EVI 3000VA Line interactive UPS
EVI 3000VA Line interactive UPS is priced at Kes 23,500 here at Novelty Tech Solution in Nairobi, Kenya
Key Specifications
| Feature | Detail |
|---|---|
| Model | EP-UPS3000UU4-UK (EVI 3000VA Line Interactive UPS) |
| Capacity | 3000 VA / 1800 W |
| Topology | Line-Interactive (with AVR) |
| Input Voltage Range | ~ 140 V – 300 V AC |
| Output Voltage | 230 V AC ± around 10% |
| Output Frequency | 50/60 Hz auto-sensing |
| Output Waveform | Simulated (sometimes called “modified”) sine wave |
| Transfer Time | Usually 2–6 ms under typical conditions |
| Automatic Voltage Regulation (AVR) | Yes (Boost & Buck) to correct under- and over-voltages without having to draw battery power immediately |
| Battery Type & Configuration | Sealed lead-acid (maintenance free). Typically 4 × 9 Ah batteries in this model. |
| Recharge Time | About 6-8 hours to restore to approximately 90% charge after full discharge. |
| Outlets | 4 universal AC outlets (various plug types) |
| Display & Monitoring | LCD panel showing battery level, load, input/output voltage etc.; includes monitoring/control software |
| Cold-Start Function | Yes — the UPS supports starting from battery when mains is out. |
| Protection Features | Overload protection, short circuit protection, surge protection, and usually features to prevent over-discharge of battery. |
| Warranty | 2 years for the UPS unit; battery often has 1 year warranty. |
| Operating Environment | Usually listed 0-40 °C; humidity non-condensing up to ~90% in many cases. |
Performance & Typical Use
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For a “standard PC + monitor + networking gear” load (not full 1800W), backup time is often 10-18 minutes depending on exactly how much power is drawn.
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At near-maximum load (close to 1800W), expect much shorter backup time — possibly just a few minutes.
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Recharge time after a full discharge is long; the 6-8 hour figure is typical.
Pros
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Large capacity (3000 VA / 1800 W) offers good headroom for multiple devices: servers, workstations, routers, etc.
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AVR helps protect against voltage fluctuations (brownouts/spikes) — reducing battery wear by avoiding unnecessary battery use.
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Universal outlets mean more flexibility with different plug types.
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LCD + monitoring software allows you to observe load, battery status, etc.
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Cold-start means it can operate even when mains are off (if the battery is charged).
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Fair warranty period (2 yrs for UPS unit) gives some peace of mind.
Limitations / Things to Check
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Output is simulated sine wave rather than pure sine wave, which may not suit very sensitive equipment (audio, precise measurement instruments, high-end PSUs with strict input wave requirements, etc.).
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Battery backup time declines rapidly with heavier loads. If you regularly use close to 1800 W, the runtime might be very short.
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Battery Ah rating (9 Ah × 4) is fairly standard, but if you want longer backup, you’d need larger battery capacity or external battery banks.
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Weight and size: large, heavy unit likely requiring sturdier placement. Also heat generation under load needs good ventilation.
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Noise under load could be significant (fans etc.).
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Battery warranty is shorter; battery replacement cost/time should be considered.
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