Emerson Liebert NXL 250 Installation Manual Download

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Specifications

Table 7

Liebert NXL Maintenance Bypass Cabinet current ratings—System Input

UPS Rating

Voltage (VAC)

System Input

kVA

Input

Bypass

Output

Nominal

Current

10 Minute

Overload

External Breaker

Trip,

Amps

250

225

480

301

376

400

300

270

480

361

451

500

400

360

480

481

601

700

Table 8

Liebert NXL Maintenance Bypass Cabinet current ratings—System Output

UPS Rating

Voltage, VAC

System Output

kVA

Input

Bypass

Output

Nominal

Current

10 Minute

Overload

External Breaker

Trip,

Amps

250

225

480

301

376

400

300

270

480

361

451

500

400

360

480

481

601

700

Table 9

Recommended conduit and cable sizes—Maintenance Bypass Input

UPS Rating

System Input Voltage (VAC)

Maintenance Bypass Input

Nominal Selection

Alternate Selection

Top Cable Entry

Wire & Conduit

Ph, N, G THW / FMC

Bottom Cable Entry

Wire & Conduit

Ph, N, G THW / RNC

Top Cable Entry

Wire & Conduit

Ph, N, G THW / FMC

Bottom Cable Entry

Wire & Conduit

Ph, N, G THW / RNC

kVA

Rectifier Bypass

Maint

Byp

Output

250

225

480

(2) 3C 3-250kcmil,

2-250kcmil, #1/0AWG

(2) 3C 3-250kcmil,

2-250kcmil, #1/0AWG

(3) 2C 3-#2/0AWG,

2-#2/0AWG, #1/0AWG

(3) 2.5C 3-#2/0AWG,

2-#2/0AWG, #1/0AWG

300

270

480

(2) 3.5C 3-350kcmil,

2-350kcmil, #1/0AWG

(2) 3.5C 3-350kcmil,

2-350kcmil, #1/0AWG

(3) 3C 3-#4/0AWG,

2-#4/0AWG, #1/0AWG

(3) 3C 3-#4/0AWG,

2-#4/0AWG, #1/0AWG

400

360

480

(2) 4C 3-500kcmil,

2-500kcmil, #1/0AWG

(2) 4C 3-500kcmil,

2-500kcmil, #1/0AWG

(3) 3C 3-250kcmil,

2-250kcmil, #1/0AWG

(3) 3C 3-250kcmil,

2-250kcmil, #1/0AWG

500

450

480

(3) 3.5C 3-500kcmil,

2-250kcmil , #1/0AWG

(3) 4C 3-500kcmil,

2-250kcmil , #1/0AWG

(4) 3C 3-250kcmil,

2-#4/0AWG, #1/0AWG

(4) 3C 3-250kcmil,

2-#4/0AWG, #1/0AWG

Table 10

Recommended conduit and cable sizes—Rectifier Input (1-Input System)

UPS Rating

System Input Voltage (VAC)

Rectifier Input (1-Input System)

Nominal Selection

Alternate Selection

kVA

Rectifier Bypass

Maint

Byp

Output

Top Cable Entry

Wire & Conduit

Ph, N, G, THW / FMC

Bottom Cable Entry

Wire & Conduit

Ph, N, G THW / RNC

Top Cable Entry

Wire & Conduit

Ph, N, G THW / FMC

Bottom Cable Entry

Wire & Conduit

Ph, N, G THW / RNC

250

225

480

(2) 2.5C 3-250kcmil,

#1/0AWG

(2) 2.5C 3-250kcmil,

#1/0AWG

(3) 2C 3-#2/0AWG,

#1/0AWG

(3) 2C 3-#2/0AWG,

#1/0AWG

300

270

480

(2) 3C 3-350kcmil,

#1/0AWG

(2) 3C 3-350kcmil,

#1/0AWG

(3) 2.5C 3-#4/0AWG,

#1/0AWG

(3) 2.5C 3-#4/0AWG,

#1/0AWG

400

360

480

(2) 3C 3-500kcmil,

#1/0AWG

(2) 3.5C 3-500kcmil,

#1/0AWG

(3) 2.5C 3-250kcmil,

#1/0AWG

(3) 2.5C 3-250kcmil,

#1/0AWG

500

450

480

(3) 3C 3-500kcmil,

#2/0AWG

(3) 3.5C 3-500kcmil,

#2/0AWG

(4) 2.5C 3-250kcmil,

#2/0AWG

(4) 3C 3-250kcmil,

#2/0AWG

Summary of Contents for Liebert NXL 250

Page 1: ...AC Power For Business Critical Continuity Liebert NXL Maintenance Bypass Cabinet Installation Manual 250 400kVA 60Hz ...

Page 2: ...n available Part Numbers ________________________________________________________________ Serial Numbers _______________________________________________________________ kVA Rating __________________________________________________________________ Date Purchased _______________________________________________________________ Date Installed ___________________________________________________________...

Page 3: ... 2 Preliminary Checks 2 1 3 Environmental Considerations 2 1 3 1 Room 2 1 3 2 Storage 3 1 4 Positioning 3 1 4 1 Moving the Cabinets 3 1 4 2 Clearances 3 1 4 3 Floor Installation Anchoring 3 1 5 Cable Entry 3 1 6 Power Cables 4 1 6 1 Power Cable Connection Procedure 5 2 0 INSTALLATION DRAWINGS 7 3 0 SPECIFICATIONS 26 ...

Page 4: ...nce Bypass Cabinet Control wire diagram without interlock 22 Figure 16 Liebert NXL Maintenance Bypass Cabinet control wire diagram with interlock 23 Figure 17 Liebert NXL Maintenance Bypass Cabinet control wire routing 24 Figure 18 Ground strap location for connected cabinets 25 TABLES Table 1 Liebert supplied interconnect wiring for one input Liebert NXL Maintenance Bypass Cabinet 17 Table 2 Lieb...

Page 5: ...serve all precautions in the Operation and Maintenance Manual before as well as during performance of all maintenance procedures This equipment contains circuits that are energized with high voltage 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 tool...

Page 6: ... stipulated in the equipment specifica tions paying particular attention to the ambient temperature and air exchange system 1 3 Environmental Considerations 1 3 1 Room The Maintenance Bypass Cabinet is intended for indoor installation and should be located in a cool dry clean air environment with adequate ventilation to keep the ambient temperature within the specified operating range see 3 0 Spec...

Page 7: ...ns of a fork lift or similar equipment For operations with a fork lift refer to installation drawings in 2 0 Installation Drawings Because the weight distribution in the cabinet is uneven use extreme care during handling and transporting 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 ...

Page 8: ...on linear loads Refer to Tables 7 and 8 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 Consider using smaller paralleled cables for heavy currents as a way of easing installation Figure 1 Cabinet arrangement Liebert NXL UPS battery...

Page 9: ...ings The grounding conductor must be connected to the ground busbar All cabinets and cable trunking should be grounded in accordance with local regulations WARNING Failure to follow adequate grounding procedures can result in electric shock hazard to personnel or the risk of fire should an ground fault occur WARNING The operations described in this section must be performed by authorized electrici...

Page 10: ...nance bypass cabinet and the UPS bypass input supply busbars A B C or A B C N terminals and tighten the connections to the proper torque Ensure correct phase rotation 6 If system is single input connect AC jumper connectors between UPS bypass input supply busbars and UPS rectifier input supply busbars A B C terminals and tighten the connections to the proper torque Ensure correct phase rotation 7 ...

Page 11: ...em Critical Load BFB CB2 CB1 MBD MBB MIB FBO UPS Module Two Breaker Maintenance Bypass Cabinet Main Input Switchgear Load Bank FBO N EG MBJ DC Bus I MIB Maintenance Isolation Breaker MBB Maintenance Bypass Breaker FBO Furnished By Others N Neutral EG Equipment Ground MBJ Main Bonding Jumper 3 wire systems only Option Interlock I ...

Page 12: ...ion Breaker BIB Bypass Input Breaker MBB Maintenance Bypass Breaker FBO Furnished By Others N Neutral EG Equipment Ground MBJ Main Bonding Jumper 3 wire systems only Option Interlock I Battery System Critical Load BFB CB2 CB1 MBD MBB MIB FBO FBO UPS Module Two Breaker Maintenance Bypass Cabinet Main Input Switchgear I FBO Load Bank FBO MIB Maintenance Isolation Breaker BIB Bypass Input Breaker MBB...

Page 13: ...ocation MAINTENANCE ISOLATION BREAKER MIB MAINTENANCE BYPASS BREAKER MBB CONTROL WIRING TERMINAL BLOCK TB1 OPTIONAL SOLENOID INTERLOCK GROUND INPUT PHASE B NEUTRAL OUTPUT PHASE B INPUT PHASE A INPUT PHASE C OUTPUT PHASE A OUTPUT PHASE C BREAKER REMOVED FOR CLARITY B A A FRONT SECTION A A BUSBAR DETAIL B ...

Page 14: ...B MAINTENANCE BYPASS BREAKER MBB MAINTENANCE ISOLATION BREAKER MIB CONTROL WIRING TERMINAL BLOCK TB1 OPTIONAL SOLENOID INTERLOCK GROUND INPUT PHASE B NEUTRAL OUTPUT PHASE B INPUT PHASEA INPUT PHASE C OUTPUT PHASE A OUTPUT PHASE C NEUTRAL BUSBAR LOCATED IN REAR CORNER FOR ADDITIONAL LANDING SPACE A A FRONT SECTION A A BUSBAR DETAIL B ...

Page 15: ...hich are bolted togethe r 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 10 Widths are without side panels The width is 25 6 650mm with side panels 11 The depth dimension includes the front door and rear panel CG CG KNOCK OUT FOR CONTROL WI...

Page 16: ...ithin 15 degrees of vertical while handling 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 Includes side panel Side panels are removed between adjacent units which are bolted together 7 Control wiring and power wiring must be run in separate conduits 8 Aluminum and c...

Page 17: ...50 and 300kVA terminal details BREAKER REMOVED FOR CLARIT Y NOTE ALL DIMENSIONS ARE IN inches mm CUSTOMER CONNECTION O 6 14 8 PLACES TYP 1 6 40 2 0 51 2 6 65 1 8 45 2 0 51 2 6 65 1 8 44 1 8 45 4 8 123 TYP A FRONT VIEW TOP VIEW SIDE VIEW BUS BAR DETAILA BUS TERMINATION DETAIL ...

Page 18: ...IN inches mm BOTTOM ENTRY TOP ENTRY CUSTOMER CONNECTION AREA O 56 14 TYPICAL 24 PLACES 1 37 X 56 SLOT TYPICAL 20 PLACES O 56 14 8 PLACES TYP A 3 1 79 1 59 40 2 00 51 2 57 65 1 78 45 2 00 51 2 57 65 1 75 44 1 75 44 4 84 123 4 59 117 TYP 1 75 44 TYP 1 75 44 TYP BUSBAR DETAIL A BUS TERMINATION DETAIL TOP VIEW SIDE VIEW FRONT VIEW AUX NEUTRAL BUS DETAIL ...

Page 19: ... The UPS output phase cables must be run on the left side of cabinet outside of the ground bus Output Phase B Neutral Ground Input UPS Output Phases BREAKERS REMOVED FOR CLARITY BOTTOM ENTRY NOTES 1 Cables from upper busbars must be routed so that they run clear of lower busbars Maintenance Isolation Breaker MIB Busbar Input Phase A Input Phase C Output Phase A Output Phase C TOP CABLE ENTRY ROUTI...

Page 20: ...ure 12 Liebert NXL Maintenance Bypass Cabinet one input system point to point wiring to UPS N O P E B A T C R Q S H G K J I P O N D L M U REAR MIB MBB BYPASS NEUTRAL C B A F C B A C B A L OUTPUT NEUTRAL M V V H F G I J K FRONT UPS ...

Page 21: ...PS Bypass AC Phase A UPS Rectifier AC Phase A UPS Rectifier Input Phase A J UPS Bypass AC Phase B UPS Rectifier AC Phase B UPS Rectifier Input Phase B K UPS Bypass AC Phase C UPS Rectifier AC Phase C UPS Rectifier Input Phase C L MBC Neutral UPS Bypass Neutral UPS Neutral M MBC Ground UPS Equipment Ground UPS Ground N UPS Output AC Phase A MBC Output AC Phase A UPS Output Phase A O UPS Output AC P...

Page 22: ...Figure 13 Liebert NXL Maintenance Bypass Cabinet two input system point to point wiring to UPS N O P E B A T C R Q S H G K J I P O N D L M U REAR MIB MBB BYPASS NEUTRAL C B A F C B A C B A L OUTPUT NEUTRAL M V V H G F FRONT UPS ...

Page 23: ... Bypass AC Phase A UPS Rectifier AC Phase A UPS Rectifier Input Phase A J Utility Bypass AC Phase B UPS Rectifier AC Phase B UPS Rectifier Input Phase B K Utility Bypass AC Phase C UPS Rectifier AC Phase C UPS Rectifier Input Phase C L MBC Neutral UPS Bypass Neutral UPS Neutral M MBC Ground UPS Equipment Ground UPS Ground N UPS Output AC Phase A MBC Output AC Phase A UPS Output Phase A O UPS Outpu...

Page 24: ...Figure 14 Liebert NXL Maintenance Bypass Cabinet three input system point to point wiring to UPS N O P E B A T C R Q S H G K J I P O N D L M U REAR MIB MBB P1 BYPASS NEUTRAL C B A F C B A C B A P1 OUTPUT NEUTRAL M V V FRONT UPS ...

Page 25: ...S Rectifier AC Phase A UPS Rectifier Input Phase A J Utility AC Phase B UPS Rectifier AC Phase B UPS Rectifier Input Phase B K Utility AC Phase C UPS Rectifier AC Phase C UPS Rectifier Input Phase C L Utility Neutral UPS Neutral UPS Neutral M MBC Ground UPS Equipment Ground UPS Ground N UPS Output AC Phase A MBC Output AC Phase A UPS Output Phase A O UPS Output AC Phase B MBC Output AC Phase B UPS...

Page 26: ...nnections at UPS External Interface Board EIB TB0823 TB0813 TB0811 TB0821 02 806708 1 3 TB0821 1 3 1 3 TB0811 TB0813 1 3 TB0824 Table 4 Control wiring connections without interlock From To Purpose TB1 1 Customer EPO Push Button Switch EPO Signal TB1 2 Customer EPO Push Button Switch TB1 3 TB0821 2 Maint Bypass Enable Contacts TB1 4 TB0821 1 TB1 5 TB0824 3 UPS REPO Contacts TB1 6 TB0824 2 TB1 7 TB0...

Page 27: ...IB TB0820 TB0824 TB0813 TB0811 TB0821 02 806708 1 3 TB0820 TB0821 1 3 1 3 1 3 TB0811 TB0813 1 3 TB0824 TB1 3 Table 5 Control wiring connections with interlock From To Purpose TB1 1 Customer EPO Push Button Switch EPO Signal TB1 2 Customer EPO Push Button Switch TB1 3 TB0821 2 Maintenance Bypass Enable Contacts TB1 4 TB0821 1 TB1 5 TB0824 3 UPS REPO Contacts TB1 6 TB0824 2 TB1 7 TB0824 1 TB1 8 TB08...

Page 28: ... Liebert NXL Maintenance Bypass Cabinet control wire routing CONDUIT KNOCK OUTS FOR CONTROL WIRING CONDUIT KNOCK OUTS FOR CONTROL WIRING INTERNAL ROUTING FOR CONTROL WIRING INTERNAL ROUNTING FOR CONTROL WIRING A A SECTION A A FRONT VIEW ...

Page 29: ...d strap location for connected cabinets Reference of corner post of connected cabinets Cabinet to Cabinet Bolting Instructions Typical Ground Strap Installation FRONT SIDE OF UNITS Use for all connected units except Battery Cabinet A DETAIL A ...

Page 30: ...Depth in mm 33 5 850 33 5 850 39 4 1000 Height in mm 76 8 1950 Weight lb kg 755 342 5 Color Charcoal ZP 0420 Front Door Opening for serviceability More than 180 Degree of Protection for UPS Enclosure IP 20 with and without front door open Standards and Conformities UL 1778 CSA 22 2 107 3 FCC Part 15 Class A ISTA Procedure 1H WEEE Minimum clearance Top in mm 24 610 Minimum clearance Back in mm 0 Mi...

Page 31: ...0AWG 300 270 480 480 480 480 2 3 5C 3 350kcmil 2 350kcmil 1 0AWG 2 3 5C 3 350kcmil 2 350kcmil 1 0AWG 3 3C 3 4 0AWG 2 4 0AWG 1 0AWG 3 3C 3 4 0AWG 2 4 0AWG 1 0AWG 400 360 480 480 480 480 2 4C 3 500kcmil 2 500kcmil 1 0AWG 2 4C 3 500kcmil 2 500kcmil 1 0AWG 3 3C 3 250kcmil 2 250kcmil 1 0AWG 3 3C 3 250kcmil 2 250kcmil 1 0AWG 500 450 480 480 480 480 3 3 5C 3 500kcmil 2 250kcmil 1 0AWG 3 4C 3 500kcmil 2 2...

Page 32: ...0kcmil 1 0AWG 2 3 5C 3 350kcmil 2 350kcmil 1 0AWG 3 3C 3 4 0AWG 2 4 0AWG 1 0AWG 3 3C 3 4 0AWG 2 4 0AWG 1 0AWG 400 360 480 480 480 480 2 4C 3 500kcmil 2 500kcmil 1 0AWG 2 4C 3 500kcmil 2 500kcmil 1 0AWG 3 3C 3 250kcmil 2 250kcmil 1 0AWG 3 3C 3 250kcmil 2 250kcmil 1 0AWG 500 450 480 480 480 480 3 3 5C 3 500kcmil 2 250kcmil 1 0AWG 3 4C 3 500kcmil 2 250kcmil 1 0AWG 4 3C 3 250kcmil 2 4 0AWG 1 0AWG 4 3C...

Page 33: ... paralleled cables for heavy currents as a way to ease installation In most installations the load equipment is connected to a distribution network of individually protected busbars fed by the maintenance bypass cabinet output rather than being connected directly to the Maintenance bypass cabinet itself Where this is the case the maintenance bypass cabinet output cables can be rated to suit the in...

Page 34: ...Specifications 30 ...

Page 35: ......

Page 36: ...ration All names referred to are trademarks or registered trademarks of their respective owners Technical Support Service Web Site www liebert com Monitoring 800 222 5877 monitoring emersonnetworkpower com Outside the US 614 841 6755 Single Phase UPS 800 222 5877 upstech emersonnetworkpower com Outside the US 614 841 6755 Three Phase UPS 800 543 2378 powertech emersonnetworkpower com Environmental...

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