SJ900II 1KVA-3KVA Online UPS is an on-line double-conversion UPS with input power factor correction (PFC), output power factor 0.9 offering high levels of reliability and protection for critical servers and data processing IT systems. Besides sufficient runtime as backup power, SJ900II UPS（long time model）can be fitted with matching battery extension packs for long runtime applications;Besides some standard features of normal UPS, it is also able to bear wide input voltage in harsh environment, and optional N+X redundancy parallel function is also available.
● High frequency and true double-conversion
● DSP digital control technology
● Input power factor correction (PFC)
● Wide input voltage range (110V-300V)
● Output power factor 0.8/0.9
● Cold start
● Frequency adaptive
● ECO mode operation for energy saving
● Selectable output voltage via LCD
● Output bypass settable via LCD
● Selectable battery low voltage via LCD
● Automatic self-test during startup
● Advanced battery management (ABM)
● Short circuit and overload protection
● Automatically charging battery at UPS off mode
● Fan speed auto control when load varies
● Standard RS232 communication port and RJ45 protection
● Optional USB/SNMP communication port
● Optional emergency power off (EPO)
● Optional extension battery bank
● Optional built-in isolation transformer
| MODEL |
SJ901II |
SJ902II |
SJ903II |
SJ901II |
SJ902II |
SJ903II |
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| Capacity |
1KVA/800W |
2KVA/1600W |
3KVA/2400W |
1KVA/900W |
2KVA/1800W |
3KVA/2700W |
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| INPUT | ||||||||||
| Rated Voltage |
208V/220V/230V/240VAC |
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| Voltage Range |
Half load (110-300)±5VAC;Full load (160-300)±5VAC |
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| Frequency |
40-70Hz±0.5% (Auto Sensing) |
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| Power Factor |
≥0.98 |
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| Bypass Voltage Range |
Rated output voltage-34V ~ Rated output voltage+32V |
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| OUTPUT | ||||||||||
| Voltage |
208V/220V/230V/240VAC Setting available via LCD |
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| Voltage Regulation |
±1% |
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| Frequency |
45-55Hz or 55-60Hz(Synchronized range);50/60±0.2Hz (battery mode) |
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| Waveform |
Pure sine wave |
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| Crest Factor |
3:1 |
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| Harmonic Distortion |
≤2%(Linear load);≤5%(Non-linear load) |
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| Transfer Time |
AC mode to battery mode :0ms Inverter model to bypass mode:4ms(Typical) |
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| Overload Capability |
105%-150%:Transfer to bypass after 30s; >150%: Transfer to bypass after 300ms |
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| EFFICIENCY | ||||||||||
| AC Mode |
≥90% |
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| Battery Mode |
≥87% |
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| ECO Mode |
≥94% |
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| BATTERY | ||||||||||
| DC Voltage |
24V |
48V |
72V |
36V |
72V |
72V |
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| Inbuilt Battery of Standard Model |
2*9Ah |
4*9Ah |
6*9Ah |
3*7Ah |
6*7Ah |
6*9Ah |
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| Charge Current | Standard Model |
1A |
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| Long Time Model |
6A |
NO |
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| Typical Recharge Time |
8 hours recover to 90% capacity |
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| ALARM | ||||||||||
| Utility Failure |
Beep/4s |
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| Battery Low |
Beep/1s |
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| Overload |
Beep Twice/1s |
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| UPS Fault |
Long Beep |
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| ENVIRONMENT | ||||||||||
| Humidity |
20~90% RH @ 0~40℃(non-condensing) |
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| Noise Level |
≤50dB (1m) |
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| MANAGEMENT | ||||||||||
| Standard RS-232 ,Optional USB |
Supports Windows 98/2000/2003/XP/Vista/2008/Windows7/8 |
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| Optional SNMP |
Power management from SNMP manager and web browser |
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| PHYSICAL | ||||||||||
| Dimension(mm) W*D*H |
144*357*215 |
190*452*341 |
144*410*215 |
190*452*341 |
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| Packing(mm) W*D*H |
230*445*315 |
320*550*462 |
231*492*316 |
320*550*462 |
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| N.Weight(kg) |
5.6(H),10.1(S) |
11.0(H),20.50(S) |
11.6(H),25.7(S) |
13(S) |
23.5(S) |
26.6(S) |
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| G.Weight(kg) |
6.9(H),11.4(S) |
13.1(H),22.7(S) |
13.7(H),27.9(S) |
14.5(S) |
25.0(S) |
28.8(S) | ||||
SJ900II 1-3KVA user manual
SJ900II 1-3KVA Datasheets