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Summary of Contents for Emerson Liebert NXL 250
- Page 1 Liebert ® ™ Installation Manual – 250-400kVA, 60Hz, Three Phase Single-Module AC Power For Business-Critical Continuity™...
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Page 2: Product Warranty Registration
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. -
Page 3: Table Of Contents
ONTACTING IEBERT FOR MPORTANT AFETY NSTRUCTIONS INGLE ODULE ECHANICAL Introduction ..............3 Preliminary Checks . - Page 4 Figure 1 Cabinet arrangement—Liebert NXL, battery cabinets, maintenance bypass cabinet ..5 Figure 2 External Interface Board connections layout ......... . 8 Figure 3 Main components location, 250kVA Liebert NXL UPS .
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Page 5: Save These Instructions
MPORTANT AFETY NSTRUCTIONS SAVE THESE INSTRUCTIONS This manual contains important instructions that should be followed during installation of your Liebert NXL ™ UPS.Read this manual thoroughly, paying special attention to the sections that apply to your installation, before working with the UPS. Retain this manual for use by installing per- sonnel. - Page 6 NOTE Emerson Network Power neither recommends nor knowingly sells this product for use with life support or other FDA-designated “critical” devices. NOTICE This unit complies with the limits for a Class A digital device, pursuant to Part 15 Subpart J of the FCC rules.
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Page 7: Single -Module Mechanical Installation
This following section describes the requirements that must be taken into account when planning the positioning and cabling of the Liebert NXL uninterruptible power supply and related equipment. This chapter is a guide to general procedures and practices that should be observed by the installing personnel. -
Page 8: Storage
1.3.2 Storage Should the equipment not be installed immediately, it must be stored in a room for protection against excessive humidity and or heat sources (see Environmental Parameters in Table 6). Positioning The cabinet is structurally designed to handle lifting from the base. Access to the power terminals, auxiliary terminals blocks and power switches is from the front. -
Page 9: Cable Entry
Cable Entry Cables can enter the UPS cabinet from bottom or top into the Input/Output (I/O) section of the unit, see the figures in 4.0 - Installation Drawings. Figure 1 Cabinet arrangement—Liebert NXL, battery cabinets, maintenance bypass cabinet Additional Battery Cabinet(s) Additional Battery... -
Page 10: Ups Electrical Installation
UPS E LECTRICAL This chapter provides guidelines for qualified installers who must have knowledge of local wiring practices pertaining to the equipment to be installed. WARNING Risk of electrical shock. Can cause injury or death. The UPS contains high DC as well as AC voltages. Check for voltage with both AC and DC voltmeters before working within the UPS. -
Page 11: Power Cable Connection Procedure
The following are guidelines only and 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. -
Page 12: Control Cable And Communications
Bottom Cable Entry When making the power connections for bottom cable entry, the recommended order of pull- ing 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 9). This is to prevent the cables from contacting other busbars. -
Page 13: Table 2 Control Or Status Inputs
2.3.1 Dry Contacts Volt-free and isolated contacts are used for interfacing to customer connections external to the NXL unit. These circuits use at least 8mA of current at +24V. NOTE All auxiliary cables must be segregated from power circuits (for shielding), must be double- insulated and should be 12-24AWG (2.5-0.2mm ft. -
Page 14: Table 4 Control Status Output Contact
Switch Auxiliary Inputs Dry Contacts Table 3 Circuit breaker or switch auxiliary contact Inputs Item Rectifier Input Breaker (RIB), Form C Maintenance Isolation Breaker (MIB), Form C Bypass Input Breaker (BIB), Form C Maintenance Bypass Breaker (MBB), Form C Control Status Output Dry Contacts Status signals are outputs through volt-free, normally open and normally closed contacts. -
Page 15: O Ptional E Quipment
PTIONAL QUIPMENT Single-Module System Options 3.1.1 Matching Maintenance Bypass Cabinet A matching Liebert NXL Maintenance Bypass cabinet is available. See Maintenance Bypass Cabinet Installation Manual (SL-24532) for more details. 3.1.2 Battery Temperature Sensor The optional external battery temperature sensor kit, supplied separately from the battery circuit breaker, contains one probe and one temperature transport board. -
Page 16: Installation Drawings
NSTALLATION RAWINGS Figure 3 Main components location, 250kVA Liebert NXL UPS HMI Screen Module Output Circuit Breaker (CB2) Backfeed Breaker (BFB) EMO Button (optional) Liebert ® Intellislot Bays Customer Interface Board Main Input Circuit Breaker (CB1) Option Box (6 slots available) Input/Output Connections (Behind Inner Door) -
Page 17: Figure 4 Outline Drawing, 250Kva Liebert Nxl Ups
Figure 4 Outline drawing, 250kVA Liebert NXL UPS 71.8" (1823mm) 26.1 (664mm) 4.7 (120) (typ.) (115) (216) (216) (210) 27" (685mm) 9.8" 9.8" 9.8" (250) (250) (250) 3.1" (80) (typ) NOTES: 1. All dimensions are in inches (mm). 2. 24" minimum clearance above unit required for air exhaust. -
Page 18: Figure 5 Main Components Location, 300Kva Liebert Nxl Ups
Figure 5 Main components location, 300kVA Liebert NXL UPS HMI Screen Module Output Circuit Breaker (CB2) Backfeed Breaker (BFB) Doors and Inner Skins Removed EMO Button Liebert (optional) Intellislot Bays Customer Interface Board Main Input Circuit Breaker (CB1) Option Box (6 slots available) Input/Output Cabinet... -
Page 19: Figure 6 Outline Drawing, 300Kva Liebert Nxl Ups
Installation Drawings Figure 6 Outline drawing, 300kVA Liebert NXL UPS... -
Page 20: Figure 7 Input/Output Conduit Detail Drawing, 250-300Kva Liebert Nxl Ups
Figure 7 Input/output conduit detail drawing, 250-300kVA Liebert NXL UPS LOW VOLTAGE 1.5" CONDUI T TOP VIEW DC POSITIVE DC NEGATIVE SEE NOTE 6 FRONT ( 14 ) ( 22 ) 1.75 ( 44 ) ( 22 ) DETAIL A NOTES: 1. -
Page 21: Figure 8 Top Cable Entry Routing And Installation Order
Figure 8 Top cable entry routing and installation order DC (POSITIVE) DC (NEGATIVE) GROUND (TOP ENTRY) BYPASS NEUTRAL FAULT BRACE BYPASS INPUT BYPASS INPUT FAULT BRACE RECTIFIER INPU T RECTIFIER INPU T FAULT BRACE OUTPUT OUTPUT GROUND (BOTTOM ENTRY) OUTPUT NEUTRAL FRONT VIEW OUTPUT CONDUIT FAULT BRACE... -
Page 22: Figure 9 Bottom Cable Entry Routing And Installation Order
Figure 9 Bottom cable entry routing and installation order DC (POSITIVE) DC (NEGATIVE) GROUND (TOP ENTRY) BYPASS NEUTRAL FAULT BRACE BYPASS INPUT BYPASS INPUT FAULT BRACE RECTIFIER INPU T RECTIFIER INPUT FAULT BRACE OUTPUT OUTPUT GROUND (BOT TOM ENTRY) OUTPUT NEUTRAL FRONT VIEW FAULT BRACE BYPASS INPUT... -
Page 23: Figure 10 Input/Output Terminal Detail, 400Kva Liebert Nxl Ups
Figure 10 Input/output terminal detail, 400kVA Liebert NXL UPS LOW VOLTAGE 1.5" CONDUI T TOP VIEW DC POSITIVE DC NEGATIVE SEE NOTE 6 FRONT O .56 (14 ) ( 22 ) .98 ( 25 ) 1.75 (44 ) (22) 1.10 ( 28 ) DETAIL A NOTES:... -
Page 24: Figure 11 Main Components, 400Kva Liebert Nxl Ups
Figure 11 Main components, 400kVA Liebert NXL UPS MODULE OUTPU T CIRCUIT BREAKER (CB2) FRONT DOORS REMOVED DOORSAND INNER SKINS REMOVED EMO BUTTON OPTIONAL HMI SCREEN MAIN INPUT BACKFEED CIRCUIT BREAKER (CB1) BREAKER (BFB) Installation Drawings EXTERNAL INTERFACE BOARD (EIB) OPTION BOX (6 SLOTS) -
Page 25: Figure 12 Outline Drawing, 400Kva Liebert Nxl Ups
Figure 12 Outline drawing, 400kVA Liebert NXL UPS 25.8 (655) 29.5 ( 749) 10.6 12.4 (95) ( 269) ( 316) 32.9 (835) ( 80 ) BOTTOM VIEW 69.5 (1766) TOP VIEW NOTES: 1. All dimensions are in inches (mm). 2. 24" minimum clearance above unit required for air exhaust. 3. -
Page 26: Figure 13 Ground Strap Location For Connected Cabinets
Figure 13 Ground strap location for connected cabinets REFERENCE OF CORNER-POST OF CONNECTED CABINETS Cabinet-to-Cabinet Bolting Instructions FRONT SIDE OF UNITS Typical Ground Strap Installation ( Use for all connected units except battery cabinet ) Installation Drawings Detail A... -
Page 27: Specifications
PECIFICATIONS Table 6 Liebert NXL UPS specifications Input Parameters Permissible Input Frequency Range, Hz Input THDi at Nominal Voltage at Full Load, % Battery & DC Parameters Minimum End of Discharge Voltage, VDC DC Ripple Voltage in Float & Const V Ch. Mode, % Temperature Compensated Battery Charging Output Parameters Output Voltage Regulation (100% Unb. - Page 28 Table 6 Liebert NXL UPS specifications (continued) Physical Parameters and Standards, in (mm) Weight, Unpackaged, lb (kg) approx. Max heat Dissipation, Full Load, BTU/hr Front Door Opening (for serviceability) Degree of Protection for UPS Enclosure Minimum Clearance, Top, in (mm) Minimum Clearance, Back, in (mm) Minimum Clearance, Sides, in (mm) Environmental Parameters...
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Page 29: Table 7 Liebert Nxl System And Inverter Efficiencies
Table 7 Liebert NXL system and inverter efficiencies UPS Rating Voltage, VAC Input Bypass Table 8 Current ratings—rectifier input UPS Rating Voltage, VAC Input Bypass Output Table 9 Current ratings—bypass input UPS Rating Voltage, VAC Input Bypass Table 10 Current ratings—output UPS Rating Voltage, VAC Input... -
Page 30: Table 12 Recommended Conduit And Cable Sizes
Table 12 Recommended conduit and cable sizes Rectifier Input Voltage UPS Rating (VAC) Top Cable Entry Input Input Bypass Output Bypass Input UPS Rating Voltage (VAC) Top Cable Entry Input Input Bypass Output Ph, N, G THW / FMC 2-250kcmil, #1/0AWG 2-350kcmil, #1/0AWG 2-500kcmil, #1/0AWG Output... -
Page 31: Table 13 Recommended Lug Sizes
Table 13 Recommended lug sizes T&B Series 54000 Cable Size One Hole #8 AWG 54930BE #6 AWG 54905BE #4 AWG 54906BE #2-3 AWG 54942BE #1 AWG 54947BE #1/0 AWG 54950BE #2/0 AWG 54951BE #3/0 AWG 54965BE #4/0 AWG 54970BE 250kcmil 54913BE 300kcmil 54914BE... - Page 32 Embedded Computing Connectivity Embedded Power DC Power Monitoring 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. Technical Support / Service monitoring@emersonnetworkpower.com Outside the US: 614-841-6755 upstech@emersonnetworkpower.com...
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