Liebert NXb 30 KVA includes a maintenance bypass – 208 volt, internal batteries and line and match maintenance bypass are included with this UPS system.  It is supported by a one year parts warranty.  Start up and comprehensive service agreements are available.   We have tested this UPS under load and installed new High Rate UPS batteries.

The hardware and firmware for parallel UPS module operation is standard in the Liebert NX, and the configuration can be set up by changing the settings in configuration software.  It is easy to install the parallel cables in a ring, providing high reliability and redundancy. And the intelligent paralleling logic provides the user with maximum flexibility. For example, shutting down or starting up the UPS modules in the parallel system can be done in any sequence. If an overload transfer occurs, the whole system can recover automatically from bypass mode after the overload is cleared. The total load of the parallel system can be queried from each module’s LCD screen. Optional monitoring background software can treat the entire parallel system as a big singlemodule UPS, and provide corresponding management. It can also get the information for all modules by connecting to just one of the modules.

Conformity and Standards

The UPS has been designed to conform to the following standards:

• IEEC1000-4-5
• ASME
• CSA 22.2, No. 107.1
• FCC Part 15, Class A
• ISO 9001
• National Electrical Code (NFPA-70)
• NEMA PE-1
• OSHA
• UL Standard 1778

The UPS system has UL and c-UL approval.

UPS Environmental

• Operating Temperature, UPS- 32°F to 104°F (0°C to 40°C)
• Optimal Operating Temperature, Battery- 68°F to 86°F (20°C to 30°C)

• Relative Humidity- 0 to 95%, non-condensing
• Acoustical Noise, dBA at 39 in. (1m)- 54
• Altitude of Operation- ≤1000m per IEC 62040/3
• Storage-Transport Temperature, UPS- -4°F to 158°F (-20°C to 70°C)
• Storage-Transport Temperature, Battery- -4°F to 86°F (-20°C to 30°C)

UPS Mechanical Characteristics

• Width, in. (mm)- 24 (600)
• Depth, in. (mm)- 32.5 (825)
• Height, in. (mm)- 63 (1600)
• Weight Without Inner Batteries, lb. (kg)- 550 (250)
• Heat Dissipation, BTU/H (kWH)- 8300 (2.43)
• Airflow, CFM (m3/h)- 834 (1417)
• Cable Entry- Bottom or top

Input (for single-input unit)

• Nominal Input Current- 83
• Maximum Input Current- 104
• OCP Current- 125
• OCP Device Rating- 125

Rectifier input (for dual input unit only)

• Nominal Input Current- 75
• Maximum Input Current- 94
• OCP Current- 113
• OCP Device Rating- 125

Bypass Input (for dual input units)

• Nominal Input Current- 83
• OCP Current- 104
• OCP Device Rating- 110

Output

• Nominal Output Current- 84
• OCP Current- 105
• OCP Device Rating- 1100

Battery

• Battery Current- 110
• OCP Current- 110