The same switching power supply may have different outcomes in different applications. FranMar cannot guarantee that the final system can 100% meet the EMC requirements because there are other factors may influence its EMC such as wiring, location and grounding of the switching power supply in the system.
Class II power requires in two levels of insulation (either double or reinforced) between the input and the output to protect user from electric shock. Class II power supplies can be identified on the label by a symbol of a large square with a smaller square inside of it. The most common mobile phone charger and laptop power supply belong to class II power.
Class 2 power supplies must be constructed with In-Wall wiring for permanent installation, where they may be surrounded by insulation. The wiring requirements and power limitations of the power supply in order to reduce the risk of shock or fire. Class 2 power supply is popular in the lighting, control and automation industry because requires lower safety protection requirements.
LPS power supply is designed for safety reasons to conform to a maximum permitted output voltage, it does not allow the apparent power to exceed 100VA if the power factor is less than 0.9 or 100W if the power factor is above 0.9 to mitigate the risk of hazardous conditions.
An advantage of LPS products is that there are less restrictions due to the lowered risk of fire or electrocution during operation. The materials used in LPS power supplies do not need to meet the same as some other power supplies, the safety distances and flammability rating of components can be much lower. Therefore, the plastic enclosure of these power supplies could use HB flammability rating. So the cost of production is less.
MOOP (Mean Of Operator Protection) : provide protection to the operator
MOPP (Mean Of Patient Protection) : provide protection to the patient
When products declare 2xMOPP means that product can provide two protections to the patient.