Product Overview

The LI15-20BxxPR2 Series is a cost-effective, standard DIN rail mount, energy-efficient green power solution from MORNSUN, designed to offer high stability and strong anti-interference performance for industrial control equipment, machinery, and various applications in harsh environments. This series features a compact, lightweight, and space-saving design with excellent safety, reliability, and EMC performance.

Product Models: LI15-20B05PR2, LI15-20B12PR2, LI15-20B15PR2, LI15-20B24PR2, LI15-20B48PR2

Key Features

• Wide Input Voltage Range: 85 - 264VAC (277VAC available) / 120 - 370VDC (390VDC available). Accepts both AC and DC input on the same terminals.
• High Isolation Voltage: 4000VAC isolation between input and output.
• High Efficiency & Low Standby Power: Typical efficiency up to 87.0% (230VAC). Standby power consumption is less than 0.3W (at 230VAC input).
• Wide Operating Temperature Range: -40℃ to +70℃.
• Comprehensive Protections: Short-circuit protection (Hiccup mode, sustainable short-circuit, self-recovery), over-current protection, and over-voltage protection (clamping).
• Low Output Ripple & Noise.
• Standard DIN Rail Mounting: Can be installed on TS35x7.5 or TS35x15 standard DIN rails.
• High Reliability & Safety: Meets Overvoltage Category III (per EN61558-1). Safety Class II. MTBF >300,000 hours (MIL-HDBK-217F @25℃).
• Industrial-Grade Design: Robust construction for demanding environments.

Applications

Industrial control equipment, machinery, and other industrial devices operating in harsh environments requiring stable, reliable, and compact power solutions.

Safety & EMC Compliance

Safety Standards: Certified to IS13252 (Part 1) & EN62368-1, BS EN 62368-1; complies with UL/IEC62368-1, IEC/EN61010-1, IEC/EN61558-1, IEC60335-1.

EMC Standards:

• EMI (Emissions): Conducted and Radiated Disturbance meets CISPR32/EN55032 Class B. Harmonic Current meets IEC/EN61000-3-2 Class A.
• EMS (Immunity): Complies with IEC/EN61000-4 series, including:
  • Electrostatic Discharge (ESD): Contact ±4kV / Air ±8kV (Performance Criteria A)
  • Radiated RF Immunity: 10V/m (Performance Criteria A)
  • Electrical Fast Transient/Burst: ±2kV (Performance Criteria A)
  • Surge: Line to line ±1kV (Performance Criteria A)
  • Conducted RF Immunity: 10 Vr.m.s (Performance Criteria A)
  • Voltage Dips, Interruptions: Performance Criteria B

Model Selection & Output Parameters

All models are certified (EN/BIS). Note: BIS marking is printed on the product side panel only at the time of shipment.

• LI15-20B05PR2: Output Power 12W. Rated Output 5V / 2.4A. Output Voltage Adjustment Range: 4.5 - 6.5V. Typical Efficiency: 80.0% (230VAC). Max. Capacitive Load: 2000 µF.
• LI15-20B12PR2: Output Power 15W. Rated Output 12V / 1.25A. Output Voltage Adjustment Range: 10.8 - 13.8V. Typical Efficiency: 85.0% (230VAC). Max. Capacitive Load: 1500 µF.
• LI15-20B15PR2: Output Power 15W. Rated Output 15V / 1A. Output Voltage Adjustment Range: 13.5 - 18.0V. Typical Efficiency: 85.0% (230VAC). Max. Capacitive Load: 1100 µF.
• LI15-20B24PR2: Output Power 15.2W. Rated Output 24V / 0.63A. Output Voltage Adjustment Range: 21.6 - 29.0V. Typical Efficiency: 86.0% (230VAC). Max. Capacitive Load: 700 µF.
• LI15-20B48PR2: Output Power 15.4W. Rated Output 48V / 0.32A. Output Voltage Adjustment Range: 43.2 - 55.2V. Typical Efficiency: 87.0% (230VAC). Max. Capacitive Load: 300 µF.

Note on Adjustment: The actual adjustment range may exceed the selected values. Ensure the output voltage and power level remain within the published maximum limits.

Detailed Electrical Specifications

Input Characteristics:

• Input Voltage Range: AC Input: 85 - 264 VAC; DC Input: 120 - 370 VDC.
• Input Frequency: 47 - 63 Hz.
• Input Current (Max): 0.5 A @ 115VAC; 0.25 A @ 230VAC.
• Inrush Current (Max): 15 A @ 115VAC; 25 A @ 230VAC.
• Leakage Current: < 0.5 mA @ 240VAC.
• Hot-Swap: Not supported.

Output Characteristics:

• Output Voltage Accuracy: ±2% for 5V output; ±1% for other outputs (0% - 100% load).
• Line Regulation: ±0.5% (at rated load).
• Load Regulation: ±1% (230VAC input).
• Output Ripple & Noise (Peak-to-Peak, 20MHz bandwidth): Maximum 80 mV for all models.
• Temperature Coefficient: ±0.02 %/℃.
• Standby Power: < 0.3 W @ 230VAC input.
• Minimum Load: 0%.
• Start-up Time: Maximum 2 seconds.
• Hold-up Time: 30 ms @ 230VAC.
• Protection Features:
  • Over-Voltage Protection (OVP) Clamping Levels:
    • 5V output: ≤ 6.75V
    • 12V output: ≤ 16.2V
    • 15V output: ≤ 22.5V
    • 24V output: ≤ 36.0V
    • 48V output: ≤ 64.8V
  • Over-Current Protection (OCP): Constant current mode when output is between 50%-100% load; self-recovery after fault removal. Operation below 50% output is not recommended.
  • Short-Circuit Protection (SCP): Hiccup mode, allows sustained short-circuit, self-recovery.

General Characteristics:

• Isolation Resistance: Tested at 4000 VAC for 1 minute, leakage current <6mA (Input-Output).
• Operating & Storage Temperature: -40℃ to +70℃ (operating), up to +85℃ (storage).
• Storage Humidity: Up to 95% RH.
• Operating Altitude: Up to 2000 meters.
• Cooling Method: Natural convection (fanless).
• Power Derating:
  • Temperature Derating: 5.0 %/℃ from -40℃ to -30℃; 2.5 %/℃ from +50℃ to +70℃.
  • Input Voltage Derating: 1.34 %/VAC for input voltage 85VAC - 100VAC.

Note on Ripple/Noise Measurement: The test method uses a twisted pair with a 12-inch length. The terminal is paralleled with a 0.1µF ceramic capacitor and a 47µF electrolytic capacitor, measured with a 20MHz bandwidth. Refer to the "Chassis and DIN Rail Application Guide" for details.

Physical & Mechanical Characteristics

• Enclosure Material: Flame-retardant, heat-resistant plastic (UL94V-0 compliant).
• Dimensions (L x W x H): 90.00 mm x 58.00 mm x 17.50 mm.
• Weight: 60 grams (typical).
• Mounting: Standard DIN Rail (TS35 type). The rail must be grounded.
• Pin Assignment (Bottom View):
  1. AC (Neutral - N)
  2. AC (Line - L)
  3. -Vo (Output Negative)
  4. +Vo (Output Positive)
• Wiring: Accepts 24-12 AWG wire. Maximum terminal tightening torque: 0.4 N·m.
• Adjustment: Features an ADJ potentiometer for output voltage adjustment.

Important Notes

1. All specifications are measured at 25℃ ambient temperature, <75% humidity, nominal input voltage, and rated output load, unless otherwise stated.
2. Power derating is required for input voltages between 85-100VAC / 120-140VDC, applying voltage derating on top of the specified temperature derating curve.
3. This product is suitable for use in naturally ventilated environments. For use in enclosed environments, please consult our technical support.
4. Product specifications are subject to change without notice.
5. End-of-life products must be stored separately according to ISO14001 and relevant environmental regulations and disposed of by qualified units.
6. Product customization is available. Please contact us for specific requirements.

Contact Email for Inquiries: Vic@feisman.cn