Liebert Ship-Ahead Input/Output Cabinet NXL User's Manual
Contents
1. 7 Table 6 Recommended lug Sizes cscs occa hv Re Ceux Fue UR RE eS RI RUE ecb ste lenders dr 8 IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS This manual contains important instructions that should be followed during installation of your Lie bert NXL Input Output Cabinet Read this manual thoroughly paying special attention to the sec tions that apply to your installation before working with the UPS Retain this manual for use by installing personnel WARNING Risk of electrical shock Can cause personal injury or death Check for voltage with both AC and DC voltmeters before working within the cabinet Check for voltage with both AC and DC voltmeters before making contact Only properly trained and qualified personnel wearing appropriate safety headgear gloves shoes and glasses should be involved in installing the UPS or preparing the UPS for installation When performing maintenance with any part of the equipment under power service personnel and test equipment should be standing on rubber mats In case of fire involving electrical equipment use only carbon dioxide fire extinguishers or those approved for use in fighting electrical fires Extreme caution is required when performing installation Special safety precautions are required for procedures involving handling installation of the UPS system Observe all safety precautions in this manual before handling or installing the cabinet2. Control wiring and power wiring must be run in separate conduits Aluminum and copper clad aluminum cables are not recommended All wiring is to be in accordance with national and local electrical codes Optional bottom view can be used to bolt input output cabinet to floor and allow the UPS to be positioned This option requires the cabinet to be bolted to the floor 10 Brackets can be removed after the ups has been bolted to the input output cabinet 13 Installation Drawings 14 Ensuring The High Availability Of Mission Critical Data And Applications Emerson Network Power the global leader in enabling business critical Technical Support Service continuity ensures network resiliency and adaptability through Website a family of technologies including Liebert power and cooling www liebert com Monitoring technologies that protect and support business critical systems Liebert solutions employ an adaptive architecture that responds pig ig monitoring emersonnetworkpower com to changes in criticality density and capacity Enterprises benefit Outside the US 614 841 6755 from greater IT system availability operational flexibility and Single Phase UPS reduced capital equipment and operating costs 800 222 5877 upstech emersonnetworkpower com Outside the US 614 841 6755 Three Phase UPS 800 543 2378 powertech emersonnetworkpower com Environmental Systems 800 543 27
3. Verify that the UPS room satisfies the environmental conditions stipulated in the equipment specification paying particular attention to the ambient temperature and air exchange system 1 3 Environmental Considerations 1 3 1 UPS Room The cabinet intended for indoor installation and should be located in a cool dry clean air environ ment When bottom entry 1s used the conduit plate must be installed NOTE The UPS is suitable for mounting on concrete or other non combustible surface only 1 4 Positioning The Liebert NXL Input Output Cabinet is structurally designed to withstand lifting from the base A CAUTION Risk of unit tipping over Can cause equipment damage and personal injury Floor mount brackets must remain attached to the frame until the unit is being placed in its final installed position The final installation will always require the unit to be bolted to another Liebert NXL product Failure to comply with these instructions could result in equipment damage and or injury to personnel Mechanical Installation 1 4 1 1 4 2 1 4 3 Moving the Cabinets The Liebert NXL Input Output Cabinet can be handled with a forklift or similar equipment When moving the unit by forklift care must be taken to protect the panels Do not exceed a 15 degree tilt with the forklift Bottom structure will support the unit only if the forks are completely beneath the unit Handling the cabinet with straps is not authorized Cl
4. AC Power For Business Critical Continuity Liebert NXL Ship Ahead Input Output Cabinet Installation Manual 250 400kVA 60Hz EMERSON Network Power CONTACTING LIEBERT FOR SUPPORT To contact Liebert Services for information or repair service in the United States call 1 800 LIEBERT 1 800 548 2378 Liebert Services offers a complete range of start up services repair services preventive maintenance plans and service contracts For repair or maintenance service outside the 48 contiguous United States contact Liebert Services if available in your area For areas not covered by Emerson Network Power Liebert Services the authorized distributor is responsible for providing qualified factory authorized service For LGS to assist you promptly please have the following information available Part numbers Serial numbers Rating Date purchased Date installed Location Input voltage frequency Output voltage frequency Battery reserve time Product Warranty Registration To register for warranty protection visit the Service and Support section of our Web site at www liebert com Click on Product Registration and fill out the form TABLE OF CONTENTS 1 0 MECHANICAL INSTALLATION 0000 cc eee eee ee ee ee eee ee 2 1 1 Introduction vs eS GN a EE AUS ae nae a 2 1 2 Preliminary Cheeks v
5. Output Power Phases A B C 6 Output Neutral Gd a 7 Ground Al J il EIN d IS d OTT cables must be routed B around the fault braces This is S to prevent the cables from coming in contact with other busbars 11 Installation Drawings Figure4 Bottom cable entry routing and installation order 3 i H s S We 1 6 44 DC POSITIVE ol lis o DC NEGATIVE E DC POSITIVE i GROUND TOP ENTRY A d 99 DC NEGATIVE Hn 3 BYPASS NEUTRAL K KLAE BYPASS NEUTRAL q o0 l o i FAULT BRACE 9290 FAULT BRACE BYPASS INPUT EHI RSEN TA BYPASS INPUT gt BYPASS INPUT PESIIN 2 A FAULT BRACE KAE 620 2 1 RECTIFIER INPUT FAULT BRACE gt RECTIFIER INPUT 62929 WE PHASE C RECTIFIER INPUT RECTIFIER 10 i FAULT BRACE ETE CERE OUTPUT PHASE C FAULT BRACE HORE OUTPUT OUTPUT dl45 575 BB RE 5 GROUND BOTTOM ENTRY lt OUTPUT NEUTRAL N OUTPUT NEUTRAL M o dll o e e o 5 313 gry e 1 ee 1 7 ourPur CONDUI
6. 2 3 5 CONDUIT BYPASS INPUT f 2 3 5 CONDUT 2 3 CONDUT INPUT BYPASS 2 3 CONDUT 2 3 5 CONDUT OUTPUT DC 2 3 5 CONDUT 2 3 CONDUT LOW VOLTAGE 1 5 CONDUIT LOW VOLTAGE 14 1 CONDUIT RTA TOP VIEW BOTTOM VIEW E 76 8 1950 BYPASS NEUTRAL E DC POSITIVE r DC NEGATIVE 5 GROUND BUS 594 LOCATION BERE i TOP ENTRY B T 1508 HON LJ 52 9 SEE NOTE 6 4 PSP TE p 1343 HH esses BYPASS INPUT 4 IBIR E i 0 9 404 RECTIFIER INPUT t E e 3 0 000 as 0o0o 9 i1 Foso 284 OUTPUT 4 52020 1 1 899 2 721 INNER PANEL 09090 REMOVED 1 159 LJ 21 9 FOR CLARITY 4 9 99 7 556 GROUND BUS E BOTTOM ENTRY eH IC OUTPUT D NEUTRAL So 56 14 TYP 1 75 44 TYP DETAILA TYP DETAIL B NOTES 1 ALL DIMENSIONS ARE IN inches mm 2 24 MINIMUM CLEARANCE ABOVE UNIT REQUIRED FOR AIR EXHAUST 3 KEEP CABINET WITHIN 15 DEGREES OF VERTICAL 4 TOP AND BOTTOM CABLE ENTRY AVAILABLE THROUGH REMOVABLE ACCESS PLATES REMOVE PUNCH TO SUIT CONDUIT SIZE AND REPLACE 5 UNIT BOTTOM IS STRUCTURALLY ADEQUATE FOR FORKLIFT HANDLING 6 THESE BRACKETS CAN BE REMOVED DURING INSTALLATION BUT MUST BE REPLACED AFTER INSTALLATION 7 CONTROL WIRING AND POWER WIRING MUST BE RUN IN SEPARATE CONDUITS 8 ALUMINUM AND COPPER CLAD ALUMINUM CABLES ARE NOT RECOMMENDED 9 ALL WIRING IS TO BE IN ACCO
7. Observe all precautions in the Operation and Maintenance Manual SL 25425 before as well as during performance of all maintenance procedures Observe all DC safety precautions before working on or near the DC system WARNING Risk of heavy unit falling over Improper handling can cause equipment damage injury or death Exercise extreme care when handling the cabinet to avoid equipment damage or injury to personnel Locate center of gravity symbols and determine unit weight before handling each cabinet Test lift and balance the cabinets before transporting Maintain minimum tilt from vertical at all times Slots at the base of the modules cabinets are intended for forklift use Base slots will support the unit only if the forks are completely beneath the unit Read all of the following instructions before attempting to move lift remove packaging from or preparing unit for installation WARNING Risk of electrical shock and fire Can cause equipment damage personal injury or death The area around the cabinet should be kept free of puddles of water excess moisture and debris Only test equipment designed for troubleshooting should be used This is particularly true for oscilloscopes Always check with an AC and DC voltmeter to ensure safety before making contact or using tools Even when the power is turned Off dangerously high potential electric charges may exist at the DC connections All wiring must be installed by a properly trai
8. 78 Outside the United States 614 888 0246 Locations United States 1050 Dearborn Drive P O Box 29186 Columbus OH 43229 Europe Via Leonardo Da Vinci 8 Zona Industriale Tognana 35028 Piove Di Sacco PD Italy Rn 39 049 9719 111 every precaution has been taken to ensure the accuracy and completeness of this literature Liebert Corporation assumes no Fax 39 049 5841 257 responsibility and disclaims all liability for damages resulting from use of Asia this information or for any errors or omissions 7 F Dah Sing Financial Centre 2008 Liebert Corporation 108 Gloucester Road Wanchai All rights reserved throughout the world Specifications subject to change H K without notice ong Kong Liebert is a registered trademark of Liebert Corporation 852 2572220 All names referred to are trademarks Fax 852 28029250 or registered trademarks of their respective owners SL 25440_REVO_05 08 Emerson Network Power The global leader in enabling Business Critical Continuity EmersonNetworkPower com AC Power Embedded Computing I Outside Plant Racks amp Integrated Cabinets Connectivity Embedded Power I Power Switching amp Controls Services DC Power Monitoring Precision Cooling Surge Protection Business Critical Continuity Emerson Network Power and the Emerson Network Power logo are trademarks and service marks of Emerson Electric Co 2008 Emerson Electric Co
9. 78BE 750kcmil 54922BE 54880BE Use the T amp B crimping tools recommended for these types of lugs Installation Drawings 3 0 INSTALLATION DRAWINGS Figure 1 2 3 CONDUIT Input output conduit detail drawing 250 300kVA Liebert NXL UPS OUTPUT 2 3 5 CONDUIT C BYPASS INPUT e of 2 3 5 CONDUT 2 3 CONDUT Q 3 INPUT BYPASS 2 3 CONDUIT 2 3 5 CONDUT OUTPUT 2 3 5 CONDUT 2 3 CONDUT LOW VOLTAGE LOW VOLTAGE 15 CONDUIT LOW VOLTAGE 15 CONDUIT 14 1 CONDUT TOP VIEW BOTTOM VIEW SHOWN IN EXTENDED POSITION germ 168 SE eS E 1950 RS Te BYPASS NEUTRAL DC POSITIVE B MW GROUND BUS S M DC NEGATIVE IE us TOP ENTRY TUI 94 1862225 1509 56 4 NS 1432 sog 93 SEE NOTE 6 MEE TERT 1343 49 4 BYPASS INPUT ip 464 1299 J 0 1178 EE 434 EOM RECTIFIER INPUT e iD 702029 sa 00 874 4 0502 797 OUTPUT 4 i 2 INNER PANEL 0000 645 REMOVED desse s od 219 FOR CLARITY 556 24 GROUND BUS j BOTTOM ENTRY off O
10. RDANCE WITH NATIONAL AND LOCAL ELECTRICAL CODES BOTTOM ENTRY 88 X 56 SLOT 6 PLACES EACH BAR 56 4 1432 49 4 1255 434 1102 374 850 314 797 254 645 TYP 10 Installation Drawings Figure3 cable entry routing and installation order OUTPUT CONDUIT INPUT CONDUIT BYPASS CONDUIT f DC CONDUIT e ILo DC POSITIVE EZ A DC NEGATIVE d DC POSITIVE GROUND TOP ENTRY lane DC NEGATIVE fi CERE ren BYPASS NEUTRAL 3 0 BYPASS NEUTRA ZUM BYPASS INPUT ANGE PHASE C FAULT BRACE FAULT BRACE Hf COS BYPASS INPUT BYPASS INPUT 1 geoed RECTIFIER INPUT RO d PHASE C FAULT BRACE Ek gr geb EIS GRE RECTIFIER INPUT 5 44 RECTIFIER INPUT e 9000 00 HEL OUTPUT PHASE C ME FAULT BRACE NO PSU OUTPUT d 14096 2 4 090 GROUND s qreeeees BOTTOM ENTRY E OUTPUT NEUTRAL d E o7 OUTPUT NEUTRAL Pa en M a1 o Le 5 e 1 SIDE VIEW UE Hd 3 Recommended order of installation for cables d _ 1 DC Power Al H 2 Bypass Neutral IY 3 Bypass Input Power Phases A B C If 4 Rectifier Input Power Phases A B C 5
11. T INPUT CONDUIT BYPASS CONDUIT FRONT VIEW w LI f A f Recommended order of installation for cables A 20 1 Output Neutral L 2 Output Power Phases A B C 3 Rectifier Input Power Phases A B C 4 Bypass Input Power Phases A B C o 5 Bypass Neutral Q X B 6 DC Power y o n A 7 Ground ae The cables must be routed aroun e Tau races IS IS ol d the fault braces This i o M to prevent the cables from O coming in contact with Q O other busbars i O ICD 12 Installation Drawings Figure5 Floor mount brackets standard and optional layout 36 8 27 4 935mm 695mm KEEP BRACKETSATTACHED WARNING Brackets MUST remain attached to the frame until the unit is being placed in its final installed position The final installation will always require the unit to be bolted BOTTOM VIEW Optional to another Liebert NXL product Failure to comply with these instructions could result in equipment NOTES damage and or injury to personnel All dimensions are in inches mm 24 minimum clearance above unit required Keep cabinet within 15 degrees of vertical Top and bottom cable entry available through removable access plates Remove punch to suit conduit size and replace Unit bottom is structurally adequate for forklift handling
12. UTPUT um i NEUTRAL 1 i sl o 1 E elo RIGHT SIDE VIEW 0 1 75 BOTTOM De 87 44 22 ENTRY TYP Lt ge 25 E S 0 17 1 75 87 quy NOUS 1 10 TOP 28 ENTRY DETAIL A 56 2 14 NOTES DETAIL B TIR 175 1 ALL DIMENSIONS ARE IN inches mm 443 d 2 24 MINIMUM CLEARANCE ABOVE UNIT REQUIRED FOR AIR EXHAUST TYP Bis 3 KEEP CABINET WITHIN 15 DEGREES OF VERTICAL BOTTOM em 4 TOP AND BOTTOM CABLE ENTRY AVAILABLE THROUGH REMOVABLE ACCESS ENTRY PLATES REMOVE PUNCH TO SUIT CONDUIT SIZE AND REPLACE 5 UNIT BOTTOM IS STRUCTURALLY ADEQUATE FOR FORKLIFT HANDLING 6 THESE BRACKETS CAN BE REMOVED DURING INSTALLATION BUT MUST PLACES gi REPLACED AFTER INSTALLATION EACH BAR DETAILD CA 7 CONTROL WIRING AND POWER WIRING MUST BE RUN IN SEPARATE CONDUITS 8 ALUMINUM AND COPPER CLAD ALUMINUM CABLES ARE NOT RECOMMENDED 9 ALL WIRING IS TO BE IN ACCORDANCE WITH NATIONAL AND LOCAL ELECTRICAL CODES Installation Drawings Figure 2 Input output conduit detail drawing 400kVA Liebert NXL UPS DC OUTPUT 2 3 CONDUIT
13. WG 1 0AWG 2 4 0AWG 1 0AWG Battery Nominal Selection Alternate Selection UPS Rating Voltage VAC Top Cable Entry Input Bottom Cable Entry Input Top Cable Entry Input Bottom Cable Entry Input Wire amp Conduit Wire amp Conduit Wire amp Conduit Wire amp Conduit kVA kW Input Bypass Output Wires G THW FMC Wires G THW RNC Wires G THW FMC Wires G THW RNC 2 2 5 2 350kcmil 2 2 5C 2 350kcmil 3 2C 2 4 0AWG 3 2C 2 4 0AWG pl lease 480 1 0AWG 1 0AWG 1 0AWG 1 0AWG 2 2 5C 2 500kcmil 2 3C 2 500kcmil 3 2C 2 250kcmil 3 2C 2 250kcmil 89 aon 1 0AWG 1 0AWG 1 0AWG 1 0AWG 3 2 5C 2 500kcmil 3 3C 2 500kcmil 4 2C 2 250kcmil 4 2 5C 2 250kcmil 5005 360 j1 480 480 490 4 0AWG 4 0AWG 4 0AWG 4 0AWG If the UPS is used in a four wire system the neutral ground jumper must be removed Electrical Installation Table 6 Recommended lug sizes T amp B Series 54000 T amp B Series 54000 Cable Size One Hole Two Hole 8 AWG 54930BE 54850BE 6 AWG 54905BE 256 30695 868 4 AWG 54906BE 256 30695 733 2 3 AWG 54942BE 54811BE 1 AWG 54947BE 54857BE 1 0 AWG 54950BE 256 30695 593 2 0 AWG 54951BE 54862BE 3 0 AWG 54965BE 54864BE 4 0 AWG 54970BE 54866BE 250kcmil 54913BE 54868BE 300kcmil 54914BE 54870BE 350kcmil 54915BE 54872BE 400kcmil 54916BE 54874BE 500kcmil 54918BE 54876BE 600kcmil 54920BE 548
14. ables is to start from the top connections to the bottom connections The cables must be routed around the fault braces see Detail in Figure 3 This is to prevent the cables from contacting other busbars The recommended conduit layout is shown in Figure 1 Bottom Cable Entry When making the power connections the recommended order of pulling and installing cables is to start from the bottom connections to the top connections The cables must be routed around the fault braces see Detail in Figure 3 This is to prevent the cables from contacting other busbars The recommended conduit layout is shown in Figure 1 NOTE For a Single Input configuration linking busbars must be installed between the bypass and the rectifier input A WARNING Risk of electrical shock Can cause injury or death If the load equipment will not be ready to accept power on the arrival of the commissioning engineer ensure that the system output cables are safely isolated at their termination WARNING Risk of electrical shock Can cause injury or death When connecting the cables between the battery extremities to the circuit breaker always connect the circuit breaker end of the cable first NOTE If fault bracing brackets were removed during installation they MUST be replaced 5 Close and secure the interior and exterior doors Table 1 Current ratings rectifier input UPS Ratin
15. earances Clearance around the front of the equipment should be sufficient to enable free passage of personnel with the doors fully open Installation must leave a distance of 24 610mm between the top of the cabinet and any overhead obstacles to permit adequate circulation of air coming out of the unit Space must be reserved on the left side of the I O cabinet The UPS Rectifier Inverter cabinet can be mounted only on the left side of the I O cabinet Floor Installation Anchoring If the equipment is to be located on a raised floor it should be mounted on a pedestal designed to accept the equipment point loading Refer to the base view to design this pedestal Electrical Installation 2 0 ELECTRICAL INSTALLATION This chapter provides guidelines for qualified installers who must have knowledge of local wiring practices pertaining to the equipment to be installed A Risk of electrical shock Can cause injury or death Check for voltage with both AC and DC voltmeters before working within the cabinet Only properly trained and qualified personnel wearing appropriate safety headgear gloves shoes and glasses should be involved in installing the cabinet or preparing the cabinet for installation 2 1 External Protective Devices For safety circuit breakers must be installed in the input AC supply and external battery system Given that every installation has its own characteristics this section provides guidelines for qualified installa
16. ensure that any busbars between the bypass and the rectifier input are removed When sizing battery cables a maximum volt drop of 2VDC is permissible at the current ratings given in Table 4 Electrical Installation 2 2 1 The following are guidelines only and are superseded by local regulations and codes of practice where applicable Take special care when determining the size of the neutral cable grounded conductor because current circulating on the neutral cable may be greater than nominal current in the case of non linear loads Refer to the values in Tables 2 and 3 The grounding conductor should be sized according to the fault rating cable lengths type of pro tection etc The grounding cable connecting the UPS to the main ground system must follow the most direct route possible Consideration should be given to the use of smaller paralleled cables for heavy currents as this can ease installation considerably Power Cable Connection Procedure Equipment Ground The equipment ground busbar is located as shown in Figure 1 The grounding conductor must be connected to the ground busbar and bonded to each cabinet in the system cabinets and cabling should be grounded in accordance with local regulations NOTICE Proper grounding reduces problems in systems caused by electromagnetic interference WARNING Risk of fire and electrical shock Can cause equipment damage personal injury or death Failure to f
17. g Voltage VAC External External Nominal Maximum 100 Breaker 80 Breaker kVA kW Input Bypass Output Current Current Trip Amps Trip Amps 250 225 480 480 480 313 392 400 500 300 270 480 480 480 376 469 500 600 400 360 480 480 480 500 625 700 800 Table 2 Current ratings bypass input HPS Rating Voltage NAG Nominal 10 Minute External Breaker kVA kW Input Bypass Output Current Overload Trip Amps 250 225 480 480 480 301 376 400 300 270 480 480 480 361 451 500 400 360 480 480 480 481 601 700 Table 3 Current ratings output UPS Rating Voltage VAC Nominal 10 Minute External Breaker kVA kW Input Bypass Output Current Overload Trip Amps 250 225 480 480 480 301 376 400 300 270 480 480 480 361 451 500 400 360 480 480 480 481 601 700 Electrical Installation Table 4 Current ratings battery UPS Rating Maximum Battery External Breaker kVA kW Nominal VDC Current at EOD Trip Amps 250 225 480 615 700 300 270 480 737 800 400 360 480 981 1000 Notes on Tables 1 Nominal input current considered continuous is based on full rated output load Maximum current includes nominal input current and maximum battery recharge current considered noncontinuous Continuous and noncontinuous current are defined in NEC 100 Maximum input current is controlled by the current limit setting which is adjustable Values shown are for maximum setting of 12596 Standard fac
18. ned and qualified electrician All power and control wiring must comply with all applicable national state and local codes One person should never work alone even if all power is disconnected from the equipment A second person should be standing by to assist and to summon help in case of an accident Mechanical Installation 1 0 MECHANICAL INSTALLATION 1 4 Introduction This following section describes the requirements that must be taken into account when planning the positioning and cabling of the Liebert NXL Input Output Cabinet This chapter 1s a guide to general procedures and practices that should be observed by the installing personnel The particular conditions of each site will determine the applicability of such procedures equipment not referred to in this manual is shipped with details of its own mechanical and electrical installation Three phase input supply required The standard Liebert NXL UPS is suitable for connection to three phase four wire Earth TN C TN S IT G IT IG or three phase three wire plus ground IT UG If using with IT Power system a 4 pole disconnect device must be included as part of building installation 1 2 Preliminary Checks Before installing the cabinet please carry out the following preliminary checks Visually examine the cabinet for transit damage both internally and externally Report any dam age to the shipper immediately Verify that the correct equipment is being installed
19. ollow adequate grounding procedures can result in electric shock hazard to personnel or the risk of fire should a ground fault occur operations described in this section must be performed by properly trained and qualified electricians or technical personnel If any difficulties are encountered contact Liebert Services See the back page of this manual for contact information The grounding and neutral bonding arrangement must be in accordance with local and national codes of practice Once the equipment has been positioned and secured connect the power cables as described in the fol lowing procedure Refer to the appropriate cable connection drawing in Figure 3 or 4 1 Verify that the equipment is isolated from its external power source Check that these supplies are electrically isolated and post any necessary warning signs to prevent their inadvertent operation Open exterior and interior panels on the front of the I O Connect the ground and any necessary main bonding jumper to the equipment ground busbar located in the I O section Make power connections and tighten the connections to the proper torque according to one of the two procedures below depending on the type of installation NOTE Ensure correct phase rotation Top Cable Entry see Figure 3 Bottom Cable Entry see Figure 4 Electrical Installation Top Cable Entry When making the power connections the recommended order of pulling and installing c
20. pass Output Ph G THW FMC Ph N G THW RNC Ph N G THW FMC Ph N G THW RNC 250 225 480 480 480 3 2 5C 3 2 0AWG 3 3 42 0AWG 2 3C 3 250kcmil 2 3C 3 250kcmil 2 1 0AWG 1 0AWG 2 1 0AWG 1 0AWG 2 4 0AWG 1 0AWG 2 4 0AWG 1 0AWG 300 270 480 480 480 3 2 5C 3 4 0AWG 3 3C 3 4 0AWG 2 3C 3 350kcmil 2 3 5C 3 350kcmil 2 1 0AWG 1 0AWG 2 1 0AWG 1 0AWG 2 4 0AWG 1 0AWG 2 4 0 AWG 1 0AWG 400 360 480 480 480 3 3C 3 250kcmil 3 3C 3 250kcmil 2 3 5C 3 500kcmil 2 4C 3 500kcmil 2 4 0AWG 1 0AWG 2 4 0AWG 1 0AWG 2 350kcmil 1 0AWG 2 350kcmil 1 0AWG Output Nominal Selection Alternate Selection UPS Rating Voltage VAC Top Cable Entry Input Bottom Cable Entry Input Top Cable Entry Input Bottom Cable Entry Wire amp Conduit Wire amp Conduit Wire amp Conduit Input Wire amp Conduit kVA kW Input Bypass Output Ph G THW FMC Ph G THW RNC Ph N G THW FMC Ph N G THW RNC 250 225 480 480 480 3 2 5C 3 2 0AWG 3 3 42 0AWG 3 2 5C 3 2 0AWG 3 3 2 0AWG 2 1 0AWG 1 0AWG 2 1 0AWG 1 0AWG 2 1 0AWG 1 0AWG 2 1 0AWG 1 0AWG 300 270 480 480 480 3 2 5C 3 4 0AWG 3 3C 3 4 0AWG 3 2 5C 3 4 0AWG 3 3C 3 4 0AWG 2 1 0AWG 1 0AWG 2 1 0AWG 1 0AWG 2 1 0AWG 1 0AWG 2 1 0AWG 1 0AWG 400 360 480 480 480 3 3C 3 250kcmil 3 3C 3 250kcmil 3 3C 3 250kcmil 3 3C 3 250kcmil 2 4 0AWG 1 0AWG 2 4 0AWG 1 0AWG 2 4 0A
21. tion personnel with knowledge of operating practices regulatory standards and the equip ment to be installed External overcurrent protection must be provided See Tables 1 through 4 for overload capacity Dual Input When wiring the cabinet with a separate rectifier and bypass input each input must be protected sep arately Size the breakers according to the input currents shown in Tables 1 and 2 2 2 Power Cables The UPS will require both power and control cabling All control cables whether shielded or not should be run separate from the power cables in metal conduits or metal ducts which are electrically bonded to the metalwork of the cabinets to which they are connected The cable design must comply with the voltages and currents in Tables 1 through 4 follow local wir ing practices and take into consideration the environmental conditions temperature and physical support equipment and methods room temperature and conditions of installation of the cable and system s overload capacity For cable entry terminal refer to Figure 1 A WARNING Risk of electrical shock Can cause injury or death Before cabling the UPS ensure that you are aware of the location and operation of the external isolators that connect the input bypass supply to the power distribution panel Check that these supplies are electrically isolated and post any necessary warning signs to prevent their inadvertent operation NOTICE For dual input operation
22. tory setting is 125 2 Recommended bypass external overcurrent protection is based on 12596 overload capacity for 10 minutes 3 All recommended external overcurrent protections are based on 8096 rated breakers 4 Nominal battery voltage is shown at 2 0 volts cell Table 5 Recommended conduit and cable sizes Rectifier Input Nominal Selection Alternate Selection Voltage UPS Rating VAC Top Cable Entry Input Bottom Cable Entry Top Cable Entry Input Bottom Cable Entry Wire amp Conduit Input Wire amp Conduit Wire amp Conduit Input Wire amp Conduit kVA kW Input Bypass Output Ph G THW FMC Ph G THW RNC Ph G THW Ph G THW RNC 2 2 5C 3 250kcmil 2 2 5C 3 250kcmil 3 2C 3 42 0AWG 3 2C 3 2 0AWG 250 225 480 480 480 1 0AWG 1 0AWG 0AWG 1 0AWG 2 3C 3 350kcmil 2 3C 3 350kcmil 3 2 5C 3 44 0AWG 3 2 5C 3 4 0AWG 300 270 480 480 480 1 0AWG 1 0AWG 1 0AWG 1 0AWG 2 3C 3 500kcmil 2 3 5C 3 500kcmil 3 2 5C 3 250kcmil 8 2 5C 3 250kcmil 400 360 480 480 480 1 0AWG 1 0AWG 1 0AWG 1 0AWG Bypass Input Nominal Selection Alternate Selection UPS Rating Voltage VAC Top Cable Entry Input Bottom Cable Entry Top Cable Entry Input Bottom Cable Entry Wire amp Conduit Input Wire amp Conduit Wire amp Conduit Input Wire amp Conduit kVA kW Input By
23. yet XS 2 1 8 Environmental Considerations 2 1 4 e REDE 2 2 0 ELECTRICAL INSTALLATIONS s sw iR web eee aes 4 2 1 External Protective 4 2 2 Power Cabl g nec cette Anis bague ei cae dat SE refs 4 3 0 INSTALLATION DRAWINGS DC D eR ee Ka CR OR CARERE Rd 9 FIGURES Figurel Input output conduit detail drawing 250 300kVA Liebert NXL UPS 9 Figure2 Input output conduit detail drawing 400kVA Liebert NXL 10 Figure 3 Top cable entry routing and installation 11 Figure4 Bottom cable entry routing and installation 12 Figure5 Floor mount brackets standard and optional layout 13 TABLES Table 1 Current ratings rectifier input cesses eee rs 6 Table 2 Current ratings bypass input hs 6 Table 3 Current ratings output a2 osse tere Ee St e Ro Rte ER pe RR E We ly ee UR n 6 Table 4 Current Yatings batbtery odor ete ese eer e aged Deer I de whe 7 Table 5 Recommended conduit and cable sizes
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