990-91377-001

Specifications for 250 kW UPS

  Voltage (V) 380 400 415 440 480
Input Connections Single mains: 4-wire (L1, L2, L3, N, PE) or
3-wire (L1, L2, L3, PE)
Dual mains: 3-wire (L1, L2, L3, PE)
Single mains: 4-wire* (L1, L2, L3, N, G) or
3-wire* (L1, L2, L3, G)
Dual mains: 3-wire* (L1, L2, L3, G)
Input voltage range (V) 331-437 340-460 353-477 374-506 408-552
Frequency (Hz) 40-70
Nominal input current (A) 395 374 360 340 311
Maximum input current (A) 455 449 432 408 373
Input current limitation (A) 455 455 450 420 385
Total harmonic distortion (THDI) <5% at 100% load
Input power factor >0.99 at load >25%, 0.95 at >15% load
Protection Built-in backfeed protection and fuses
Ramp-in Adaptive 1-300 seconds
Bypass Connections 4-wire (L1, L2, L3, N, PE) or
3-wire (L1, L2, L3, PE)
4-wire (L1, L2, L3, N, G) or
3-wire (L1, L2, L3, G)
Bypass voltage range (V) 342-418 360-440 374-457 396-484 432-528
Frequency (Hz) 50 or 60
Frequency range (Hz) Programmable: ±0.1, ±3, ±10. Default is ±3.
Nominal bypass current (A) 384 364 351 331 304
Maximum input short circuit level (three cycles) 65 kA Icw
25 kA Icw with maintenance bypass cabinet
45 kA Icw with bottom entry cabinet
45 kA Icc with backfeed breaker kit installed in the UPS
65 kAIC
65 kAIC with maintenance bypass cabinet
45 kAIC with bottom entry cabinet
45 kAIC with backfeed breaker kit installed in the UPS
I2t thyristor value (A2s) 3.1 MA2s
Bypass backfeed protection options 1: Upstream installation of breaker with shunt trip connected to the UPS, OR
2: Installation with maintenance bypass cabinet, OR
3: Installation of backfeed breaker kit in the UPS.
Output Connections* 4-wire (L1, L2, L3, N, PE) or
3-wire (L1, L2, L3, PE)
4-wire (L1, L2, L3, N, G) or
3-wire (L1, L2, L3, G)
Output voltage regulation Symmetrical load ± 1%
Asymmetrical load ± 3%
Overload capacity

150% for 1 minute, 125% for 10 minutes (normal operation)
125% for 1 minute (battery operation)
110% continuous, 1000% for 60 milliseconds (bypass operation)

150% for 1 minute, 125% for 10 minutes (normal operation)
125% for 1 minute (battery operation)
125% continuous, 1000% for 60 milliseconds (bypass operation)

Dynamic load response ± 5% after 2 ms, ± 1% after 50 ms
Output power factor 1
Nominal output current (A) 380 361 348 328 301
Output frequency (Hz) 50/60 (synchronized to bypass), 50/60 Hz ±0.1% (free-running)
Synchronized slew rate (Hz/sec) Programmable: 0.25, 0.5, 1, 2, 4, 6
Total harmonic distortion (THDU) <1% for linear load, <5% for non-linear load
Output performance classification (according to IEC/ EN62040-3) VFI-SS-111
Load crest factor 2.5
Load power factor 0.5 leading to 0.5 lagging without derating
Battery Charging power in % of output power 0-40% load: 80%
100% load: 15%
0-40% load: 80%
100% load: 20%
Maximum charging power (kW) 0-40% load: 200
100% load: 37.5
0-40% load: 200
100% load: 50
Nominal battery voltage (VDC) 480 for 40 blocks
576 for 48 blocks
Nominal float voltage (VDC) 545 for 40 blocks
654 for 48 blocks
Maximum boost voltage (VDC) 571 for 40 blocks
685 for 48 blocks
Temperature compensation (per cell) -3.3mV/°C for T ≥ 25 °C, 0mV/°C for T < 25 °C
End of discharge voltage (full load) (VDC) 384
End of discharge voltage (no load) (VDC) 420
Battery current at full load and nominal battery voltage (A) 543
Battery current at full load and minimum battery voltage (A) 678
Ripple current < 5% C20 (5 minute runtime)
Battery test Manual/automatic (selectable)
Maximum short circuit rating 30 kA
NOTE: Battery specifications are based on VRLA batteries.
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