Toshiba G9400 three-phase UPS

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

G9400 models

The orderable configurations we supply and service:

Specifications

Efficiency & module architecture

The G9400 is Toshiba's megawatt UPS, 1200, 1600 and 2000 kVA at 480 V, built from 400 kW parallel power modules on Gen-7 CSTBT IGBTs. It holds about 97% online efficiency across the load range in a small footprint. The parallel-module design is inherently redundant: if a module faults, the rest stay online in double conversion as long as the load is within their capacity, instead of dropping the whole unit to bypass. Up to six systems parallel for capacity or N+x redundancy.

Isolation, fault tolerance & hibernate

Each module carries a DC isolation contactor (CB2) as standard (many competitors make it an option) so the UPS can take a single module offline on a fan failure while the others keep supplying double-conversion power, and it meets the UL 1778 EPO isolation requirement without external relay schemes. 100 kAIC fuses are standard in the static bypass. A selectable High Efficiency Hibernate mode rests modules below ~50% load for up to ~3% more system efficiency, rotating them so they age evenly.

Batteries and battery cabinets for the Toshiba G9400

Battery strings and cabinets depend on the configuration and runtime. A worn string in the Toshiba G9400 can be rebuilt from the UPS battery block catalogue.

Toshiba G9400 service in Canada

We service the Toshiba G9400 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.

• Phone: 1 (438) 881-3363
• Email: info@threephaseups.ca
• Coverage: across Canada, in English and French

Repairs on running and out-of-warranty units are handled under Toshiba G9400 service and repairs.

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 G9400 is one option we weigh on its merits, not the only answer.

Common questions

What is the Toshiba G9400?

The Toshiba G9400 is a large online three-phase UPS rated 400 to 2,000 kVA at 480 V (1,050 to 1,750 kVA at 400 V).

Is the Toshiba G9400 discontinued?

No. Toshiba lists the G9400 as a current three-phase UPS.

Who services the Toshiba G9400 in Canada?

A Canadian UPS service and supply provider, in business since 2012, services the Toshiba G9400 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 G9400

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.