USER MANUAL
Contents
1. memm anarnnannt 10 Figure 5 CAN Bus termination switches eneee 10 PISMO 20292 FUSS 3016920707 00 1109 SAMMA MA aE A aE ETAETA 10 Figure 7 Rear view of the low voltage LV mean 12 Figure 8 Rear side connectors of the low voltage LV nene 12 Figure 9 Rear view of the high voltage HV 66 16 Figure 10 Rear side connectors of the high voltage HV anne 16 Reue Hed SC NS Oi 1 27 222 20 aed O E E E EA A EA um m bas ca ammu uu 23 C2009 ELTEK VALERE DEUTSCHLAND GmbH UM DCR PSR308 4 0LV HV E R1 1 WW ELTEK VALERE DC Power Rack always on DCR PSR308 4 0 LV HV User Manual Page 5 24 1A Safety Instructions IN Warning Because several components of operating electric devices are charged by dangerous voltage the im proper handling of electric devices may be the cause of accidents involving electrocution injury or material damages e Operation and maintenance of electrical devices must be performed by qualified skilled person nel such as electricians in accordance with EN 50110 1 or IEC 60950 e Install the unit only in areas with limited access to unskill2. set 7 Tieevatage measurements Three voltage measurement inputs iT wire Cross V3 tap voltage EYS Om O 7 5mm V2 system voltage 75mm e a o V1 battery voltage 0 75mm 6M mm It is necessary to connect the battery voltage or the system voltage because the battery voltage or the system voltage is to be used for the power supply of the DC controller unit UPC3S X8 Three current measuring inputs 11 13 for shunts 60mV d H 075mm a Se ee T e Y B S Oa 2009 ELTEK VALERE DEUTSCHLAND GmbH UM_DCR_PSR308_4 0LV_HV_E_R1 1 DC Power Rack DCR PSR308 4 0 LV HV User Manual Page 18 24 Connector Function Recommended wire cross section W ELTEK VALERE always on External connection for connection board optional Cord set ribbon cable 50 pole Commonly the external connector X9 is not used because all measuring control and signalling wires of the system can be directly connected to the respective connectors of the power rack X9 is alternatively to be used if the connections should be completed over the connection board optional optocoupler max 60V 20mA Not connected o y O X11 Two temperature measuring inputs for sensors of type KTY81 EE as Fow digtalmputs Dns
3. section V3 tap voltage _ 0621001 7 V2 system voltage 0 7 5mm A O Java 00000 075mm 2 V1 battery voltage 0 75mm 2 22111 1 It is necessary to connect the battery voltage or the system voltage because the battery voltage or the system voltage Is to be used for the power supply of the DC controller unit UPC3S X8 Three current measuring inputs 11 13 for shunts 60mV 2009 ELTEK VALERE DEUTSCHLAND GmbH UM_DCR_PSR308_4 0LV_HV_E_R1 1 DC Power Rack DCR PSR308 4 0 LV HV User Manual Page 14 24 Connector Function Recommended wire cross section W ELTEK VALERE always on External connection for connection board optional Cord set ribbon cable 50 pole Commonly the external connector X9 is not used because all measuring control and signalling wires of the system can be directly connected to the respective connectors of the power rack X9 is alternatively to be used if the connections should be completed over the connection board optional optocoupler max 60V 20mA Not connected o y O X11 Two temperature measuring inputs for sensors of type KTY81 EE as Fow digtalmputs Dns Dne 0 2 7 Digital input 8 DGND 0 75mm2 Four digital inputs Din1 Din4 7 Digital input 4
4. X17 for a clear identification To clarify The drawing see figure 10 shows the labelling of the terminal blocks X3 Ethernet a Modem X4 External Connection Figure 10 Rear side connectors of the high voltage HV rack Connect the input and output wires as well as the alarm wires to the rear connectors according to the connection tables on the following pages All measuring control and signalling wires of the system can be directly connected to the respective connectors of the power rack 2009 ELTEK VALERE DEUTSCHLAND GmbH UM_DCR_PSR308_4 0LV_HV_E_R1 1 DC Power Rack DCR PSR308 4 0 LV HV User Manual Page 17 24 W ELTEK VALERE always on 3 2 5 1 Connection tables HV rack Assignment of the rear side connectors HV version according to figure 10 Connector Function Recommended wire cross Section Vi 02 C eeu SE If the fully equipped rack is single phase connected the wire cross section of N must be 6 mm section calculated for a fully equipped rack 5 rectifiers X2 DC output 110Voc 220Voc DC output minus pole terminal contact Combicon DC output plus pole terminal contact Combicon _ Ethernet connector RJ45 KL Modem connector R45 S y O CANT 511 6 pole TP SS PCAN2 RJ11 6 pole ees
5. Electric connectors AC input DC output max 5 rectifiers of series PSR308 Vo 24 48 60Voc and 1 DC con troller UPC3S 24 48 60V version 100 up to 250Vac max 5 rectifiers of series PSR308 Vo 110 220Voc and 1 DC con troller UPC3S 110 220V version 4 There are no internal fuses we recommend an individual fuse for each input 16A MCB characteristic B 24 48 60Voc single output depends on the used rectifiers 150Aoc 24Voc 83 5Apc 48Voc 67 5Apc 60Voc 108 216Voc single output depends on the used rectifiers 37 5Apc O108Voc 18 5Aoc O216Voc From 800 to a maximum of 4000W VI gt 173Vac From 600 to a maximum of 3000W 0 Vi lt 173Vac 3 phase input L1 L2 L3 N PE alternatively connectable to single phase 1 x output screw terminal M10 C2009 ELTEK VALERE DEUTSCHLAND GmbH 1 x output terminal contact UM DCR PSR308 4 0LV HV E R1 1 DC Power Rack DCR PSR308 4 0 LV HV User Manual Page 22 24 Type designation Signalling contacts Communication interfaces Voltage measurement inputs Sensor input Temperature sensor inputs Current measurement inputs Control outputs Relay outputs Digital inputs External connection Environmental Max installation altitude Ambient temperature Audible noise Mechanical Type of construction Cooling Surfaces W H D Min installation depth Weight ELTEK VALERE always on DCR
6. Two CAN Bus connectors X5 CAN1 X6 CAN 2 are located at the rear of the sub rack see figures 8 and 10 3 2 2 CAN Bus Termination The CAN Bus must be terminated at both ends If no other power rack and or module is connected CAN 2 not used the CAN termination resistor must be enabled by setting the CAN termination switch 1 2 or both Shown in figure 5 to ON position If CAN 2 is connected too the CAN termination resistor must be disabled by setting the CAN termination switches 1 and 2 to OFF position For switch functions in detail see the table below Table CAN Bus termination switch functions Switch 1 position Switch 2 position CAN Bus termination resistor OFF OFF Disabled ATTENTION Missing terminations or too many terminations within the system can disturb the CAN Bus Communication No more than two termination resistors should be activated on one bus and these should be located at both ends of the bus 3 2 3 Fitting of the modules After you have completed the CAN Bus termination setting fit the modules into the slots of the sub rack e Fill the rack beginning with the left slot Slots 1 5 are provided for the rectifiers PSR308 slot 6 is provided for the DC controller unit UPC3S e Unused PSR slots must be covered with cover plates see section 2 4 Available Options 2009 ELTEK VALERE DEUTSCHLAND GmbH UM_DCR_PSR308_4 0LV_HV_E_R1 1 ELTEK VALERE DC Power Rack always
7. PSR308 4 0 LV DCR PSR308 4 0 HV Rectifier fault 1 x potential free relay output COM NC contact load max 60Voc max 500MA Fan alarm 1 x relay output COM NC NO contact load max 60Voc max LA 30Voc max 5A 240Vac max 5A 2 x isolated CAN Bus connectors RJ11 6 pole 1 x Ethernet RJ45 1 x Modem RJ45 3 x V1 V2 V3 battery voltage system voltage tap voltage of the battery 1 x for voltage drop compensation Not available 2 x for sensors KTY81 lt 3 x 11 12 13 for shunts 60mV Optocoupler outputs for contactors LVD PLD 1 2 max 60V 20mA 6 x potential free contact load max 60Voc max 500mA 8 x Din 1 Din 8 1 x 50 pole terminal block for the connection of all measuring control and signalling lines of the system via the connection board optional to the control unit UPC3S lt 1500 m i operation 20 C 55 C storage 40 C 85 C lt 45dB A at 1m distance i Sub rack 19 4U Forced cooled with integrated fan rack temperature regulated and monitored powder coating RAL 7035 front only constructive parts anodized metal 483 178 318mm 19 4U 368mm plus 25 5mm length of the module handle approx 4 8 kg excluding PSR and UPC3S modules 2009 ELTEK VALERE DEUTSCHLAND GmbH UM DCR PSR308 4 0LV HV E R1 1 W ELTEK VALERE DC Power Rack IWAN DCR PSR308 4 0 LV HV User Manual Page 23 24 Applicable standards Mechanical construction acc to VDE 0160 edition 5 88 cha
8. VALERE DEUTSCHLAND GmbH All rights reserved 2009 ELTEK VALERE DEUTSCHLAND GmbH UM_DCR_PSR308_4 0LV_HV_E_R1 1 DC Power Rack DCR PSR308 4 0 LV HV User Manual Page 3 24 W ELTEK VALERE always on The current revision status of this user manual is the following Revision 1 1 Date 2009 12 21 Revision Description of change C ELAME first edition Cin 2007 12 14 Index of figures inserted minor text modifications sections 2008 06 16 CAN Bus termination Connection Tables reworked Minor text modifications article code in the section Technical Specifications corrected new revision status numbering X X RTH 2009 02 05 introduced 2009 ELTEK VALERE DEUTSCHLAND GmbH UM_DCR_PSR308_4 0LV_HV_E_R1 1 WW ELTEK VALERE DC Power Rack a pete DCR PSR308 4 0 LV HV gt User Manual Page 4 24 Table of Contents TAs AFET IRNS TRIC TON SAAMA A 5 EB ELECEIRIC WA TE ODPRO A imre E E E EE 5 i OE NERA CINFOR MATION corrino A E EE 6 02 155 ESE M 0 00000000 E E nam 6 2A NOV KAER ONION it REA aa EE EEE EErEE EEEE e EREE EEES 7 s ULME AS Westenra A E SE EL LA EE aaa aia a 8 2 A ALS ODI Se aenea 2 2222222222 8 2 9 COOlNnE Air Flow TEESE LION kaant a aada aa ai sala ai 9 22 17 e A ee E E 9 AAND S C cae an TS E A ae ee ee 10 FEON O AMI AAA A ea menseioesemeesreeeeeeees 10 SPA
9. on DCR PSR308 4 0 LV HV User Manual Page 12 24 3 2 4 Low Voltage Rack Rear View Electrical Connectors Figure 7 Rear view of the low voltage LV rack With the stickers affixed on the backplane the connectors are labelled X1 X18 for a clear identification To clarify The drawing see figure 8 shows the labelling of the terminal blocks MAT X18 External Connection Figure 8 Rear side connectors of the low voltage LV rack Connect the input and output wires as well as the alarm wires to the rear connectors according to the connection tables on the following pages All measuring control and signalling wires of the system can be directly connected to the respective connectors of the power rack 2009 ELTEK VALERE DEUTSCHLAND GmbH UM DCR PSR308 4 0LV HV E R1 1 DC Power Rack DCR PSR308 4 0 LV HV User Manual Page 13 24 W ELTEK VALERE always on 3 2 4 1 Connection tables LV rack Assignment of the rear side connectors LV version according to figure 8 Connector Function Recommended wire cross section Vi AC input L1 2 2 L2 If the fully equipped rack is single phase connected the wire cross section of N must be 6 mm Recommended wire cross section calculated for a fully equipped rack 5 rectifiers DC output minus pole connection with M10 bolt 70mm 35mm 25 mm brass 2 DC output plus pole connection with M10 bolt 70mm 35mm 25mm brass EE E
10. DGND 0 75mm a X14 Three potential free relay outputs contact load max 60V max 500mA Relay 4 COM 0 75mm Relay 4 NO 7 Relay 6 COM Relay 6 NO 0 7 5mm ON 4 On IN X 4 3 IN On 4 GQ m m Ww N J G Z U NI ON N 2009 ELTEK VALERE DEUTSCHLAND GmbH UM_DCR_PSR308_4 0LV_HV_E_R1 1 DC Power Rack DCR PSR308 4 0 LV HV User Manual Page 15 24 W ELTEK VALERE always on X15 Three potential free relay outputs contact load max 60V max 500mA Relay 1 COM Relay 1 NC Relay 1 NO Relay 2 COM Relay 2 NC Relay 2 NO 9 Relay 3 NO 0 7 5mm 7 Sensor input for voltage drop compensation sense S O sense 16 1 2 a eo O X17 Alarm Fan rack Alarm NO Alarm COM 18 Kk 1 Alarm NC 1 COM and NO are closed during failure X Rectifier fault Relay output COM NC 2 Relay output COM NC 0 7 5mm Contact load max 60Voc max 1A 30Voc max 5A 240Vac max 5A Contact load max 60Voc max 500MA C2009 ELTEK VALERE DEUTSCHLAND GmbH UM DCR PSR308 4 0LV HV E R1 1 ELTEK VALERE DC Power Rack always on DCR PSR308 4 0 LV HV User Manual Page 16 24 3 2 5 High Voltage Rack Rear View Electrical Connectors Figure 9 Rear view of the high voltage HV rack With the stickers affixed on the backplane the connectors are labelled X1
11. Dne 0 2 7 Digital input 8 DGND 0 75mm2 Four digital inputs Din1 Din4 7 Digital input 4 DGND 0 75mm lt ugzgzu u m lt t u0u O UA X14 Three potential free relay outputs contact load max 60V max 500mMA Relay 4 COM 0 7 5mm Relay 4 NO 7 Relay 6 COM Relay 6 NO 0 7 5mm ON 4 On IN X 4 3 IN On 4 GQ m m Ww N J G Z U NI ON N 2009 ELTEK VALERE DEUTSCHLAND GmbH UM_DCR_PSR308_4 0LV_HV_E_R1 1 W ELTEK VALERE DC Power Rack always on DCR PSR308 4 0 LV HV User Manual Page 19 24 section max 60V max 500mA Relay 1 COM Relay 1 NC Relay 1 NO 7 Relay 3 NO Alarm Fan rack 1 COM and NO are closed during failure 17 Rectifier fault 1 Relay output COM NC 2 Relay output COM NC Contact load max 60Voc max 1A 30Voc max 5A 240Vac max 5A Contact load max 60Voc max 500MA C2009 ELTEK VALERE DEUTSCHLAND GmbH UM DCR PSR308 4 0LV HV E R1 1 ELTEK VALERE DC Power Rack always on DCR PSR308 4 0 LV HV User Manual Page 20 24 3 2 6 Schematic Diagram Example of use AC mains L1 2 3 Normally the AC input X1 is connected to three phase 5 mains L1 L2 L3 plus neutral conductor N Alternatively l the AC input can be single phase connected plus neutral conductor N see th
12. PA ELTEK VALERE always DC Power Rack DCR PSR308 4 0 LV HV USER MANUAL UM_DCR_PSR308_4 0LV_HV_E_R1 1 ELTEK VALERE DC Power Rack always on DCR PSR308 4 0 LV HV User Manual Page 2 24 Notes to this manual ATTENTION Read this manual very carefully before installing and commissioning the DC power rack This manual is a part of the delivered DC power rack Familiarity with the contents of this manual is required for installing and operating the DC power rack The rules for prevention of accidents for the specific country and the universal safety rules in accor dance with IEC 364 must be observed The function description in this manual corresponds to the date of publishing Technical changes and changes in form and content can be made at any time by the manufacturer without notice There are no obligations to update the manual continually The unit is manufactured in accordance with applicable DIN and VDE standards such as VDE 0106 part 100 and VDE 0100 part 410 The CE marking on the unit confirms compliance with EU standards 2006 95 EG low voltage and 2004 108 EG electromagnetic compatibility if the installation and op eration instructions are followed Supplier ELTEK VALERE DEUTSCHLAND GmbH GB Industrial Schillerstra e 16 D 32052 Herford T 49 0 5221 1708 210 FAX 49 0 5221 1708 222 Email Info industrial eltekvalere com Internet http www eltekvalere com 2009 ELTEK
13. SIE E E e E Mm E E iii 10 IMINO AN et ONAN Inter Uap eE EE E RER EEEa a iii Mma 11 iS eee CAN BUS TOINA ieir aa a UUT EE AE EE E E E OE EOE 11 ll Sa EO 11 3 2 4 Low Voltage Rack Rear View Electrical CONNECCOSS 12 3 2 4 1 Connection tables LV TACK 13 3 2 5 High Voltage Rack Rear View Electrical Connectors 10 Gs oe 0000 9 6302 9 23 LAT 0 _ 17 3 2 6 Schematic Diagram Example OF USE cseciadessewssatersdestecsaresabescueenevenvecid caveciexs tikai aeaa Panao aiaa Aea ulatama 20 A MAINTENANCE Ae A E E E E ES 21 01 ws 11072145 85105 TIITII 21 5 1 Dimensional Drawings edela am itakiitea usinanutiieubiannaudtcecseadopdencibten 23 Index of figures 22 01 42 22 062 2 22 2 aa a on get ea la ala alata la a 6 Figure 2 DC power rack fully 6 11 0 060 2 Bye 0 IMEMINE M 22 9 Figure 4 View into the empty DC power
14. e blue lines AC input X1 7 E E RPE EE CAN X5 X6 09 X10 X18 DC distribution Figure 11 Schematic diagram REMARK We recommend an individual fuse for each input Recommended input fuses 16A MCB characteristic B 2009 ELTEK VALERE DEUTSCHLAND GmbH UM_DCR_PSR308_4 0LV_HV_E_R1 1 ELTEK VALERE DC Power Rack always on DCR PSR308 4 0 LV HV User Manual Page 21 24 4 Maintenance In general the system Is maintenance free A yearly inspection with following checks Is recommended Correct fan operation Mechanical inspection Removal of dust and dirt Check for internal dust or humidity Attention Dust combined with moisture or water may influence or destroy the internal electronic circuits Dust inside the unit can be blown out with dry compressed air The interval between the checks depends on ambient conditions of the installed system For the exchange of defective fans in the fan rack an additional instruction manual is available on request 5 Technical Specifications Type designation DCR PSR308 4 0 LV DCR PSR308 4 0 HV Article code 102 308 517 LV02 102 308 517 HV02 Main Data Devices Designed for the use of 1 up to Designed for the use of 1 up to Input voltage Internal input fuses Nominal output voltage Max output current rack fully equipped with 5 rectifiers Output power
15. ed personnel e Before starting work the unit must be disconnected from mains Make sure that the unit is earthed e Only spare parts approved by the manufacturer must be used 1B Electric Waste Disposal Separate collection is the precondition to ensure specific treatment and recycling of waste electrical and electronic equipment and Is necessary to achieve the chosen level of protection of human health and the environment In the case of waste disposal of your discarded equipment we recommend to contact a waste man agement company 2009 ELTEK VALERE DEUTSCHLAND GmbH UM_DCR_PSR308_4 0LV_HV_E_R1 1 W ELTEK VALERE DC Power Rack always on DCR PSR308 4 0 LV HV User Manual Page 6 24 2 General Information The DC power rack is a unit for integration in system cabinets with standard 19 frame A high voltage HV and low voltage LV version is available The input is suitable for connection to single or three phase mains The DC power rack can be equipped with a maximum of five rectifiers of type PSR308 and one DC controller unit UPC3S and delivers an output power up to 4000W After safe mechanical and electrical connection the unit is ready for operation The DC controller UPC3S Is easy to configure by PC software and adapts the system to the customer s application and battery parameters 2 1 Block Diagram DCR PSR308 4 0 LV HV AC Inputs PSR308 4 A A AA A CAN connectors Connectors E
16. pter 7 2 2 Protection class IP20 E Climatic conditions acc to IEC 721 3 3 class 3K3 3Z1 3B1 3C2 3S2 3M2 RFI suppression immu CE label EN50081 1 EN55011 55022 class B EN50082 2 EN61000 4 nity part 2 3 4 5 Compliance to safety acc to EN60950 1 VDEO100 410 VDE0110 EN60146 standards 5 1 Dimensional Drawings 178 mm 483 mm a gt 318 mm Figure 12 Rack dimensions 2009 ELTEK VALERE DEUTSCHLAND GmbH UM_DCR_PSR308_4 0LV_HV_E_R1 1 W ELTEK VALERE always on Supplier ELTEK VALERE DEUTSCHLAND GmbH GB Industrial Schillerstra e 16 D 32052 Herford T 49 0 5221 1708 210 FAX 49 0 5221 1708 222 Email Info industrial eltekvalere com Internet http www eltekvalere com 2009 ELTEK VALERE DEUTSCHLAND GmbH All rights reserved
17. rating status of the fan rack The following functions are indicated with the front side LED s jgn Fan rack operating 2009 ELTEK VALERE DEUTSCHLAND GmbH UM_DCR_PSR308_4 0LV_HV_E_R1 1 ELTEK VALERE DC Power Rack always on DCR PSR308 4 0 LV HV User Manual Page 10 24 3 Handling 3 1 Storage Power racks must be stored In a dry dust free environment with a storage temperature in accordance with the specific technical data See Section 5 3 2 Commissioning Carefully unpack the unit and mount it on your power supply cabinet 8 screws M6 REMARK Before assembling the modules the CAN Bus termination must be done on the empty rack see the following sections Figure 4 View into the empty DC power rack Slot 1 Slot 2 Slot 3 Slot 4 Slot 5 Slot 6 PSR308 PSR308 PSR308 PSR308 PSR308 UPC3S Figure 5 CAN Bus termination switches Figure 6 Input fuses for the fan rack For details see the section 3 2 2 CAN Bus 2 x 3 15A Termination 2009 ELTEK VALERE DEUTSCHLAND GmbH UM_DCR_PSR308_4 0LV_HV_E_R1 1 W ELTEK VALERE DC Power Rack always on DCR PSR308 4 0 LV HV User Manual Page 11 24 3 2 1 Communication Interface The DCR PSR308 Is equipped with a serial data interface in accordance with the Controller Area Network CAN specification Several power racks and or modules in a system can be controlled and monitored through the CAN Bus by acentral DC controller unit UPC3
18. ual Page 8 24 2 3 Front View Figure 2 DC power rack fully equipped with five rectifiers PSR308 and one DC controller UPC3S Four screws M6 to fix the sub rack to the system cabinet 2 Four screws M6 to fix the fan rack to the sub rack and also to fix the Components of the sub sub rack to the cabinet rack The sub rack is equipped with a fan rack 1U r Two captive screws are used for each module to secure it to the sub Components of the rack 0 modules 2 4 Available Options Cover plate with handle to cover unused slots 1 6 x 19 3U 881 MEC BPL 03 14 B colour RAL 7035 Temperature sensor KTY81 220 T092 with cable of 4m length 302 TMP KTY 04 2009 ELTEK VALERE DEUTSCHLAND GmbH UM_DCR_PSR308_4 0LV_HV_E_R1 1 ELTEK VALERE DC Power Rack always on DCR PSR308 4 0 LV HV User Manual Page 9 24 2 5 Cooling Air Flow Direction The DC Power rack is forced cooled with a fan rack 1U located below the rectifiers The airflow is from bottom to top The fans are monitored and speed controlled dependent on module temperature To provide sufficient air flow a minimum space see item A in figure 3 of 2 HU approx 90 mm ts required between the top of the sub rack and the roof of the power supply cabinet as well as an unob structed supply of atr PSR308 Fan rack Figure 3 Rack air flow 2 6 Fan Rack The fan rack is equipped with two LED indicators which indicate the actual ope
19. xternal connection DC o utput for measuring for CON board signalling amp control lines Figure 1 Block diagram C2009 ELTEK VALERE DEUTSCHLAND GmbH UM DCR PSR308 4 0LV HV E R1 1 DC Power Rack DCR PSR308 4 0 LV HV User Manual Page 7 24 W ELTEK VALERE always on 2 2 Possible Rack Configurations Up to five PSR308 with output voltages according to the table below plus one DC controller UPC3S obligatory can be integrated into one rack Necessary type of Designation of the Article code 4240 DC controller UPC3S Article rack output voltage eee PSR308 24Voc UPC35 24V 301 003 497 00 DCR PSR308 4 0 LV 102 308 517 V02 PSR308 48Voc UPC35 48 60V 301 003 PSR308 60Vwc 297 00 DCR PSR308 4 0 PSR308 110Voc UPC3S 110V 301 003 797 00 HV 102 308 517 HV02 PSR308 220Voc UPC3S 220V 301 003 897 00 Input voltage 100 up to Output power input voltage gt 173Vac Number of installed Output power input voltage gt 173Vac Rectifiers without redundancy n 1 n 2 1 800W 7 7 800W 1600W 800W 2400W 1600W E 5 3200W 2400W Output power input voltage lt 173Vac Number of installed Output power input voltage lt 173Vac Rectifiers without redundancy n 1 without redundancy n 1 012 2009 ELTEK VALERE DEUTSCHLAND GmbH UM_DCR_PSR308_4 0LV_HV_E_R1 1 DC Power Rack ELT EK VALERE DCR PSR308 4 0 LV HV alwayson User Man
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