Delta RT 20kVA Three-Phase Online UPS
Delta · UPS · Online double-conversion, three-phase
Compact three-phase online UPS (3:3 / 3:1) with unity power factor and up to 96.5% efficiency — big power in a 2U-high chassis, Li-ion ready.
- Capacity: 20 kVA / 20 kW
- Three-phase input · three-phase or single-phase output (3:3 / 3:1)
- Unity output power factor (kVA = kW)
- Efficiency up to 96.5% online, up to 99% in ECO mode
Supplied in Israel by Somet Integration — local stock, installation, battery replacement and service from our lab in Lod.
Delta RT 20kVA Three-Phase Online UPS
The Delta Amplon RT three-phase series packs 10–20 kVA of true online double-conversion power into an ultra-compact chassis just 88 mm high. It accepts a three-phase input and can deliver either three-phase or single-phase output, with unity output power factor, up to 96.5% AC-AC efficiency (99% in ECO mode) and compatibility with lithium-ion batteries. Optional maintenance bypass and remote power-panel integration make it a complete power solution for critical applications.
Key features
- Three-phase input · three-phase or single-phase output (3:3 / 3:1)
- Unity output power factor (kVA = kW)
- Efficiency up to 96.5% online, up to 99% in ECO mode
- Input PF > 0.99, THDi < 3%
- DSP control, zero transfer time, generator compatible
- VRLA or lithium-ion battery support
- Graphical LCD; USB, RS-485, Mini Slot, REPO, dry contacts
- Ultra-compact 88 mm (2U) height · operating up to 55°C
| Model | RT-20K 3P |
| Capacity | 20 kVA / 20 kW |
| Efficiency | Online up to 96.5% · ECO up to 99% |
| Battery voltage | ±192–±264 Vdc (±144 Vdc with derating) |
| Dimensions (W×D×H) | 440 × 760 × 88.2 mm |
| Net weight | 22.5 kg |
| Audible noise | < 54 dBA |
| Topology | Online double-conversion |
| Input voltage | 380/400/415 Vac, 3P4W+PE |
| Input voltage range | 305–485 Vac (100% load); 138–305 Vac (derated 40–100%) |
| Input frequency | 40–70 Hz |
| Input power factor | > 0.99 (100% load) |
| Input THDi | < 3% |
| Output voltage | 380/400/415 Vac 3P4W+PE or 220/230/240 Vac 1P2W+PE |
| Output regulation | ±1% |
| Output frequency | 50/60 Hz ±0.05 Hz |
| Output power factor | 1 |
| Output THDv | < 2% linear · < 4% non-linear |
| Battery | VRLA / lithium-ion, external battery packs |
| Charger current | Up to 8 A |
| Display | Graphical LCD with LED indicators |
| Communication | USB, RS-485, Mini Slot, REPO, 1 input + 3 output dry contacts |
| Operating temperature | 0–55°C (45–55°C derated to 75% load) |
Specifications per manufacturer data and may change without notice. Contact us to confirm configuration and battery runtime for your load.
- Data centers and server rooms
- Telecom and network operation centers
- Industrial and manufacturing systems
- Hospitals, labs and critical infrastructure
Buy online: this model is available in our online store — view on SometShop.
Projects & quantities: for project pricing, sizing (load and runtime calculation), installation and maintenance contracts, request a quote or call 1-700-700-193.
Service: Somet Integration provides UPS installation, preventive maintenance and battery replacement at our lab in Lod and on site.
Request a quote
Get local pricing, availability, sizing and installation for the Delta RT 20kVA Three-Phase Online UPS from Somet Integration.
Prefer to talk? Call 1-700-700-193, email somet@sometltd.com or message us on WhatsApp.
