Simplifying IT
Ōja 19 Solar DC UPS
Overview
DC mode UPS for powering IT and Telecom equipment. Conserves precious solar energy and storage battery power by eliminating conversion losses.
Features
- A fully automatic, high efficiency, high reliability, DC mode solar UPS. Ideal power solution for rural off-grid electrification projects.
- Directly powers IT, telecom and lighting equipment, eliminating lossy DC-AC inversion, AC-DC rectification.
- State of the art SMPS technology with 100KHz operating frequency – high efficiency, long life product.
- Microprocessor controlled remote monitoring.
- Solar power input from 80Wp panels.
- CC-CV battery charger for 24V 26Ah battery backup. Designed to maximise life and capacity of the battery.
- 165~265 V AC input to augment solar power.
- 19V DC 180W regulated power output.
- High Voltage protection on AC input – designed for the erratic power supply in rural India.
- Prioritises solar power utilisation. If solar power is insufficient for load and charging requirements, only then uses AC or battery power.
- Combines solar power with AC or battery power, minimising AC bills and maximising battery backup time.
- Online UPS with no relays on output side – smooth uninterrupted DC power leads to longer life of electronic components.
Specifications
| Technology | 100KHz switch mode | |
| Power Output | 180 Watts @ 19V DC | |
| Solar input | 2x17V solar panels; total 80Wp power input. | |
| AC Input | 230V AC, 50 Hz, typical | |
| Battery | 2x12V batteries; total 24V 26Ah (624 Wh) capacity. | |
| Solar Input | Open Circuit Voltage | 42 V DC |
| MPP Voltage | 34 V DC | |
| MPP Current | 2.35 A | |
| AC Input Range | Voltage | 165 ~ 265 V AC |
| Frequency | 47 ~ 63 Hz | |
| AC Input Protection | High Voltage Cutoff | 270 V |
| High Voltage Restore | 260 V | |
| High Voltage Sustain | 400 V | |
| Battery Charging | Charging Current | 3 A DC |
| Boost Cutoff Voltage | 28 V DC | |
| Float Voltage | 26.4 V | |
| Battery Discharge | Low Battery Alarm | 22 V DC |
| Low Battery Cutoff | 21 V DC | |
| Low Battery Restore | 24 V DC | |
| DC Output | Voltage | 19.5 V DC typical |
| Ripple | 150 mV | |
| Regulation | ±5% | |
| Output Protection | Over Voltage Cutoff | 21 V DC |
| Over Current Cutoff | 10 A DC | |
| Dimensions | 226 mm x 163 mm x 59 mm | |
| Weight | 2.00 kg | |
| Construction | Galvanised steel sheet | |
| Operating Environment | Temperature | 0 ~ 35 deg.C |
| Humidity | 10 to 90% | |
| Efficiency | 90% + |
