Comparison
APC Galaxy VX vs Eaton 9395 vs Vertiv Liebert EXL S1
For large data centres the three platforms overlap between roughly 500 and 1,200 kW. The APC Galaxy VX runs from about 500 to 1,500 kW, the Eaton Power Xpert 9395P from 200 to 1,200 kW (with 600/575 V models) and the 9395XC from 1,125 to 2,250 kW, and the Vertiv Liebert EXL S1 from 250 to 1,200 kW at 480 V. Each manufacturer quotes up to 99% efficiency in its high-efficiency mode.
Side-by-side specifications
| Specification | APC Galaxy VX | Eaton Power Xpert 9395P | Eaton 9395XC | Vertiv Liebert EXL S1 |
|---|---|---|---|---|
| Type | Large modular double-conversion three-phase UPS | Large double-conversion three-phase UPS | High-density double-conversion three-phase UPS | Large three-phase UPS, single-module or multi-module |
| Power range | About 500 to 1,500 kW (400 V and 480 V models) | 200 to 1,200 kW, at 480 V, 400 V, 400/415 V or 600/575 V | 1,125 to 2,250 kW at 480 V (3-wire) | 250 to 1,200 kW at 480 V (60 Hz) |
| North American voltages | 480 V | 480 V, 600/575 V | 480 V | 480 V |
| Efficiency | Up to 99% in eConversion mode | Up to 97% in double conversion | Up to 97% in double conversion | Up to 99% in Dynamic Online mode, with a 0 ms transfer back to inverter |
| Batteries | External battery systems, with lithium-ion options | Lead-acid or lithium-ion battery options | Not stated | Not stated |
| Status | Current | Current | Current | Current |
Sources, checked October 3, 2026: Schneider Electric Canada, Galaxy VX range; Schneider Electric Canada, GVX500K500HS product page; Eaton, 9395 UPS family page; Eaton, 9395XC UPS page; Vertiv, Liebert EXL S1 UPS 250-1200 kW; Vertiv, Liebert EXL 625-1200 kVA (discontinued).
How do the Galaxy VX, the Eaton 9395 and the Liebert EXL S1 compare?
All three are large double-conversion platforms for data halls, colocation and industrial sites. Their high-efficiency modes have different names and mechanics: Schneider Electric's eConversion (the factory default on the Galaxy V-Series since 2022), Eaton's Energy Saver System, and Vertiv's Dynamic Online mode, which Vertiv states transfers back to the inverter in 0 ms. In plain double conversion, Eaton quotes up to 97% for the 9395P and 9395XC.
Which one fits a Canadian 600 V site?
Of the models compared here, Eaton lists 600/575 V versions of the Power Xpert 9395P. The Galaxy VX and the Liebert EXL S1 are listed at 480 V (and 400 V for the Galaxy VX), which on a 600 V distribution means a transformer in the path. Confirm the voltage options for your exact rating with the manufacturer before you design around it.
Which older systems do they replace?
Vertiv names the Liebert EXL S1 as the replacement for its discontinued Liebert EXL (625 to 1,200 kVA) and Liebert NX 225 to 600 kVA. Schneider Electric points owners of discontinued Symmetra PX 250 and 500 kW frames to Galaxy VX models. Eaton's original Power Xpert 9395 (225 to 1,100 kVA) remains in its current 9395 family alongside the 9395P.
Comparing the Galaxy VX with the Eaton 93PM?
They serve different sizes. The Galaxy VX starts at about 500 kW; the Eaton 93PM covers 10 to 200 kW at 208 V and 220 V and 50 to 250 kW at 480 V. For a like-for-like comparison with the 93PM, see Eaton 93PM vs APC Galaxy VS vs Vertiv Liebert APM2.
All three platforms are serviced under data-centre UPS service, and Galaxy VX configurations are listed among the APC Galaxy VX systems online.
Common questions
What is the Eaton equivalent of the APC Galaxy VX?
In the same power class, Eaton's Power Xpert 9395 family: the 9395P from 200 to 1,200 kW and the 9395XC from 1,125 to 2,250 kW. The Galaxy VX runs from about 500 to 1,500 kW.
What replaced the Liebert NXL and the Liebert EXL?
Vertiv names the Liebert EXL S1 (250 to 1,200 kW) as the replacement for the discontinued Liebert EXL and Liebert NX 225 to 600 kVA. Its Liebert NXL page lists the NXL as discontinued without naming a single replacement.
Which large three-phase UPS comes in 600 V?
Among the models compared here, Eaton lists 600/575 V versions of the Power Xpert 9395P. The Galaxy VX and the Liebert EXL S1 are listed at 480 V.
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