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Toshiba · 4400

Toshiba 4400 three-phase UPS

The Toshiba 4400 Series is a three-phase UPS rated 15 to 50 kVA.

Toshiba 4400 three-phase UPS
Phase
3PH
Models
5
Lifecycle
Current model

Toshiba 4400 Series: key facts

Toshiba lists the 4400 Series as a current three-phase UPS.

Sources, checked October 3, 2026: Toshiba International, 4400 Series 3-phase UPS 15-50 kVA.

THREE PHASE POWER PATH3 PHASE INPUT480 V or 208 V feedRECTIFIERAC to DCDC BUSregulatedINVERTERDC to clean ACCRITICAL LOADracks, plant, imagingBATTERYon the DC busSTATIC BYPASSmaintenance and overload pathDouble conversion: the load stays on the inverter,so an outage produces no transfer gap.

How a three phase double conversion UPS carries the load, and where the bypass sits.

4400 models

The orderable configurations we supply and service:

ModelRatingPhase / VoltagePart numberStatus
Toshiba 4400 Series 15kVA15 kW3ph in/out (3:3) 208V 4W·Current
Toshiba 4400 Series 20kVA20 kW3ph in/out (3:3) 208V 4W·Current
Toshiba 4400 Series 25kVA25 kW3ph in/out (3:3) 208V 4W·Current
Toshiba 4400 Series 30kVA30 kW3ph in/out (3:3) 208V 4W·Current
Toshiba 4400 Series 50kVA50 kW3ph in/out (3:3) 208V 4W·Current

Specifications

Phase3ph in/out (3:3)
Voltage208V 4W
Models5
StatusCurrent

Batteries and battery cabinets for the Toshiba 4400 Series

Battery strings and cabinets depend on the configuration and runtime. For a replacement string in a Toshiba cabinet, see batteries for three-phase UPS cabinets.

Toshiba 4400 Series service in Canada

We service the Toshiba 4400 Series across Canada: preventive maintenance, battery replacement and emergency repair, including units the manufacturer no longer supports. We are a Canadian UPS service and supply provider, working on three-phase systems since 2012.

For a unit that is already installed, start with maintenance and repair for the Toshiba 4400 Series.

Sizing, redundancy and custom builds

We engineer the solution: load and growth analysis, redundancy (N, N+1, 2N), runtime and battery sizing, paralleling and switchgear, and custom configurations where the standard catalogue doesn't fit. Because we supply every major brand, the 4400 is one option we weigh on its merits, not the only answer.

Common questions

What is the Toshiba 4400 Series?

The Toshiba 4400 Series is a three-phase UPS rated 15 to 50 kVA.

Is the Toshiba 4400 Series discontinued?

No. Toshiba lists the 4400 Series as a current three-phase UPS.

Who services the Toshiba 4400 Series in Canada?

A Canadian UPS service and supply provider, in business since 2012, services the Toshiba 4400 Series across Canada: preventive maintenance, battery replacement and emergency repair, including discontinued units. Call 1 (438) 881-3363 or email info@threephaseups.ca.

Request a quote: Toshiba 4400

Tell us the application and we reply within 4 business hours with the sizing, the right system, the installation and a written quote. Three-phase installs usually need a licensed electrician, so let us know if you have one.

Do you have your own electrician?
Yearly preventive maintenance?

Or email info@threephaseups.ca · 1 (438) 881-3363

Brand names are trademarks of their owners and are used only to identify the equipment we service. We are not the manufacturer and are not affiliated with it.