EATON DX / DX RT online UPS
The workhorse of rack machine rooms: online architecture, rack installation, capacity configured after the load is actually measured.
Product photo
- Brand
- EATON
- Type
- Online double-conversion (incl. rack)
- Typical use
- Rack rooms, small-to-mid equipment rooms
- Models covered
- DX RT 1K (1000 VA / 900 W), DX RT 1KS (1000 VA / 900 W, long runtime), DX RT 2K (2000 VA / 1800 W), DX RT 2KS (2000 VA / 1800 W, long runtime), DX RT 3K (3000 VA / 2700 W), DX RT 3KS (3000 VA / 2700 W, long runtime), DX RT 3:1 10 kVA (3-phase input), DX RT 3:1 15 kVA (3-phase input), DX RT 3:1 20 kVA (3-phase input)
- Category
- UPS systems / EATON
Where the DX fits against the 9PX
Both are online double-conversion. The DX range is the value line — slightly larger per kVA, fewer premium features, noticeably lower price — and it is the right answer when the requirement is straightforward: a rack room, a defined load, standard runtime. The 9PX earns its premium where density, the lithium option or quiet operation matter.
The 3:1 models, in practice
A large share of Hong Kong industrial buildings have three-phase incoming and single-phase distribution inside the tenant floor. The DX RT 3:1 (10/15/20 kVA) takes the three-phase supply directly, balances the load across phases, and delivers single-phase output — avoiding a transformer in the room.
Key features
- Online double-conversion, 0 ms transfer, output isolated from the mains
- Output power factor 0.9–1 — driving capability matches modern PFC equipment
- 95% efficiency online, 98% in high-efficiency mode
- RT design — tower or rack mounting, switched per site
- 6–10 kVA models can be paralleled for up to 99.99% availability
- Compact — the 10 kVA model is 2U high and only 600 mm deep
- Battery voltage and charge current configurable (6–10 kVA models)
- Low input harmonics — friendly to upstream distribution and generators
Where it fits
Rack machine rooms
Everything in the cabinet — a rack-mount UPS shares the cabinet instead of taking floor space.
Branch and small equipment rooms
Limited space with remote monitoring — choose models that accept monitoring accessories.
Retrofitting backup
Adding a UPS without reworking existing wiring — rack-mount is the least invasive.
Frequently asked questions
What does the S in DX RT 2KS mean?
What does 3:1 mean?
Related models & accessories
EATON 5PX series
The pragmatic choice for small sites: line-interactive with automatic voltage regulation — enough capacity, easy to service, and priced well below three-phase territory.
View detailsEATON 9PX series
The mainstream choice for server rooms: online double-conversion keeps the output fully isolated from the mains, with efficiency and serviceability at practical levels.
View detailsEATON 9SX series
When the load draws a surge the moment it starts, the UPS's overload capacity — not its rated VA — decides whether it survives.
View detailsSpecifications
| Capacity | 1–20 kVA (1–3 kVA single-phase; 3:1 three-phase input at 10–20 kVA) |
|---|---|
| Architecture | Online double-conversion, 0 ms transfer |
| Output power factor | 0.9–1 |
| Efficiency | 95% online; 98% in high-efficiency mode |
| Rated voltage | 200/208/220/230/240 V (380/400/415 V on 3:1 models) |
| Frequency | 50/60 Hz |
| Form factor | Tower or rack (RT) |
| Paralleling | Supported on 6–10 kVA models |
| Output waveform | Pure sine wave |
| Runtime | Depends on load and external battery packs |
| Certification | CE and others |
Specifications follow the manufacturer's latest data. Actual configuration must be sized against the site load, required runtime and distribution environment — this table is for selection reference only.