Standby UPS Systems

Cost-effective battery backup for non-critical loads — protection from complete power failures.

Simple Protection When You Just Need Backup Power

In normal operation, standby UPS passes utility power directly to the load, monitoring continuously for a power failure. When a failure is detected, the inverter activates within 5–8ms and the load transfers to battery power.

This topology offers basic protection at the lowest possible cost. It provides no conditioning against sags, surges, or voltage noise — only complete outage protection. Best suited for desktop workstations, basic network gear, and non-critical equipment where the primary concern is data loss prevention during a power failure.

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Standby UPS

Models We Supply & Service

ePower Network supplies and services a focused lineup of proven standby UPS products for desktop and light-duty applications.

Standby / Desktop

Eaton 3S (formerly Powerware 3S)

Available in 550VA and 1kVA. USB communication for automatic graceful shutdown. 8ms transfer time. Small form factor suitable for desktop or wall mount installation. Ideal for individual workstations and home offices.

Standby / Desktop-Tower

Powerware 3105

Available from 300VA to 1kVA. Basic battery backup with integral surge suppression for added protection against voltage spikes. Compact desktop and tower form factor for small office environments.

Standby / Tower

Xtreme Power XST Series

Available from 350VA to 1.5kVA in tower form. USB and serial communication ports for automated shutdown software. Entry-level battery backup protection for workstations and basic networking equipment.

Standby UPS Characteristics

Understanding the operating profile of standby UPS helps determine whether it is the right fit for your specific application.

Efficiency

98%+ operating efficiency — the lowest heat generation and lowest operating cost of any UPS topology.

Transfer Time

5–8ms transfer to battery — adequate for the vast majority of equipment power supplies which tolerate brief interruptions.

Surge Suppression

Most standby UPS models include MOV-based surge protection to guard against voltage spikes from utility or lightning events.

Cost

Lowest cost topology per VA of capacity — standby UPS provides basic backup protection at the most accessible price point.

When Standby UPS Is Appropriate

Standby UPS is the right choice for loads where basic outage protection is sufficient and budget is the primary constraint.

Find the Right Standby UPS

ePower Network will match the right model, capacity, and runtime to your specific loads and budget.