Emerson 208V, 10-30kVA installation manual Cable Connections, Bussmann

Page 17

Electrical Connections

2.1.4Cable Connections

The rectifier input, bypass and output are easily accessible from the left side of the unit for installa- tion. All require lug type terminations. They are connected to busbars on the left side of the NX and below the switch, as shown in Figure 3. These busbars are accessible when the left side panel is removed. Busbars to connect external batteries are accessible from the front of the UPS.

NOTE

External battery connection access requires removal of a protective panel on the lower front of the UPS to the left of the bottom two battery shelves.

Figure 3 Input busbars

Output Busbars (Phases are indicated by letters below the bars)

C B A C B A

OUTPUTBYPASS

Remove these links for dual input configuration and wire UPS Main input directly to CB1

Rectifier Input Busbars (Phases are indicated by letters below the bars)

The internal batteries are connected with Anderson connectors inside the battery compartment. The batteries are connected to fuses to protect the NX and connected equipment (see Figure 4).

Figure 4 Battery fuses and connections

150A 500V AC/DC

Bussmann

MADE IN USA

150A 500V

MADE IN USA

Internal battery input connections

Battery fuses (fuses are behind access plate on front of UPS; see Note on page 11)

11

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Contents Liebert NX UPS Page Table of Contents Options Maintenance Bypass CabinetUPS Specifications Figures Tables Important Safety Instructions Battery Cabinet Precautions Glossary of Symbols Internal Inspections External InspectionsUPS Location Preliminary ChecksMechanical Considerations Considerations in Moving the NXSpecial Considerations for 1+N Systems Final PositionClearances Floor InstallationCable Entry 10-30kVA UPSBattery Maintenance Bypass CabinetLiebert Optional CabinetsLug Size and Torque Requirements Power CablingCable Rating Cabling Guidelines UPS Input ConfigurationBussmann Cable ConnectionsProtective Devices Safety GroundUPS Rectifier and Bypass Input Supply System OutputOutput System Connections-Ensure Correct Phase Rotation Cabling ProcedureCommon Input Connections Dual Input ConnectionsControl Cables Internal UPS Battery ConnectionsMonitor Board Features Input Dry Contacts Dry ContactsMaintenance bypass cabinet interface Maintenance Bypass Cabinet InterfaceBCB Box Interface BCB box interfaceEPO Input-Optional Firmware Before M200 Output Dry ContactsOutput dry contact relays EPO input contact relaysFirmware M200 or Later UPS Batteries SafetyIntroduction Matching Battery Cabinets External Battery Cabinet InstallationConnecting the Batteries Removable retainer Tray handle Insulated post for cablingTop cable entry Batteries BCB plate Top cable entry Battery trays BCB plate and BCBBattery tray support Service shelf Installation Considerations To interior surface of NX Battery tray supports attachFront door note notched Ends of supportsNon-Standard Batteries Connecting the Battery Cabinet to the UPSNormal UPS Mode Bypass SwitchMaintenance Mode Bypass ModeCable Installation Locating the CabinetInput/Output Wiring Power Cable InstallationMaintenance bypass control wire location Line up cabinets so that mounting holes are aligned Bolting Cabinets TogetherLoad Bus Synchronization DBS Cable and SettingsPerformance Requirements LBS CableGeneral Configuring Parallel System OperationFeatures of Parallel System Installing Parallel System Interconnecting Power CablesParallel Control Cables Parallel System Control Cables Auxiliary Dry Contact CablesInput Distribution Normally Closed EPO Normally Open EPOAvailable battery circuit breaker boxes Battery Circuit Breaker BoxDimensions Circuit BreakerMidpoint Busbar Detail DPN U3813078 Rev. N Front ViewBottom View Environmental characteristics UPS Mechanical CharacteristicsMechanical characteristics Conformity and StandardsUPS terminal UPS Electrical CharacteristicsDC Intermediate Circuit Battery Manufacturers and ModelsInput Rectifier Inverter output Inverter OutputBypass Input Bypass input Time LoadInstallation Drawings Main components-typical unit Dimensions -top and bottom viewsCable connections Location of internal batteries Battery 417mm 186mm 687mmW504 to W505 W511 to W510 W507 to W506 W509 to W508 W501 3pcs W500 18pcs W506 to W507 W510 to W511 W502 to W503W505 to W504 W508 to W509 W503 to W502Run From Conductors Liebert -supplied interconnect wiringRefer to for key to interconnection Maintenance Bypass interconnection A00, BR0 Liebert-supplied interconnect wiringRun From Conductors Cabinet Type Distribution Cabinet Load AC Connection Neutral Ground Distribution CabinetIsolated Ground Interconnect wiring-1+N Type a connection to NX Interconnect wiring-1+N Type A1 connection to NX Utility AC Source UPS #1-UPS #4 Module AC Input Interconnect wiring-1+N Type B connection to NXInterconnect wiring-1+N Type B1 connection to NX Ph A, B, C-system Input Interconnect wiring-1+N Type C connection to NXPh a ,B, C UPS Input Ph a ,B, C Load+ N Cabinet Side View + N Parallel Cabinet Interconnect wiring-1+N Type C1 connection to NXLineup detail-1+N Type D connection to NX Interconnect wiring-1+N Type D connection to NXUPS Battery torque rating Torque specificationsInitial Torque Annual Torque Battery In-lb N-m Lug Size and Torque RequirementsCurrent Rating a OCP CB Size a Maintenance bypass cabinet electrical data single inputCurrent CB Size a Current Rating a CB Size a Maintenance bypass cabinet electrical data dual inputMulti-module bypass cabinet electrical data SR0, W00 200A300A TR0 E00, FR0G01, GR1 208 104 125 250 400 UR0, Y00 MR1208 280 400 222 300 210 250 167 225 140 175 111 150 Maintenance bypass cabinet lug sizes Maintenance Bypass Cabinet Style, lb. kg Rating Battery cabinet physical characteristicsMaintenance Bypass Cabinet weights Multi-module paralleling cabinet dimensions Maintenance bypass cabinet dimensionsCable Lengths Floor to Connection Point Inside UPS Distance to connection points on the NX UPSSpecifications and Technical Data Specifications and Technical Data Page Iti Ne tTi n That
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10-30kVA, 208V specifications

The Emerson 10-30 kVA, 208V uninterruptible power supply (UPS) solution is a robust system designed to provide reliable power protection for critical applications in commercial and industrial settings. This UPS is ideal for safeguarding IT equipment, communication systems, and other sensitive electronics against power disturbances and interruptions.

One of the standout features of the Emerson 10-30 kVA UPS is its modular design, allowing for flexibility and scalability. This means that as the power needs of a facility grow, the UPS can be easily expanded without requiring a complete system overhaul. This modularity contributes to a more efficient use of resources and minimizes operational costs.

The UPS also incorporates advanced technologies such as double-conversion online architecture, which provides the highest level of power quality. This technology ensures that the output power is consistently clean and stable, effectively eliminating harmful voltage fluctuations and frequency variations. Consequently, connected load receives a pure sine wave output, preventing potential damage or operational issues with sensitive equipment.

Another key feature is the high efficiency rating of the Emerson UPS, which exceeds 95 percent in typical operating conditions. This high efficiency translates to reduced energy costs and a smaller carbon footprint, aligning with modern sustainability goals. The cooling system is designed to be efficient as well, ensuring optimal performance while maintaining a compact footprint.

The user-friendly interface enhances operability, featuring an intuitive LCD display that allows for easy monitoring of critical power parameters. Users can access real-time data related to battery health, load levels, and operational status, which aids in effective management of the power supply.

Battery management is another critical aspect of the Emerson UPS. It employs advanced battery management technologies to ensure optimal battery life and performance. Features such as intelligent battery testing and monitoring help predict potential battery failures before they occur, allowing for proactive maintenance and minimized downtime.

In summary, the Emerson 10-30 kVA, 208V UPS offers a combination of modularity, high efficiency, advanced technologies, and effective power management features that cater to the demanding needs of critical applications. With its reliable performance and user-friendly operation, this UPS solution is an excellent choice for organizations looking to protect their valuable equipment from power disturbances.
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