EATON Ellipse ECO standby UPS (500–1600 VA)
Entry-level backup: it will carry a PC through a trip or a short outage at a sensible price. The trick is knowing what it does not do — that is how you avoid buying the wrong tier.
Product photo
- Brand
- EATON
- Type
- Standby (off-line)
- Typical use
- Home PCs, routers, small office equipment
- Models covered
- Ellipse ECO 500 IEC (EL500IEC, 500 VA / 300 W), Ellipse ECO 650 IEC (EL650IEC, 650 VA / 400 W), Ellipse ECO 650 USB (EL650USBIEC, 650 VA / 400 W), Ellipse ECO 800 USB (EL800USBIEC, 800 VA / 500 W), Ellipse ECO 1200 USB (EL1200USBIEC, 1200 VA / 750 W), Ellipse ECO 1600 USB (EL1600USBIEC, 1600 VA / 1000 W)
- Category
- UPS systems / EATON
Model list
| Model | Capacity (VA/W) | Input | Output |
|---|---|---|---|
| EL500IEC | 500/300 | C14 | 3 × C13 (1 surge-only) |
| EL650IEC | 650/400 | C14 | 3 × C13 (1 surge-only) |
| EL650USBIEC | 650/400 | C14 | 3 × C13 (1 surge-only) |
| EL800USBIEC | 800/500 | C14 | 3 × C13 (1 surge-only) |
| EL1200USBIEC | 1200/750 | C14 | 4 × C13 (4 surge-only) |
| EL1600USBIEC | 1600/1000 | C14 | 4 × C13 (4 surge-only) |
Note: the Ellipse ECO has been marked for discontinuation by the manufacturer, with the Ellipse PRO range taking its place. Once current stock is gone, ask us for the equivalent model.
Two questions decide whether this model is even relevant
| Your situation | Where to look |
|---|---|
| Home PC, router, NAS — you just want the trip not to interrupt | This model is enough |
| Servers, storage, surveillance recorders | Line-interactive (5PX) |
| Precision instruments, medical or industrial control | Online (9PX) |
| The site supply swings regularly | Online, whatever the load |
Be clear about the limits of standby
Standby (off-line) is the most basic topology: the mains feeds the load directly, and the unit switches to battery only when the voltage leaves range or disappears. Two limits follow.
- No regulation and no filtering — voltage swings and noise from the mains reach the equipment unchanged.
- There is a transfer gap — brief, but not nothing on equipment that is genuinely sensitive.
Which is why this tier suits loads where an outage is annoying but not damaging. If an outage means lost data, a stopped line or a safety risk, this is not the tier to economise on.
Our advice
An entry-level unit works — in the right position. In front of the right load it is a sensible purchase; in front of the wrong one it is money spent on something that fails exactly when it is needed. If you are not sure which side your equipment falls on, send us the list and we will tell you.
Key features
- Standby (off-line) architecture — transfers to battery when the mains leaves range or fails
- Flat, quiet and light: stands vertical, sits under a desk or monitor, or wall-mounts; optional 2U rack kit
- High-performance surge protection to IEC 61643-1, including data-line protection for network and telephone
- EcoControl — shuts down power to peripherals when the master device does, saving up to 25%
- Sized for PCs, routers and NAS; not for server cabinets, precision instruments or active PFC equipment
Where it fits
Home network gear
A router and NAS ride through a trip, so a dropped connection does not turn into a corrupted volume.
A single workstation
Enough time to save and shut down cleanly — which is usually the entire point of buying one.
Small office desk
Entry-level protection for one machine and a couple of peripherals.
Frequently asked questions
Can I put a server on a standby UPS?
How do I know which tier I need?
How long will it actually run?
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 detailsTHTAK LT500–1500 series
Lithium batteries inside a line-interactive body — compact, maintenance-free, and no separate battery box to find room for.
View detailsSpecifications
| Capacity | 500 / 650 / 800 / 1200 / 1600 VA |
|---|---|
| Architecture | Standby (off-line) |
| Rated voltage | 230 V, 50/60 Hz auto-sensing |
| Input | IEC C14 |
| Output | 3–4 × C13 (some surge-only) |
| Form factor | Flat design: vertical, under-desk, under-monitor, wall-mount; optional 2U rack |
| Runtime | Short ride-through, load dependent |
| Suitable loads | PCs, routers, NAS, peripherals |
| Not suitable for | Server cabinets, precision instruments, equipment with active PFC supplies — use a pure sine wave model |
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.