testing standards.

  2. Product design is subject to change without notice. Contact us for customization inquiries.

  3. At end of life, the product must be stored separately according to ISO14001 and relevant environmental regulations and handed over to qualified agencies for disposal.

  4. For packaging details (packaging number: 58220234) and resources, please visit our website.

Contact Information

MORNSUN Guangzhou Science & Technology Co., Ltd.Address: No.8, Nanyun 4th Road, Huangpu District, GuangzhouEmail: Vic@feisman.cn

MORNSUN® – Your Reliable Power Solutions Partner

For more details, please contact the supplier by email or send an inquiry： Vic@feisman.cn


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