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COSEL Power Supply, Noise Filter 2025 Product Catalog
Handling Of Rugged PCB UnitHandling instruction of rugged PCB power supplies is different from that of unit type(with chassis) powersupplies. Please keep in mind the following in handling the PCB type.(1) After the load testThere remains high voltage inside the power supplyafter the load test or Hi-Pot test are performed. Therefore,if the power supply is put on the metal plate, it maycause short condition due to exposing solder part, and itwill degrade the unit or cause an electric shock.Power supplyOh!Metal Plate(2) Mechanical stressWhen assembling the power supply on the table, avoid mechanical stress to the parts or solder joints. The power supplywill be damaged by the stress.TwistingLoosened screwNoNoNo(3) Notes when maintenanceAt light load, there remains high voltage inside thepower supply for several minutes after switch OFF. Whenmaintenance is performed, pay special attention toelectric shock.OFFPower supply(4) Insulation distanceWhen setting the power supply on metal chassis, keep the insulation distance between the lead of parts and metal chassis.The insulation distance is specified at each relative page of the unit. If the distance is not enough, it is preferable to keep thedistance by inserting insulation sheet between the power supply and metal chassis.More thanregular sizeLess thanregular sizeInsulation sheet5
