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.
Load Level | 500-1000 VA 120 VAC Input Voltage | 1500-3000 VA 120 VAC Input Voltage | 3000 VA 208 VAC Input Voltage | 700-2000 VA 230 VAC Input Voltage | 3000 VA 230 VAC Input Voltage |
100% | 90 VAC | 102 VAC | 177 VAC | 177 VAC | 196 VAC |
90% | 86 VAC | 96 VAC | 168 VAC | 168 VAC | 184 VAC |
80% | 81 VAC | 90 VAC | 159 VAC | 159 VAC | 173 VAC |
70% | 77 VAC | 84 VAC | 150 VAC | 150 VAC | 161 VAC |
60% | 73 VAC | 78 VAC | 142 VAC | 142 VAC | 150 VAC |
50% | 69 VAC | 72 VAC | 133 VAC | 133 VAC | 138 VAC |
40% | 64 VAC | 66 VAC | 124 VAC | 124 VAC | 127 VAC |
30% | 60 VAC | 60 VAC | 115 VAC | 115 VAC | 115 VAC |
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
UPS Model # | 120VAC Units | 230VAC Units | 208VAC Units |
500RT | 4.2A | N/A | N/A |
700RT | 5.8A | 2.9A | N/A |
1000RT | 8.3A | 3.9A | N/A |
1500RT | 12A | 5.9A | N/A |
2000RT | 16A | 7.8A | N/A |
3000RT | 24A | 11.7A | N/A |
3000RT208 | N/A | N/A | 12.9A |
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.
1.1.1.2 AC Output, UPS InverterA. 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
| 500VA - 2000VA | 3000VA |
120V / 208V | 105% to 125% - 60 seconds | 105% to 125% - 15 seconds |
125% to 150% - 50 seconds | 125% to 150% - 10 seconds |
150% to 200% - 2 seconds | 150% to 200% - 2 seconds |
>200% - 250ms | >200% - 250ms |
230V | 105% to 125% - 60 seconds | 105% to 125% - 55 seconds |
125% to 150% - 50 seconds | 125% to 150% - 55 seconds |
150% to 200% - 2 seconds | 150% to 200% - 2 seconds |
>200% - 250ms | >200% - 250ms |
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.
1.2 ENVIRONMENTAL CONDITIONSA. 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.
Ambient Temperature | 78-86°F ±5°F
(26-30°C ±3°C) | 87-95°F ±5°F
(31-35°C ±3°C) | 96-104°F ±5°F
(36-40°C ±3°C) |
Max Output Power Factor degradation @ max load | 100%-93% | 92%-86% | 85%-79% |
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).
