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4400 Series Installation and Operation Manual – 64527-008
4400 SPECIFICATIONS: 15–30kVA w/ Internal Battery Backup and/or MBS
15kVA 20kVA 25kVA 30kVA
Voltage Transient Response (%) @
Loss and Return of Input V
± 2%
Voltage Transient Response (%) @
Xfer from Bypass to Inverter
± 3%
Current (A) 42 A 56 A 69 A 83 A
Max Continuous Overload Current
(A)
109% of Nominal Output
Crest Factor 2.5
Inrush Current Protection Fuse
Interrupt Rating (RMS Symmetrical
kA)
18 kAIC
Frequency (Hz) 50 or 60 Hz
Frequency Selectable (Converter) No
Frequency Regulation (%) Free
Running Mode
± 0.1%
Frequency Sync Range (%) ± 5 Hz
Frequency Slew Rate Range (Hz/s) ± 0.5 Hz/sec.
Output Power Factor (PF) 0.9
Loads Supported (PF) 0.4 Lagging to 0.4 Leading
Phase Displacement:
100% Balanced Load (deg.),
100% Unbalanced Load (deg.)
± 2° for Balanced Load
Inverter Overload Capacity
(% for sec)
125% for 90 sec. 150% for 30 sec.
Eciency AC-DC-AC 100% Full
Load (%)
91%
Surge Protection Auto transfer to bypass, retransfer to inverter; Optional SPD
Battery – External (If Applicable)
Type VRLA Batteries
Voltage - Nominal (Vdc) 288Vdc
Voltage - Minimum (Vdc) 230.4Vdc
Voltage - Float (Vdc) 324Vdc
Max Recharge Current - (Adc) "6 Adc (Default)/ 20 Adc Max Factory Adj.
*(Max. Charge Current + Input Current cannot exceed 125% of Rated Load Current)"
Max Discharge Current - (Adc) 64 Adc 85 Adc 107 Adc 128 Adc
Battery Capacity Required at Full
Load (kWB)
14.7 kWB 19.6 kWB 24.5 kWB 29.4 kWB
Battery Test (Interval per hr) Yes
Pre-alarm Level (Vdc) 250Vdc
Battery Protection Internal - Fuse / Ext. - MMB
Overvoltage Protection Cuto @ 110% Floating Charge
Protection against Batteries Deep
Discharge
Automatically adjust cuto voltage
Eciency DC-AC (%) >90%
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