250W switching power supply CE ROHS IP20

250W switching power supply(CE,ROHS,IP20) size:215*115*65mm input AC:170-250V output power:500W,12V 2 years warranty

250W switching power supply(CE,ROHS,IP20)Option conditions:

             Voltage: The specifications of the input voltage must according to the remark at the switching power supply.

             Power factor: Usually, he power factor switching power supply is 0.5-0.6, and that with the PFC power factor control above 0.9.

             Output power: The output power should be limited within the rated range, meawhile, the relation should be under attention between the ambient temperature and the output loading. Usually, the actual load should be 85% of the output power of the switching mode power supply.

             Minimum current: The output current should be the minimum value of the loading in the instruction.

             Accidental fault stage: The stability of the power supply relates to the mean- time- between- failures (MTBF)  and basically the fault rate is lower. However, the fault rate relates to the installation and working condition by the user.

Installation

         Even the top efficient switching power supply could present heat. Therefore, it is must to assure the sufficient space for heat emission when installed. The sufficient space for heat emission would keep the inside-the-cylinder temperature at the 45and below.

         Screw installation: The specifications, system and length of the screw should accord with the instruction and present the sufficient strength.

Safety and attention items

         It is to assure whether the nominal value of the power supply accords with the input voltage. Before powering, it is must to inspect the right connection to the input and output lines to avoid damaging the power supply and the clients device.

         It is must to assure the reliable grounding to ensure the safety and reducing the interference signal.

         The current peak of the load for the client equipment should be the nominal current and below for the power supply.

         The multiple output of power supply presents the main and auxiliary output with the character of  the main one more excellent than the auxiliary one.

         The output current could be the top one, however, the general load couldnt exceed the maximum output power remarked at the power supply. The frequent switching power supply and the unreasonable environment would impair the service life.

         The power supply could select the two installation ways of vertical or horizontal. The vertical one could adapt with the higher ambient temperature.

         In case if abnormal condition of the power supply or broken power supply, Should be contact the vendor on time.

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