Enclosed 350W Power Supply Input 220V

• The Mean Well LRS-350 series is a high-power 350W single-output enclosed power supply packed into a compact 1U low-profile (30mm) design.
• It features a switch-selectable AC input (115VAC/230VAC) and provides a range of essential DC output voltages: 5V, 12V, 15V, 24V, and 48V.
• With high efficiency up to 89% and forced air cooling via a built-in DC fan with ON/OFF control, the LRS-350 delivers its full rated power reliably across a wide temperature range (-25°C to +70°C).
• Offering very low no-load power consumption (<0.75W), comprehensive protection features, 5G vibration resistance, and UL 60950-1 safety compliance, this series provides a high price-to-performance power solution for demanding industrial applications.

Features

• Selectable AC Input: Input range (115VAC / 230VAC) selectable by switch.

• Output Voltage Options: Available in 5V, 12V, 15V, 24V, and 48V models.

• High Power Output: Delivers up to 350W of power.

• Forced Air Cooling: Built-in DC fan with automatic ON/OFF control ensures reliable cooling under load.

• High Efficiency: Up to 89% efficiency reduces heat and energy loss.

• Low No-Load Power Consumption: Less than 0.75W draw when idle.

• Compact 1U Profile: Low profile design (30mm height) allows for space-saving installation.

• Surge Withstand: Can handle 300VAC surge input for 5 seconds.

• Wide Operating Temperature: Operates from -25°C to +70°C (refer to derating curve).

• Full Protections: Short circuit, Overload (Hiccup mode, auto-recovery), Over voltage (Shut down, re-power), Over temperature.

• Vibration Resistant: Withstands 5G vibration test.

• Reliability Focused: Designed for high efficiency, long life, and dependability.

• LED Power Indicator: Visual confirmation of power status.

• Safety Compliance: Meets UL 60950-1 standards.

• Quality Tested: 100% full load burn-in tested.

• Warranty: 3-year warranty.

Benefits

• Optimized Input Configuration: Switch allows setting for specific regional mains voltage.

• High Power Delivery: Provides substantial power for demanding loads in a compact unit.

• Reliable Thermal Management: Built-in fan ensures consistent cooling for full power operation across a wide temperature range.

• Energy Efficient: High efficiency minimizes wasted power and heat; low standby draw meets energy standards.

• Space-Saving Design: 1U low profile integrates easily into various chassis and enclosures.

• Robust Performance: Handles input surges and mechanical vibration typical in industrial environments.

• Comprehensive Protection: Protects the power supply and connected equipment from common electrical faults.

• Simplified Approvals: Compliance with major safety standards aids in system integration and certification.

• Cost-Effective High Power: Delivers significant power output with high reliability at a competitive price.

• Clear Status Indication: LED indicator allows for quick operational checks.

Technical Specifications

Ideal Use

• Industrial Automation: Powering substantial loads like larger motors, multiple drives, heating elements, and complex machinery.

• Industrial Control Systems: Providing ample power for large control panels, multiple PLCs, and distributed I/O.

• Mechanical & Electrical Equipment: Suitable as the main power source for equipment requiring up to 350W.

• Electronic Test & Measurement: Powering high-current test rigs, burn-in systems, and complex instrumentation.

• LED Lighting: Driving significant constant voltage LED installations or arrays.

• Communication Systems: Powering larger network switches, routers, or communication base station equipment.

• Charging Applications: Suitable for battery charging systems (with appropriate external charge control).

Tips

• Input Voltage Switch: VERY IMPORTANT: Always confirm the 115V/230V input selector switch is set correctly for your local AC mains voltage before applying power. Incorrect setting will damage the unit.

• Model Selection: Choose the LRS-350 model (5V, 12V, 15V, 24V, 48V) that matches your application's voltage requirement.

• Power Rating: Ensure your total load requirement is within the 300W-350W capacity of the chosen model. Note the peak load capability (150% for 1 second, 12-48V models) for intermittent high loads, but size for continuous load.

• Cooling & Airflow: The built-in fan requires unobstructed airflow. Ensure adequate ventilation space around the unit, especially at the fan intake and exhaust areas. Do not block ventilation holes.

• Derating: Consult the derating curve. Output power must be reduced at high ambient temperatures (typically above 50°C).

• Fan Control: The fan turns on around 50°C internal temperature and off around 40°C. This is normal operation.

• Grounding: Securely connect the FG (Frame Ground) terminal to safety earth.

• Wiring: Use appropriate wire gauges for AC input and DC output terminals capable of handling the high currents involved (up to 60A for the 5V model). Verify DC output polarity.

• EMC Considerations: As a component power supply, the final system incorporating the LRS-350 must be re-tested for overall EMC compliance.