Main Specifications Model Output Voltage Range（V） Output Current Range（A） Ripple(p-p) （Rated Load, Width Limited20MHz） EPS4860-1U 53.5±0.25V 0—60 200mV Environmental Conditions No. Items Technical Specifications Unit Remarks 1 Operating Temperature -20—+55 ℃ Full load 2 Storage Temperature -40—+70 ℃ 3 Relative Humidity 5—95 % No condensation 4 Altitude 0-5000 m derate1℃with every 200 meters’ rising at 2000-5000m 5 Cooling Forced cooling,Draw air from the front and exhausts heat from the behind and this module has temperature-sensing timing function. Electrical Characteristics No. Item Technical Requirement Unit Remark 1、Input Characteristics 1.1 Rated input voltage 200—240 Vac Max AC input voltage 310VAC(static state),no damage to the unit for long time AC Input voltage range 90—286 1.2 Frequency 45—65(typical 50/60) Hz 1.3 Power factor ≥0.99 Rated input, rated load 1.4 Power transformation point 160-175 Vac The details refer to power transform characteristic curve diagram 1.5 Max input current ≤30 A Low voltage full load 1.6 Inrush current ≤30 A 220Vac 2、Output Characteristics 2.1 Rated output voltage 53.5±0.25 Vdc Input220Vac 2.2 Output power 3210 W 175—286Vac input 1605 W 90—174Vac input 2.3 Efficiency ≥90 % 220Vac/rated load current 2.4 Temperature coefficient ≤±0.02 %/℃ 2.5 Ripple and noise ≤200 mVp-p Oscillograph band width is 20MHz.Parallel 10u+104 Capacitor with probe 2.6 Starting up output delay ≤8 S 0VDCfrom rated input voltage to42VDC 2.7 Turn on/off overshoot amplitude ≤±5 % 2.8 Dynamic response Overshoot range △V：≤±5 % Load change at 25%—50%—25% or 50%—75%—50%, jumping rate is0.1A/us; and the jumping period is 4ms; the two half periods are the same Recovery time  △t:≤200 µS 2.9 Combined regulation ≤±1% 2.10 Current sharing imbalance ≤±5 % At the range of 50～100％load 2.11 The output rise time 500 ms Rated input, rated load 3、Protection Characteristics 3.1 Input under voltage protection point ≤85 Vac Can auto recover, 3.2 Input under voltage recovery point ≤88 Vac The return difference≥5V 3.3 Input over voltage protection ≥312 Vac Can auto recover Output Current0A（Test by AC SOURCE+ booster） 3.4 Input over voltage recovery point ≥302 Vac The return difference≥5V 3.5 Input over current protection              － － The AC input L and N wire have fuse 3.6 Output over voltage protection point 58.5—60.5 Vdc Constant voltage 3.7 Output current limit protection point          63≤I≤75 A Can auto recover 3.8 Short circuit protection Endure long time short circuit without damage and auto recover. The module will hiccup 5 minutes before it locked itself. 3.9 Over temperature protection Auto-recoverable when temperature is less than65℃ Powerld enterprises is specialized in switching power supply since 1991, obtained ISO9001 certificate in 2002, ISO14001 certificate in 2006.As a professional switching power supply manufacturer,Powerld can supply a broad range of power supply,we can not only supply our customers with high quality products,but also our best service and fast delivery time.

Main Specifications Model Output Voltage Range（V） Output Current Range（A） Ripple(p-p) （Rated Load, Width Limited20MHz） EPS4875-3U 48±0.25V 0—75 200mV Environmental Conditions No. Items Technical Specifications Unit Remarks 1 Operating Temperature -20—+55 ℃ Full load 2 Storage Temperature -40—+70 Powerld enterprises is specialized in switching power supply since 1991, obtained ISO9001 certificate in 2002, ISO14001 certificate in 2006.As a professional switching power supply manufacturer,Powerld can supply a broad range of power supply,we can not only supply our customers with high quality products,but also our best service and fast delivery time.

The power supply for the system,with the following featuresand functions: 1、Input range 90-286Vac, 53.5Vdc output, PFC, Self contains MCU. 2、The parameter can be controlled by the supervisory monitoring unit through RS485. 3、It features input over/under voltage protection, output over current protection, output overvoltage protection, output short circuit protection, N+1 redundancy and current sharing. 4、It is in compliant with TUV . 1.3 Main specifications Model OutputVoltage（Vdc） Output Current Range（A） Output Voltage Range（Vdc） Ripple(p-p) （Rated Load, Width Limited20MHz） EPA-A30H 53.5 0—30 42—58 200mV 2. Model definitions 2.1 Model comparison External model Internalmodels EPA-A30H EPA-A30H 3. PIN definition： PIN  Signal Remark A1、A2、B1、B2 L AC input A4、A5、B4、B5 N AC input A8 to A11 B8 to B11 PE Protection ground A13 to A21 48V+ DC+ A22 Pre-Charge B13 to B22 48V- DC- A23 NC A24 NC B23 NC B24 NC B25 SHARE+ Module current share A25 NC A26 PS-enable Before powermust beshorted to GND，make sure themoduleis enabled B26 PS-present A27 GND B27 ADDR0 Address line A28 ADDR1 B28 ADDR2 A29 5V+ RS485 power+ A30 5VGND RS485 power- B29 RS485+ Communication wire B30 RS485- Communication wire 4. Environmental Conditions  4.1 Working conditions No. Items Technical Specifications Unit Remarks 1 Operating Temperature -33—+65 ℃ -40℃full load start up，+55~+65℃derating 20% in linearity. 2 Relative Humidity 5—90 % No condensation 3 Altitude 0-5000 m derate1℃with every 200 meters’ rising at 2000-5000m 4 Cooling Forced cooling,Draw air from the front and exhausts heat from the behind and this module has temperature-sensing timing function. 4.2 Storage Conditions No. Items Technical Specifications Unit Remarks 2 Storage Temperature -40—+70 ℃ 3 Relative Humidity 5—95 % No condensation 4 Altitude 0-5000 m derate1℃with every 200 meters’ rising at 2000-5000m 4.3.1Input Characteristics No. Item Technical Requirement Unit Remark 1 Rated input voltage 200—240 Vac Max AC input voltage 310VAC(static state),no damage to the unit for long time AC Input voltage range 90—290 2 Frequency 45—65(typical 50/60) Hz 3 PFC ≥0.99 Rated input, rated load 4 Power transformation point 170-174 Vac The details refer to power transform characteristic curve diagram 5 Max input current 15 A Low voltage full load 6 Inrush current ≤30 A 264Vac 4.3.2Output Characteristics No. Item Technical Requirement Unit Remark 1 Output voltage range adjustable 42—58 Vdc Operate through the monitoring unit (testing condition：empty load) 2 Rated output voltage 53.5±0.5 Vdc Input220Vac 3 Output power 1605 W 154—286Vacinput 802 W 90—154Vac input 4 Efficiency ≥94%  220Vac/rated load current ≥88% 110Vac/rated load current 5 Temperature coefficient ≤±0.02 %/℃ 6 Ripple and noise ≤200 mVp-p Oscillograph band width is 20MHz.Parallel 10u+104 Capacitor with probe 7 Starting up output delay 3—8 S 0VDCfrom rated input voltage to42VDC 8 Turn on/off overshoot amplitude ≤±5 % 9 Dynamic response Overshoot range △V：≤±5 % Load change at 25%—50%—25% or 50%—75%—50%, jumping rate is0.1A/us; and the jumping period is 4ms; the two half periods are the same Recovery time  △t:≤200 µS 10 Combined regulation ≤±1% 11 Current sharing imbalance ≤±5% % At the range of 50～100％load 4.3.3 Protection Characteristics No. Item Technical Requirement Unit Remark 1 Input under voltage protection point ≤85 Vac Can auto recover, 2 Input under voltage recovery point ≤88 Vac The return difference≥5V 3 Input over voltage protection ≥295 Vac Can auto recover Output Current0A（Test by AC SOURCE+ booster） 4 Input over voltage recovery point ≥286 Vac The return difference≥5V 5 Input over current protection              － － The AC input L and N wire have fuse 6 Output over voltage protection point 58.5—60.5 Vdc Constant voltage 7 Output current limit protection point          31≤I≤34 A Can auto recover 8 Short circuit protection Endure long time short circuit without damage and auto recover. The module will hiccup 5 minutes before it locked itself. 9 Over temperature protection Auto-recoverable when temperature is less than65℃ 4.4 Safety requirements 4.4.1Safety requirements No. Item Criterions Remark 1 Dialectical strength Input-output 4242Vdc/10mA/ 1min No flyover, no breakdown. Input-ground 2121Vdc/10mA/ 1min Output-ground 700Vdc/10mA/ 1min 2 Isolation resistance Input-output ≥10MΩ@500Vdc Under normal air pressure，humidity 90%， Input-ground ≥10MΩ@500Vdc Output-ground ≥10MΩ@500Vdc 3 Touch current (Input-ground) ≤3.5mA 264Vac/60Hz 4 Safety approval In compliant with TUV EN60950-1 4.4.2EMC characteristics No. Item Criterions Remark 1 EMC CE CLASS B       EN55022 RE CLASS B  EN55022 EFT LEVEL 3 B IEC61000-4-4 SURGE LEVEL 4 B (difference mode2KV, common mode 4KV) IEC61000-4-5 DIP Drop to 70％UT，duration 100ms，at angle of 0°,45°,90°,135°,180°,225°,2...

Ⅰ. General ● Input range 90-286Vac ● Have PFCfunction,PF≥0.99 ● It features input over/under voltage protection, output over current protection, output overvoltage protection, output short circuit protection ● Wideoperating temperature range(-30℃~55℃) ● System withbattery management,power systemmonitoring,configure thesensor canachieve environmentalmonitoring, can provideRS485 (optional)communicationscan take the initiativeto reportalarms,easy to implementremote monitoringand unattended High efficiency, longlife and highreliability IV. Environmental Conditions No. Items Technical Specifications Unit %