ACS Series 1–3kVA Online Rack UPS is a compact rack-mounted online UPS that provides clean, regulated single-phase power for servers, network equipment, communication systems, and other rack-based critical loads.
Compact rack design: The series covers 1–3kVA in compact rack chassis.
Full active power: Output power factor of 1.0 delivers full usable kW capacity.
Wide input range: An input range of 110–300Vac supports operation under unstable mains conditions.
Flexible backup: Standard models use internal VRLA batteries, while long-backup versions support external battery systems and adjustable charging.
Final configuration depends on rack space, capacity, battery arrangement, runtime, outlet configuration and project requirements.





| Model | SS001BR | SS001LR | SS01.5BR | SS01.5LR | SS002BR | SS002LR | SS003BR | SS003LR |
|---|---|---|---|---|---|---|---|---|
| Rate Power | 1kVA/1kW | 1kVA/1kW | 1.5kVA/1.5kW | 1.5kVA/1.5kW | 2kVA/2kW | 2kVA/2kW | 3kVA/3kW | 3kVA/3kW |
| Cold Start | Default output 50/60Hz | |||||||
| Input Voltage Range | 110-300VAC; 100% load @176VAC-276VAC; 100%-50% power derating @110VAC-176VAC; 50% load @276VAC-300VAC | |||||||
| Input Power Factor | ≥0.99 | |||||||
| Frequency Range | 50/60±5Hz (default), ±3Hz (settable) | |||||||
| Output Power Factor | 1.0 | |||||||
| Rate Voltage | 220/230/240VAC, 200/208VAC (PF=0.9) | |||||||
| Load Response | ≤5% (0% - 100% - 0% step load) | |||||||
| Recovery Time | ≤40ms (0% - 100% - 0% step load) | |||||||
| Output THDu | ≤2%, Linear load; ≤5% non-linear load according to IEC 62040-3 | |||||||
| Socket (Option) | IEC, Schuko, NEMA, South Africa, UK | |||||||
| Transfer Time - Main to BAT | 0ms | |||||||
| Transfer Time - INV to BYP | 4ms | |||||||
| Efficiency (Normal Mode) | Up to 96% | |||||||
| Noise (1 meter) | <43dB @ <60% load; 47dB @ >60% load | <50dB @ <60% load; <55dB @ >60% load | <50dB @ <60% load; <55dB @ >60% load | |||||
| Overload - Normal | 102%-110%: 30mins; 110%-125%: 10mins; 125%-150%: 30 seconds | |||||||
| Overload - Battery Mode | 102%-110%: 1min; 110%-125%: 10 seconds; 125%-150%: 5 seconds | |||||||
| Overload - Bypass Mode | <130%: long time; 130%-150%: 10mins; 150%-180%: 5 seconds | |||||||
| Battery Quantity | 2 (12VDC*9Ah) 3 (12VDC*7/9Ah) | Depend on external battery | 3 (12VDC*7Ah) | Depend on external battery | 4 (12VDC*9Ah) 6 (12VDC*7/9Ah) | Depend on external battery | 6 (12VDC*7/9Ah) | Depend on external battery |
| Max Charging | 1A | 1-12A (optional) | 1A | 1-12A (optional) | 1A | 1-12A (optional) | 1A | 1-12A (optional) |
| Rate Voltage | 24/36VDC | 36VDC | 48/72VDC | 72VDC | ||||
| Standard | EPO, RS232 | |||||||
| Option | SNMP card, AS400, USB, RS485, Air filter | |||||||
| Dimension (W*D*H) mm | 440 × 440 × 86 | 440 × 580 × 86 | 440 × 440 × 86 | 440 × 580 × 86 | 440 × 440 × 86 | |||
| Weight (kg) | 16.5 / 19 | 9.5 | 19 | 9.5 | 22.6 / 27.5 | 9.7 | 28 | 10 |