Eaton 9355 3-Phase, 10-15, 20-30 kVA UPS


Eaton 9355 20 – 30 kVA

The Eaton® 9355 is a mid-size, 3-phase uninterruptible power supply (UPS) that delivers superior power protection for the ever-expanding loads in today’s space-constrained data centers. The double-conversion topology of the 9355 means that it protects IT infrastructure from all 9 of the most common power problems to give data center managers greater peace of mind. The 9355 also offers an industry-leading combination of flexibility, scalability and power density—all in an innovative, high efficiency package.

With advances in miniaturization and processing power, a single rack of equipment will soon demand 15 to 25 kVA of power—and more equipment than ever will be served by dual-cord power supplies. It’s a challenge to provide power protection for expanding loads in shrinking spaces.

That’s the reality for which Eaton designed the Powerware 9355 UPS. This advanced UPS delivers 10 kVA to 30 kVA of power protection in a sleek tower only 12” wide and 33” deep, including internal batteries. With such a small footprint, you have more options for locating the UPS and more data center space available for future expansion.

The innovative design of this UPS delivers the industry’s best performance combination of high efficiency, low input current distortion and high power factor. The cumulative result of these advancements is maximum economy, adaptability, and power performance.

Features Include:

  • Compact tower form factor offers up to 75 percent smaller footprint and 13 percent more power capacity than comparable UPSs for industry-leading power density
  • All-in-one design with internal batteries and integrated power distribution module with maintenance bypass switch delivers a complete power protection solution in one box for simplified installation
  • Double-conversion topology provides complete power protection, isolating valuable IT equipment from all nine of the most common power problems
  • High 0.9 output power factor for more real power in less spaceScalable 10 kVA and 20 kVA configurations can be upgraded to provide 50 percent more power without additional hardware
  • Patented Powerware Hot Sync paralleling technology enables paralleling of up to four 9355 UPS systems for additional capacity or redundancy
  • Microprocessor-controlled ABM technology with innovative three-stage charging technique extends the useful life of UPS batteries and optimizes battery recharge time
  • Power management software suite includes applications for remote UPS monitoring, management and shutdown to help ensure system and data integrity
Powerware_9155_&_9355 2

Eaton 9355 10 – 15 kVA

Warranty: (USA and Canada) 1-Year Limited Warranty

Power Rating: 10, 15, 20 and 30 kVA at 0.9 power factor

Input Voltage: 208V/120V or 220V/127V

Output Voltage: 208V/120V or 220V/127V
480V: 120V/208V or 600V:
120/208 with input isolation
transformer (at 60 Hz only)

Frequency: 50/60 Hz, auto-sensing

Form Factor: Small-footprint tower, black


10 and 15 kVA 2-high configuration: 32.2″ H x 12″ W x 32.5″ D

10 and 15 kVA 3-high configuration: 47.8″ H x 12″ W x 32.5″ D

20 and 30 kVA: 66″ H x 20″ W x 34″ D

Topology: Double conversion




9355 UPS Brochure                                9355 10-15 UPS Manual               9355 20-30 UPS Manual


9355 20-30 Tie Cabinet Manual              9355 10-15 Parallel UPS Manual


9355 20-30 UPS Seismic Kit Manual