Modem, router or NBN equipment
Use the 3S Mini for compatible low-voltage DC devices, or a 3S powerboard UPS when standard AC outlets are required.
Compare Eaton standby, line-interactive, pure sine wave and online double-conversion UPS systems for modems, PCs, NAS, network racks, servers and critical infrastructure.

Choose by the connected equipment’s actual watt load, the required protection topology and the runtime you need. Do not choose using VA alone. Add the watts of every protected device, allow at least 20–30% capacity headroom, and then check Eaton’s runtime data at your expected load.
Use the 3S Mini for compatible low-voltage DC devices, or a 3S powerboard UPS when standard AC outlets are required.
Start with the 5S range for line-interactive protection and automatic voltage regulation.
Choose 5SC when pure sine wave output is required, after checking the total watt load and outlet type.
Choose 9SX or 9PX online double-conversion UPS for continuously conditioned power and zero transfer time.
Selecting a UPS requires more than matching a VA number. Device Deal can help compare load capacity, runtime, outlet type, topology, rack format, management options, battery expansion and maintenance requirements before purchase.
Genuine Eaton products with Australian warranty and manufacturer support.
Help matching the UPS to your PC, NAS, network cabinet, server room or business application.
Source UPS systems, PDUs, bypass switches, rail kits, batteries and management accessories.
Request assistance for multi-site rollouts, server rooms, schools, government and commercial projects.
The correct topology depends on how sensitive the equipment is and how costly an interruption would be. Runtime depends on the connected watt load, battery condition, temperature and optional battery modules.
Cost-effective blackout and surge protection for modems, routers, basic PCs and home-office equipment.
Automatic voltage regulation for office workstations, network equipment and point-of-sale systems.
Line-interactive protection with sine wave output for compatible sensitive IT equipment and active-PFC power supplies.
Higher-density rack or tower protection for edge IT, network closets and distributed infrastructure.
Online double-conversion protection for servers, storage, networking and mission-critical tower installations.
High-power-density online protection for rack environments, virtualisation, edge computing and data-centre applications.
Use this table as a starting point, then confirm the exact Eaton model, watt capacity, outlets and runtime before ordering.
| Series | Topology | Best suited to | Why choose it |
|---|---|---|---|
| 3S / 3S Mini | Standby or compact DC backup | Home internet, basic PC and small electronics | Simple, affordable backup where continuous power conditioning is not required. |
| 5S | Line-interactive with AVR | Office PCs, POS and network equipment | Corrects many voltage variations without using the battery. |
| 5SC | Line-interactive, sine wave output | NAS, small servers and sensitive IT equipment | Broader compatibility with equipment requiring a clean sine wave on battery. |
| 5P / 5PX | Advanced line-interactive | Network racks, edge IT and business systems | Higher power density, rack options and stronger management capabilities. |
| 9SX | Online double-conversion | Critical tower servers, storage and networking | Continuously conditioned output with zero transfer time. |
| 9PX | Online double-conversion | Rack servers, virtualisation and data-centre infrastructure | High power density, rack/tower flexibility and enterprise management options. |
Use 3S for straightforward backup and surge protection. Move to 5S when automatic voltage regulation and more capacity are required for office workstations or networking equipment.
Check the actual power draw and required runtime. A UPS should not normally be operated continuously at its maximum watt rating.

These ranges suit sensitive workstations, NAS, network closets, communications racks and edge infrastructure. Compare sine wave requirements, rack depth, watt capacity, outlet type and management options.
Do not connect a laser printer to a typical UPS unless the UPS and printer manufacturers explicitly support the load. Laser printers can have high startup and fuser current.

Online double-conversion UPS systems continuously condition incoming power and provide zero transfer time. They are the preferred choice for critical servers, storage, virtualisation, VoIP and network infrastructure where interruption is unacceptable.
Optional network cards, external battery modules, bypass solutions and power-management software may be available depending on the exact model.

Complete the installation with compatible power distribution, rack hardware, maintenance bypass and replacement batteries. Always check accessory compatibility against the exact UPS part number.

Capacity and runtime are different. The watt rating tells you the maximum supported load; the battery runtime tells you how long that load can remain powered.
Add the actual or measured watts of every device that will be connected to battery-backed outlets.
Use Eaton’s model-specific runtime information. Runtime falls as load rises and also varies with battery age, temperature and optional battery modules.
Direct answers to common Eaton UPS selection, sizing and compatibility questions.
Send us the device list, measured or estimated watt load, required runtime, outlet type, rack format and management requirements. Our team can help shortlist compatible Eaton UPS and accessory options.
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