AC Input to UPS

A. Voltage Configuration: The UPS shall incorporate a variable input voltage window feature that shall operate at the values in the following table, without drawing power from the batteries.

B. Frequency:UPS shall auto-sense input frequency when first powered up and shall operate within the following frequency specifications. UPS shall be capable of cold start with default frequency of 60Hz (120VAC and 208VAC units) and 50Hz (230VAC units). Once started the frequency operating window shall be 40-70Hz.

Three frequency settings shall be available in the Liebert GXT4 Configuration program: Auto frequency sensing (factory default setting), 50Hz frequency conversion and 60Hz frequency conversion.

C. Input Power Factor:>0.99 lagging at rated load.

D. Input Current reflected distortion: 5% THD typical.

E. Input Current Ratings

F. Inrush Current (initial startup, no load): The UPS shall have a maximum inrush current of 6 times the full load peak input current.

G. Input Line Transient Immunity: UPS shall conform to an input line transient conforming to IEEE C62.41, Category A, Level 3 tests for 120VAC and 208VAC models. The 230VAC models shall meet EN61000-4-5.

H. Surge Protection

· 120VAC units: MOV ratings shall be 175V, 80 Joules minimum connected L-N.

· 208VAC units: MOV ratings shall be 320V, 80 Joules minimum connected L1-L2, L1-G and L2-G.

· 230VAC units: MOV ratings shall be 320V, 80 Joules minimum connected L-N.

A. Voltage Configuration

· 120V units: 120VAC, 50/60Hz, single-phase, 2-wire-plus-ground, configuration program selectable (110V, 115V, 120V, 127V).

· 208V units: 208VAC, 50/60Hz, single-phase, 2-wire-plus-ground, configuration program selectable (208V, 220V, 230V, 240V).

· 230V units: 230VAC, 50/60Hz, single-phase, 2-wire-plus-earth, configuration program selectable (220V, 230V, 240V).

B. Voltage Regulation

± 3% steady state.

C. Frequency Regulation

±5% synchronized to utility / mains. ±0.1Hz free running or on-battery operation.

D. Frequency Slew Rate

1.0Hz per second maximum

E. Voltage Distortion

<3% total harmonic distortion (THD) typical into a 100% linear load, <5% THD typical into a 100% non-linear load with crest factor ratio of 3:1.

F. LoadPowerFactorRange

The load power factor range shall be 0.65 lagging to 1.0 (unity) without power derating.

G. Output Power Rating

Output power rating shall be 500VA/450 Watts, 700VA/630 Watts, 1000VA/900 Watts, 1500VA/1350 Watts, 2000VA/1800 Watts and 3000VA/2700 Watts at 0.9 lagging power factor.

H. Inverter Overload Capability

I. Voltage Transient Response

· ±7% in line mode 0-100-0 % loading of the UPS

· ±7% in battery mode for 0-100-0% loading of the UPS rating.

J. Transient Recovery Time

To nominal voltage within 90 milliseconds.

K. AC-AC Efficiency:

The 700VA-3000VA 120V; 3000VA 208V; and 700-3000VA 230V UPS models shall be EPA ENERGY STAR qualified and labeled

· 500RT120: 88% AC –AC at full rated linear load

· 700RT120: 89% AC –AC at full rated linear load

· 1000RT120: 88% AC –AC at full rated linear load

· 1500RT120: 89% AC –AC at full rated linear load

· 2000RT120: 89% AC –AC at full rated linear load

· 3000RT120: 89% AC –AC at full rated linear load

· 3000RT208: 90% AC –AC at full rated linear load

· 700RT230: 89% AC –AC at full rated linear load

· 1000RT230: 89% AC –AC at full rated linear load

· 1500RT230: 90% AC –AC at full rated linear load

· 2000RT230: 91% AC –AC at full rated linear load

· 3000RT230: 90% AC –AC at full rated linear load

L. Programmable & Controllable Outlets:

The UPS units shall have 2 groups of programmable and controllable outlets. These shall be user customizable to program to perform load shedding based upon battery capacity remaining, time on battery operation, battery time remaining, and overload condition when on battery power. The user shall also be able to program these groups for sequential restart of connected equipment based upon time after input power is restored. The user can also program these to always be turned off to prevent unauthorized equipment from being plugged into the UPS.

A. Ambient Temperature

Operating: The ambient temperature range, when UPS is operational, shall be from 32°F to 77°F (0°C to 25°C). There shall not be any degradation in the performance when operating in this range. Automatic derating shall occur for operation in higher ambient temperatures based on the following table.

Storage: 5°F to 122°F (-15°C to 50°C )

B. Relative Humidity

Operating: 0 to 95% non-condensing.

Storage: 0 to 95% non-condensing.

C. Altitude

10,000 ft. (3,000m) max without power derating when operated within the temperature specified in Section 1.4, Item A. Ambient temperature shall be derated 9°F (5°C) for each additional 1600 ft. (500m) above 10,000 ft. (3,000m).