Eaton Standby UPS — Canada

Eaton Standby UPS

Eaton standby UPS — 3S 550–700 VA and Ellipse ECO 500–1600 VA tower. The Eaton entry tier for desktop, modem, router, point-of-sale, and small-office electronics.

  • Ships from Canada
  • Canadian shipping
  • Manufacturer warranty

Eaton Standby UPS catalogue

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About Eaton Standby UPS

What is an Eaton standby UPS?

Standby (offline) UPS topology runs the load directly from utility power and switches to battery only during an outage or out-of-tolerance event. Transfer time typically 6–10 ms. Simplest topology, lowest cost, right fit for desktop, point-of-sale, small networking, security DVR, modem and router.

Eaton's standby tier covers the 3S series (550 / 700 VA tower) and the Ellipse ECO line (500–1600 VA tower with surge-only outlets). UPSPLUSBATTERY.CA stocks the line with matching Eaton replacement batteries. For server and pure-sine requirements, step up to Eaton line-interactive UPS (5P / 5PX). Full Eaton catalog at Eaton UPS.

Eaton standby families

SeriesVA rangeUseOutput
3S550 / 700 VADesktop, modem, router, small POS(6) NEMA 5-15R or (4) IEC C13 + 4 surge
Ellipse ECO500 – 1600 VAWorkstation, home office, small AV4–8 IEC outlets, surge + battery

All ship with USB shutdown port and simulated sine wave output on battery. Outlets typically split between battery-backed and surge-only. UL listed, RoHS compliant.

How to choose

Standby vs line-interactive

Standby is fine when utility is reasonably clean and load tolerates 6–10 ms transfer. Line-interactive (Eaton 5P, 5PX) adds AVR — boosts low voltage and bucks high voltage without going to battery, extending battery life. Topology comparison.

Sizing

Add nameplate watts of every load, multiply by 1.25 buffer, pick UPS whose watt rating exceeds. Modem + router + small NAS ~50 W → 3S 550 with headroom. Workstation + 24" monitor ~120 W → Ellipse ECO 1200. UPS sizing guide.

Standby fit check

3S and Ellipse ECO produce simulated (stepped-square) sine wave on battery. Acceptable for switching power supplies on desktops, monitors, modems, routers, switches, NVRs. Not appropriate for active-PFC server PSUs, lab instrumentation, medical equipment, or motors with high inrush.

Spec reference

ModelPowerOutletsReplacement battery
3S550550 VA / 330 W(6) NEMA 5-15R, surge + battery3S Battery (Eaton P/N)
3S700700 VA / 420 W(6) NEMA 5-15R, surge + battery3S Battery (Eaton P/N)
Ellipse ECO 800 IEC800 VA / 500 W(4) IEC C13Ellipse ECO battery
Ellipse ECO 1600 IEC1600 VA / 1000 W(8) IEC C13Ellipse ECO battery

USB cable included for shutdown integration with Windows, macOS, Linux. Front-panel LED indicators on 3S; LCD on most Ellipse ECO models.

Replacement batteries

3S and Ellipse ECO use Eaton-spec internal SLA cartridges. Aftermarket replacements stocked as compatible — built to identical V, Ah, terminal, and connector spec. 1-year UPSPLUSBATTERY warranty. Browse Eaton replacement batteries.

Installation and warranty

All standby plug-and-play on standard NEMA 5-15P (3S, NA Ellipse) or IEC C14 (Ellipse IEC variants). Manufacturer warranty (USA and Canada) typically 2 years on 3S and Ellipse ECO. Coordinated through our Canadian team. Shipped from our Canadian warehouse. Replies within 1 business day.

FAQ

Will an Eaton standby protect a server?

Generally no. 3S and Ellipse ECO produce simulated sine on battery and have 6–10 ms transfer. For any server or NAS use 5P, 5PX, 9SX, or 9PX.

Runtime?

Stock runtime 5–15 minutes at half load depending on model. 3S and Ellipse ECO do not accept external battery packs.

Replace battery cartridge myself?

Yes. Tool-less or screw-fastened battery door. How to install UPS battery.

USB shutdown software?

Yes — ships with USB cable. Compatible with Eaton Intelligent Power Protector (IPP) free download — Windows, Linux, macOS. NUT compatible.

Surge-only outlets?

Most 3S and Ellipse ECO include 2–4 surge-only outlets in addition to battery-backed.

Battery life?

3–5 years SLA in 20–25 °C climate-controlled.

Canadian warranty?

Yes — Eaton 3S and Ellipse ECO warranty covers USA and Canada. RMA does not require cross-border shipping.

Eaton Standby UPS — Canada

Eaton standby UPS systems offer essential battery backup and surge protection for home offices, workstations, and non-critical equipment at an accessible price point. Eaton's standby units are known for their compact footprint and reliable performance in light commercial and home office environments.

Key Eaton Standby UPS Models

  • Eaton 5S Series — 550VA to 1500VA, compact tower
  • Eaton 3S Series — 550VA to 700VA, budget-friendly protection

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