Power Supply Unit MEAN WELL HRP-300-12 324W 85-264V Active Cooling

The MEAN WELL HRP-300-12 is a reliable power supply unit delivering a total power of 324W designed for continuous and efficient electrical conversion. Operating within an AC input voltage range of 85V to 264V and supporting a frequency range of 47 to 63 Hz, this unit accommodates a universal power input to suit various electrical environments. It features active cooling with one built-in fan and a built-in cooling fan ON-OFF control mechanism to manage thermal performance effectively. Built with safety and compliance in mind, the unit meets recognized standards and includes a 1U low profile design measuring 105mm in width, 199mm in depth, and 41mm in height.

Advantages

This power supply unit stands out with its high efficiency rate of up to 89 percent, which helps minimize energy losses during operation. The incorporation of a built-in active power factor correction function with a power factor greater than 0.95 ensures optimized power utilization. For enhanced resilience, the device can withstand a 300VAC surge input for up to 5 seconds, protecting the internal circuitry from unexpected grid fluctuations. Comprehensive safety is provided through built-in protections against short circuits, overloads, over voltages, and over temperatures, complemented by a constant current limiting circuit. Additional integration capabilities include a built-in DC OK signal and a remote sense function for precise voltage delivery.

Suitable for

• Industrial automation systems requiring stable 324W power
• LED lighting installations and large display setups
• Control panels and machinery with 1U low profile space constraints
• Electronic test equipment and laboratory setups

When it may not be suitable

This device may not be suitable for environments that require completely silent operation, as it utilizes active cooling with a built-in fan that generates operational noise. Additionally, applications operating outside the specified voltage range or those requiring water-resistant enclosures will need alternative power solutions.

Key specifications

• Total power output: 324W
• AC input voltage range: 85-264V
• Frequency range: 47-63 Hz
• Efficiency: Up to 89%
• Dimensions: 105mm width x 199mm depth x 41mm height
• Cooling: Active cooling with one built-in fan
• Certifications: UL60950-1 and TUV EN60950-1

How to use

Installation should be performed by qualified personnel in accordance with standard electrical safety guidelines. Ensure that the input voltage matches the specified range of 85 to 264 volts AC before connecting the wiring to the designated terminals. Mount the unit securely within an enclosure or rack that allows adequate airflow for the active cooling fan. Connect the load to the output terminals, observing correct polarity, and utilize the built-in remote sense and DC OK signal connections if required by your specific system architecture.

What to consider before purchase

• Verify that the 324W power output matches the total electrical load requirements of your application
• Check the physical dimensions of 105mm x 199mm x 41mm to ensure it fits within your available mounting space
• Account for the active cooling fan noise in acoustically sensitive environments
• Confirm that input voltage sources align with the 85-264V operating range

Usage recommendations

For optimal longevity and safety, ensure proper ventilation around the unit to allow the active cooling fan to function efficiently. Avoid obstructing the airflow paths and periodically check terminal connections to maintain secure electrical contact.