Backup Power (UPS)

Online UPS

Discover Eaton’s double-conversion online UPS offering. Online UPSs provide the highest level of protection by isolating equipment from raw utility power—converting power from AC to DC and back to AC. Unlike other topologies, double conversion provides zero transfer time to battery for sensitive equipment. This topology is best applied to mission-critical equipment and locations where power generally is poor.

UPS topology 101-Online UPS. Explore the full range of Eaton Online UPSs below, with the different types of power supply, form factors and power factors.

With an online Uninterruptible Power Supply (UPS) operating in double-conversion mode, power flows through a rectifier and an inverter, which charges the batteries and converts incoming utility power from AC to DC. Also, a separate rectifier from the powertrain charges the batteries in most double-conversion UPS <10 kVA. In this way, power is continuously provided to connected equipment, filtering power anomalies with zero transfer time between utility power and battery mode. Online UPSs are best suited for highly sensitive IT equipment, PLC power supplies, ice cube relays and other sensitive electronics.

Different types of UPS

Read about UPS FAQs

UPS runtime graphs

Eaton Online UPS (Single Phase UPS)

Eaton DX RT UPS

Single phase online UPS, 6-10 kVA, available in flexible convertible rackmount and tower form factor, power factor 1.0

Eaton 9E UPS

Single phase online UPS, 1-20kVA, available in tower form factor, power factor 0.8

Eaton 9PX UPS

Single phase online UPS, 700VA-11kVA, available in flexible convertible rackmount and tower form factor, power factor up to 1.0

Eaton 9PX Lithium-ion UPS

Single phase online UPS, 1-3kVA, available in flexible convertible rackmount and tower form factor, Lithium-ion compatible, power factor 1.0

Eaton 9PX Marine UPS

Single phase online UPS, 1.5 or 3kVA, available in flexible convertible rackmount and tower form factor, for Marine and Offshore use, power factor 1.0

Eaton 9SX Marine UPS

Single phase online UPS, 1 or 3kVA, available in tower form factor, DNV GL type approval for Marine and Offshore use, power factor 0.9

Eaton 9SX UPS

Single phase online UPS, 700VA-20kVA, available in Rack or Tower form factors, power factor up to 1.0

Eaton Online UPS (Three Phase UPS)

Eaton 9155 Marine UPS

Three phase online UPS, 8-40 kVA, available in tower form factor, DNV GL type approval for Marine and Offshore use, power factor 0.9

Eaton 91PS & 93PS UPS

Three phase online UPS, 8-40kVA, available in tower form factor power factor 1.0

Eaton 93E UPS

Three phase online UPS, 15- 500kVA, available in tower form factor, power factor 0.9

Eaton 93E XL UPS

Three phase online UPS, 10-40kVA, available in tower form factor, power factor 0.9 with internal battery

Eaton 93PM UPS

Three phase online UPS, 10-400kW, available in tower form factor, Lithium-ion compatible, power factor 1.0

Eaton 93PR UPS

Three phase online UPS, 15-80kVA, available in tower form factor, Lithium-ion compatible, power factor 1.0

Eaton 93PR UPS

Three phase online UPS, 25-1200kVA, modular form factor, hot swappable and hot scalable, power factor 1.0

Eaton 9PHD Marine UPS

Three phase online UPS, 30-200kW for Marine and Offshore use, available in tower form factor, Lithium-ion compatible, power factor 1.0

Power Xpert 9395P UPS

Three phase online UPS, 250-1200kVA, available in modular form factor, Lithium-ion compatible, power factor up to 1.0

Question about Eaton online UPS?

Please fill in the contact form. Your local Eaton team will get in touch with you shortly.

First name*

Last Name*

Email*

Country or Region*

Industry*

Business Phone*

Company*

Job title*

I am interested in the following product*

Additional Requirements / Comments

By submitting this form, I agree that the personal data that I provide can be shared with Eaton, channel partners and third-party providers working on behalf of Eaton in accordance with the Eaton Privacy Policy and in compliance with applicable data privacy laws.

Subscribe to updates

I agree to be informed regularly about Eaton products, promotions and news. I understand and agree that Eaton will use my data to personalize marketing communications. Any use of my personal data will take place in compliance with the relevant and applicable data privacy laws and the Eaton Privacy Policy. I can withdraw my consent to receive marketing communications at any time by contacting Eaton.

Still can't find what you are looking for?

The most suitable type of UPS for a given project depends on budget, environment, and sensitivity of equpment. Learn more about UPS topology or view Eaton's full range of UPS products.

Eaton is an intelligent power management company dedicated to improving the quality of life and protecting the environment for people everywhere. We are guided by our commitment to do business right, to operate sustainably and to help our customers manage power ─ today and well into the future. By capitalizing on the global growth trends of electrification and digitalization, we’re accelerating the planet’s transition to renewable energy and helping to solve the world’s most urgent power management challenges.