2U Rack Design
Rack-mounted installation across the 1–3kVA range.
C Rack Series
C Rack Series Online Rack UPS1KVA – 3KVA
2U rack-mounted UPS with pure sine wave output and an LCD status display.
Pure Sine Wave
LCD Display
Power Factor 1
2U Rack Design
Key Features
Power Factor 1
Rated output power of 1kW, 2kW or 3kW.
Pure Sine Wave
Pure sine wave output for connected equipment.
LCD Display
Multifunction LCD status display and control panel.
VRLA Batteries
Standard and external lead-acid battery configurations.
Adjustable Charging
1–8A for standard UPS; 1–12A for external battery UPS.
Product Overview
The C Rack Series includes C1KR, C2KR and C3KR standard models, plus external battery versions with an S suffix. Each model uses a 2U rack-mounted chassis and provides pure sine wave output with an output power factor of 1.
Compare all three capacities below. Standard and external battery versions have separate battery and physical specifications.
Downloads
Product Brochure
Coming SoonUser Manual
Coming SoonTechnical Specifications
Compare all C Rack Series models at a glance.
Standard UPS
Swipe horizontally to compare all models.
| Parameter | C1KR | C2KR | C3KR |
|---|---|---|---|
| General | |||
| Rated capacity / power | 1KVA/1KW | 2KVA/2KW | 3KVA/3KW |
| Installation | Rack-mount | ||
| Input | |||
| Nominal input voltage | 100/110/115/120/127VAC or 200/208/220/230/240VAC | ||
| Input frequency | 44–56 Hz or 54–66 Hz (default) | ||
| Input power factor | ≥0.999 | ||
| Wiring | L+N+PE | ||
| Input voltage range (200–240V models) | 110–300 VAC; power derating at 110–176 VAC and 280–300 VAC | ||
| Output | |||
| Output voltage | 100/110/115/120/127VAC or 200/208/220/230/240VAC | ||
| Voltage regulation (battery mode) | ±1% | ||
| Frequency synchronization range | 44–56 Hz or 54–66 Hz (default) | ||
| Output power factor | 1 | ||
| Harmonic distortion | ≤3% THD (linear load); ≤6% THD (nonlinear load) | ||
| Transfer time | 0 | ||
| Waveform | Pure sine wave | ||
| Overload capacity (line mode) | 30 min at 102–110%; 10 min at 110–130%; 30 s at 130–150%; 200 ms at >150% | ||
| Overload capacity (battery mode) | 1 min at 102–110%; 10 s at 110–130%; 3 s at 130–150%; 200 ms at >150% | ||
| Battery | |||
| Battery type | Lead-acid VRLA | ||
| Charging current | 1–8 A (adjustable) | ||
| Battery voltage | 24VDC | 48VDC | 48/72VDC |
| Battery capacity options | 12V7Ah/9Ah × 2 | 12V7Ah/9Ah × 4 | 48V: 12V 7Ah/9Ah × 4; 72V: 12V 7Ah/9Ah × 6 |
| Efficiency | |||
| Mains power mode | 94.5% | 95.5% | |
| Battery mode | 87.5% | 89.5% | 91.5% |
| Communication | |||
| Control panel | Multifunction LCD status display and control panel | ||
| Standard interfaces | RS232 / USB | ||
| Optional interfaces | AS400 / RS485 / SNMP | ||
| Environment | |||
| Operating humidity | 20–95% RH (non-condensing) | ||
| Noise at full load (1 m) | <50 dBA at 1 m | ||
| Operating temperature | −25–55°C | ||
| Physical | |||
| Dimensions (L × W × H) | 380 × 438 × 88[2U] mm | 48V: 380 × 438 × 88 mm (2U); 72V: 520 × 438 × 88 mm (2U) | |
| Net weight | 10.8 kg | 14.6 kg | 48V: 14.8 kg; 72V: 20 kg |
External Battery UPS
Swipe horizontally to compare all models.
| Parameter | C1KRS | C2KRS | C3KRS |
|---|---|---|---|
| General | |||
| Rated capacity / power | 1KVA/1KW | 2KVA/2KW | 3KVA/3KW |
| Installation | Rack-mount | ||
| Input | |||
| Nominal input voltage | 100/110/115/120/127VAC or 200/208/220/230/240VAC | ||
| Input frequency | 44–56 Hz or 54–66 Hz (default) | ||
| Input power factor | ≥0.999 | ||
| Wiring | L+N+PE | ||
| Input voltage range (200–240V models) | 110–300 VAC; power derating at 110–176 VAC and 280–300 VAC | ||
| Output | |||
| Output voltage | 100/110/115/120/127VAC or 200/208/220/230/240VAC | ||
| Voltage regulation (battery mode) | ±1% | ||
| Frequency synchronization range | 44–56 Hz or 54–66 Hz (default) | ||
| Output power factor | 1 | ||
| Harmonic distortion | ≤3% THD (linear load); ≤6% THD (nonlinear load) | ||
| Transfer time | 0 | ||
| Waveform | Pure sine wave | ||
| Overload capacity (line mode) | 30 min at 102–110%; 10 min at 110–130%; 30 s at 130–150%; 200 ms at >150% | ||
| Overload capacity (battery mode) | 1 min at 102–110%; 10 s at 110–130%; 3 s at 130–150%; 200 ms at >150% | ||
| Battery | |||
| Battery type | Lead-acid VRLA | ||
| Charging current | 1–12 A (adjustable) | ||
| Battery voltage | 36VDC | 72VDC | 96VDC |
| Efficiency | |||
| Mains power mode | 94.5% | 95.5% | |
| Battery mode | 87.5% | 89.5% | 91.5% |
| Communication | |||
| Control panel | Multifunction LCD status display and control panel | ||
| Standard interfaces | RS232 / USB | ||
| Optional interfaces | AS400 / RS485 / SNMP | ||
| Environment | |||
| Operating humidity | 20–95% RH (non-condensing) | ||
| Noise at full load (1 m) | <50 dBA at 1 m | ||
| Operating temperature | −25–55°C | ||
| Physical | |||
| Dimensions (L × W × H) | 380 × 438 × 88[2U] mm | ||
| Net weight | 5.45 kg | 6.55 kg | 6.75 kg |
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