title: COSEL Power Supply, Noise Filter 2025 Product Catalog

Summary

COSEL Power Supply, Noise Filter 2025 Product Catalog

AC-DC Power Supplies DIN Rail TypeInstruction Manual1 Functions1.1 Input Voltage Range!Input voltage range of the power supplies is from AC85V toAC264V or DC (please see SPECIFICATIONS for details).!If input value doesn’t fall within above range, a unit may not operatein accordance with specifi cations and/or start hunting or operateprotection circuit or fail.If you need to apply a square waveform input voltage, which iscommonly used in UPS and inverters, please contact us.!When the input voltage changes suddenly, the output voltageaccuracy might exceed the specifi cation. Please contact us.!To comply with safety standards,input voltage range is shown inTable 1.1.Table 1.1 Input voltage range of safety standardsNo.SeriesInput Voltage rangeAC input DC input1KHEA30F, KHNA30F2KHEA60F, KHNA60F88V-250V3KHEA90F, KHNA90F100V-240V4KHEA120F, KHNA120F(50/60Hz)5KHEA240F, KHNA240F88V-350V6KHEA480F, KHNA480F? KHEA30F/60F/90F, KHNA30F/60F/90F!Operation stop voltage is set at a lower value than of a standardversion (derating is needed).-Use ConditionsOutputKHEA30F,KHNA30F 10WKHEA60F,KHNA60F 20WKHEA90F,KHNA90F 30WInput AC50V or DC70VDuty 1s/30s*Please avoid using continuously for more than 1 second underabove conditions. Doing so may cause a failure.1.2 Inrush Current Limiting!An inrush current limiting circuit is built-in.!If you need to use a switch on the input side, please select onethat can withstand an input inrush current.? KHEA30F/60F/90F/120F,KHNA30F/60F/90F/120F!Thermistor is used in the inrush current limiting circuit. When youturn the power ON/OFF repeatedly within a short period of time,please have enough intervals so that a power supply cools downbefore being turned on.? KHEA240F/480F, KHNA240F/480F!Thyristor technique (KHEA/KHNA240F) and power relay technique(KHEA/KHNA480F) is used in the inrush current limitingcircuit.KH-22!When you turn the power ON/OFF repeatedly within a short periodof time, please have enough intervals so that the inrush currentlimiting circuit becomes operative.!When the switch of the input is turned on, the primary inrush currentand secondary inrush current will be generated.1.3 Overcurrent Protection? KHEA30F/60F/90F, KHNA30F/60F/90F!A overcurrent protection circuit is built-in and activated over 105%of the rated current. A unit automatically recovers when a faultcondition is removed. Please do not use a unit in short circuit and/or under an overcurrent condition.!Hiccup Operation Mode (except KHEA/KHNA90F)When the overcurrent protection circuit is activated and the outputvoltage drops to a certain extent, the output becomes hiccup sothat the average current will also decrease.!Output Voltage ShutdownIf the output voltage drops according to the overcurrent protectioncircuit operating continuously for about 0.5 second, the outputvoltage may shut down. To recover the output voltage, remove acondition that is causing an overcurrent, shut down the input voltage,wait more than 3 minutes and turn on the AC input again.? KHEA120F/240F/480F, KHNA120F/240F/480F!An overcurrent protection circuit is built-in and activated over101% of the peak current. A unit automatically recovers when afault condition is removed. Please do not use a unit in short circuitand/or under an overcurrent condition.!Hiccup Operation ModeWhen the overcurrent protection circuit is activated and the outputvoltagedrops to a certain extent, the output becomes hiccupso that the average current will also decrease.1.4 Peakcurrent Protection? KHEA120F/240F/480F, KHNA120F/240F/480F!Peakcurrent protection is built-in (refer to Instruction Manual 3 forPeak loading).If this function comes into effect, the output is shut down.A few seconds later, A unit automatically recovers.But if the overcurrent condition has not been released, the outputwill stop again (hiccup Operation Mode).*The recovery time varies depending on input voltage and loadcondition.1.5 Overvoltage Protection? KHEA30F/60F/90F, KHNA30F/60F/90F!An overvoltage protection circuit is built-in. If the overvoltage protectioncircuit is activated, shut down the input voltage, wait morethan 3 minutes and turn on the AC input again to recover the outputvoltage. Recovery time varies depending on such factors asinput voltage value at the time of the operation.? KHEA120F/240F/480F, KHNA120F/240F/480F!An overvoltage protection circuit is built-in.