Eaton 9PXM UPS 4-20kVA – Split Phase Power

Eaton 9PXM UPS

The Eaton 9PXM UPS is a scalable, modular UPS that combines the highest level of reliability with the lowest cost of ownership. Through 4 kVA plug-and-play power modules, the 9PXM delivers an expandable level of N+X redundancy. The 9PXM fits eight or twelve-slot tower enclosures which are easily converted into 14U and 21U rackmount solutions.

Reliable online, high-frequency, double-conversion power protection that provides flexible solutions for mission-critical

• N + X power and logic redundancy eliminating all system level single point-of-failure
• Easily scalable to adapt to changing IT environments by simply adding power and/or battery modules
• Double-conversion, online design delivers the highest level of protection
• ABM technology significantly increases battery service life
• Hot-swappable battery and power modules, each weighing less than 30 pounds for easy handling and replacement
• Configurable output
• Warranty (US and Canada): Two-year limited warranty and $250,000 load protection guarantee; optional service plans

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Product description

Eaton 9PXM UPS

The Eaton 9PXM UPS is a scalable, modular, flexible solution that combines the highest level of reliability with the lowest cost of ownership in the 4–20 kVA range. The 9PXM enables you to build a power solution specific to your needs and to expand redundancy and runtime as your needs change.

The plug-and-play power and battery modules are user replaceable so you can add them as needed without a service call or having to put a redundant system in bypass. With its low initial investment, online double-conversion technology, Eaton ABM® technology and high efficiency mode, you never have to compromise reliability for efficiency.

The versatile 9PXM is well suited for both the IT marketplace and for industrial/commercial applications. The 9PXM’s high power rating, small footprint and easy rack conversion make an ideal solution for an array of data center applications. The design features offer harmonious compatibility with 4-post or high density racks, PDU and network gear for seamless integration into an IT infrastructure.

The 9PXM is rugged enough to stand up to mission-critical applications, and it’s small footprint, customizable output options and N+X redundancy are valuable features in the retail, financial and government sectors.

Scalable to 20 kVA (N+1):
• 8-slot is scalable 16 kVA in a 14U cabinet
• 12-slot is scalable to 20 kVA (N+1) in a 21U cabinet

Variety of power distribution options:
• Hardwire and connect with an Eaton rack PDU
• Create custom outlet configuration for output
• Bypass power module configured for any application
• External battery cabinet for extended runtime

Design benefits:
• Easy conversion from tower to rack mount
• Single frame cabinet
• Hot-swappable power and battery modules
• ABM technology increases battery service life by 50 percent.
• Two communications ports for system monitoring
• High efficiency mode increases efficiency from 94 to 97 percent

Double Conversion Online UPS

Double Conversion Technology

Double Conversion Topology

The Eaton 9PXM uninterruptible power supply uses the Double Conversion Online UPS topology.  This  provides the ultimate in clean and stable electrical power for critical applications.  Incoming AC power is fed to the UPS’ rectifier converting it from AC to DC power. The converted DC power routes to a battery charging circuit and to the inverter for conversion back to AC power. The resulting “double converted” electrical power is pure sine wave output providing near perfect electrical power for connected equipment.

To ensure 7/24 up time the double conversion UPS topology utilizes a static “bypass switch” within its circuity design. If the 9PXM UPS detects a system failure, audible alarms will sound as the bypass switch is engages. This routes power around the failed UPS and ensures critical load power to target equipment.  This very important feature allows for 100% up time for critical equipment during repair.

In the event of total power failure, the UPS will power off the rectifier when the loss of power is detected. The UPS’ internal backup batteries will continue to supply DC power to the inverter. There is no transfer time as the transition to battery power is instantaneous. This feature provides true uninterruptible power to mission critical equipment.

Technical Specifications


Eaton 9PXM

Rated Power Capacity (Apparent/Active)

4, 8, 12, 16 & 20kVA

Voltage/frequency range

110/220, 120/208, 120/240, 127/220 Vac
Online: 60 Hz auto-sensing; output frequency tracks input frequency to selectable limit (±0.1 to ±5.0 Hz; ±3.0 Hz default); switches to battery operation outside this tolerance

Efficiency (Maximum%)


Overload Capacity

115% for 3 seconds; >115% for 12 cycles

Max charging (adjustable)

ABM recommends 48 hours of charging after a discharge.

Battery Module

(2) 60V, 9 Ah battery modules per two-battery slot

Operating Temperature

0°C to 40°C (32°F to 104°F) Optimal battery performance: 25°C (77°F)

Operating Elevation

Up to 3,050 meters above sea level (10,000 ft) The maximum operating ambient temperature decreases 1°C per 300m above 1525m (2°F per 1000 ft above 5000 ft)

Acoustic Noise

Less than 67 dBA


Agency Markings: NOM, UL, CUL, FCC
EMC (Class A): EN 62040-2, FCC Part 15, EN 61000-4-2 level 3 Criteria B, EN 61000-4-3 level 3 Criteria A, EN 61000-4-4, 61000-4-5, 61000-4-6, 61000-4-8
Safety Conformance CSA C22.2, No. 107.3; UL1778 5th Edition
Surge Suppression: EN 61000-4-5


(1) relay contact, (1) REPO, (2) environmental input
(2) X-Slot communication bays


2 years electronics, 2 years battery warranty (USA and Canada)



Estimated Run-Time

Battery Run Time Chart: