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Mitsubishi 9900A three-phase UPS

The Mitsubishi Electric 9900A is a double-conversion three-phase UPS rated 80 to 225 kVA at 480 V.

Mitsubishi 9900A three-phase UPS
Phase
3PH
Models
4
Lifecycle
Discontinued, serviced

Mitsubishi Electric 9900A: key facts

Sources, checked October 3, 2026: Mitsubishi Electric, UPS product lifecycle and support schedule.

Is the Mitsubishi Electric 9900A discontinued? What replaces it?

Yes. Mitsubishi Electric's product lifecycle schedule lists the 9900A with a projected end of support in December 2026 and names the 9900AEGIS as the potential replacement. See the Mitsubishi Electric 9900AEGIS page.

Units already installed keep working after the manufacturer's cut-off; what changes is parts and factory support. We maintain discontinued units and plan the replacement when it makes sense. How to plan the replacement of a discontinued three-phase UPS.

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.

9900A models

The orderable configurations we supply and service:

ModelRatingPhase / VoltagePart numberStatus
Mitsubishi 9900A 80kVA72 kW3ph in/out 480V·EOL
Mitsubishi 9900A 100kVA90 kW3ph in/out 480V·EOL
Mitsubishi 9900A 150kVA135 kW3ph in/out 480V·EOL
Mitsubishi 9900A 225kVA203 kW3ph in/out 480V·EOL

Specifications

Phase3ph in/out
Voltage480V
Models4
StatusDiscontinued

Batteries and battery cabinets for the Mitsubishi Electric 9900A

Battery strings and cabinets depend on the configuration and runtime. Batteries for Mitsubishi UPS cabinets are matched by string voltage and block size.

Mitsubishi Electric 9900A service in Canada

We service the Mitsubishi Electric 9900A 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.

Planned visits and emergency calls are arranged through on-site service for the Mitsubishi Electric 9900A.

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 9900A is one option we weigh on its merits, not the only answer.

Common questions

What is the Mitsubishi Electric 9900A?

The Mitsubishi Electric 9900A is a double-conversion three-phase UPS rated 80 to 225 kVA at 480 V.

Is the Mitsubishi Electric 9900A discontinued?

Yes. Mitsubishi Electric's product lifecycle schedule lists the 9900A with a projected end of support in December 2026 and names the 9900AEGIS as the potential replacement.

What replaced the Mitsubishi Electric 9900A?

Mitsubishi Electric's product lifecycle schedule lists the 9900A with a projected end of support in December 2026 and names the 9900AEGIS as the potential replacement.

Who services the Mitsubishi Electric 9900A in Canada?

A Canadian UPS service and supply provider, in business since 2012, services the Mitsubishi Electric 9900A 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: Mitsubishi 9900A

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.