Reliable Under All Conditions: MORNSUN’s AC-DC 305RAC Family

New requirements for AC/DC power supplies continue to emerge in the changing market, and conventional 264V input AC/DC power supplies have been difficult to meet all conditions. The MORNSUN "305RAC (Reliable under All Conditions)" series can be understood that the input voltage range is 85-305VAC, and it handles the voltage fluctuation easily and features best-in-class performance, high-input-voltage capability, high-low-temperature reliability, high-humidity reliability, high-altitude reliability and good EMC performance under almost any harsh conditions.

Figure 1 Image courtesy of MORNSUN

 

1. Take voltage fluctuation conditions as an example. Voltage of the power grid is over 264VAC during off-peak hours, and voltage fluctuates is large when powered by generator, the electrolytic capacitor inside the power supply may be damaged. The input voltage of 85-305VAC ensures that the module is not damaged by the voltage fluctuation of the power grid.

Figure 2 Image courtesy of MORNSUN

 

2. Electromagnetic interference conditions such as lightning and surge, the 305RAC family can withstand transient surge impact. At the same time, its EMI has been tested to meet Class A/B standards, and a certain margin is left.

Figure 3 Image courtesy of MORNSUN

3. AC/DC power supplies are also often used in remote and harsh environments, the altitude may exceed 2000m or even 5000m. The 305RAC family has passed a series of tests to verify reliable operation in high altitude environment, such as high-temperature altitude test, low-temperature altitude test, aging test, etc.

4. In addition to the above application conditions, for humidity, the 305RAC family have passed relevant tests, such as alternating temperature & humidity test, high temperature and high humidity test, constant temperature & humidity test, etc.

 

Types	Test	Test
Reliability Testing	Low Temperature Working	Thermal Shock
	Low Temperature Storage	Low temperature altitude
	High temperature working	High temperature low pressure
	High temperature aging	High temperature altitude
	High temperature storage	High temperature high humidity
	Constant temperature & humidity	Input ON/OFF
	Alternating temperature & humidity	Short-circuit for long time
	Drop test	Constant humidity and temperature(500h)
	Sine vibration	high-temperature aging(1000h)
	Temperature cycling
Structural Testing	Strength test of the terminal and the mounting device

 

5. Temperature is also a common indicator. The temperature of ordinary industrial environment is - 25℃~+70℃, but the high and low temperature are more severe in some harsh environments. The 305RAC family can meet the requirements of reliableoperation in the working environment temperature of - 40℃~+80℃.

 

About MORNSUN

MORNSUN, a national high-tech enterprise headquartered in China, has grown into a leading vertical industrial power supply manufacturer. Keeping the spirit of being forerunner, MORNSUN specializes in magnetic isolation technology and product research and application, and manufactures high-quality products include AC/DC converter, DC/DC converter, adapter, isolation transmitter, IGBT driver and LED driver , etc.