Liebert APM and APM2: 30 to 600 kW modular UPS
Liebert APM and its APM2 successor are Vertiv’s modular three-phase UPS covering 30 to 600 kW. Capacity is built from hot-swappable power modules inside one frame, so a room buys the kilowatts it needs today and inserts modules as racks fill. The hot-swap property is what separates this class in practice: a failed module comes out while the load stays up.
Technical specification
| Model code | Power | Input / output voltage | Phases | Topology | Efficiency | Dimensions W×D×H (mm) | Weight | Parallel / redundancy | Battery type |
|---|---|---|---|---|---|---|---|---|---|
| Liebert APM2 30 kW | 30 kW | 380/400/415 V AC (giris ve cikis) | Three-phase, 4-wire + N + PE | Modular, transformerless; three-level IGBT with silicon carbide converters; VFI-SS-111 | Up to 97% double conversion | – | – | – | – |
| Liebert APM2 60 kW | 60 kW | 380/400/415 V AC (giris ve cikis) | Three-phase, 4-wire + N + PE | Modular, transformerless; three-level IGBT with silicon carbide converters; VFI-SS-111 | Up to 97% double conversion | – | – | – | – |
| Liebert APM2 90 kW | 90 kW | 380/400/415 V AC (giris ve cikis) | Three-phase, 4-wire + N + PE | Modular, transformerless; three-level IGBT with silicon carbide converters; VFI-SS-111 | Up to 97% double conversion | – | – | – | – |
| Liebert APM2 120 kW | 120 kW | 380/400/415 V AC (giris ve cikis) | Three-phase, 4-wire + N + PE | Modular, transformerless; three-level IGBT with silicon carbide converters; VFI-SS-111 | Up to 97% double conversion | – | – | – | – |
| Liebert APM 150 kW | 150 kW | 380/400/415 V AC (giris ve cikis) | Three-phase, 4-wire + N + PE | Modular, transformerless; three-level IGBT with silicon carbide converters; VFI-SS-111 | Up to 97% double conversion | – | – | – | – |
| Liebert APM 300 kW | 300 kW | 380/400/415 V AC (giris ve cikis) | Three-phase, 4-wire + N + PE | Modular, transformerless; three-level IGBT with silicon carbide converters; VFI-SS-111 | Up to 97% double conversion | – | – | – | – |
| Liebert APM 600 kW | 600 kW | 380/400/415 V AC (giris ve cikis) | Three-phase, 4-wire + N + PE | Modular, transformerless; three-level IGBT with silicon carbide converters; VFI-SS-111 | Up to 97% double conversion | – | – | – | – |
Source of the values: Vertiv Liebert APM2 30-120 kW 400 V Site Planning Datasheet. The site planning datasheet we hold covers 30-120 kW at 400 V with a 30 kW power module; figures for 150 kW and above are supplied on request. An en dash means the manufacturer does not publish that value; we do not fill it in with an estimate. Confirm every figure against the current manufacturer document before it is written into a contract.
The references we quote in this family are Liebert APM2 30 kW, Liebert APM2 60 kW, Liebert APM2 90 kW, Liebert APM2 120 kW, Liebert APM 150 kW, Liebert APM 300 kW and Liebert APM 600 kW. Send us the reference if you already have one, or the load in kW and the runtime if you do not, and we will confirm availability and lead time.
Which one should you choose?
Hot-swap changes the maintenance conversation
In a monolithic unit, a power stage fault means a maintenance window and a bypass transfer. Here the faulty module is withdrawn and replaced while the remaining modules carry the load. On sites where scheduling downtime requires three signatures, that difference is worth more than the price gap.
Redundancy costs one module
N+1 in a modular frame is one additional power module, not a second complete UPS. On a 300 kW installation that is a materially different number, and it is the main reason modular wins on total cost when redundancy is in the specification.
The frame rating is the real ceiling
However many modules you buy, the cabinet has a rated maximum. Size the frame against the load you expect at the end of the refresh cycle, not the load on day one, because moving to a larger frame later is a new installation.
Front access decides the layout
Module replacement in this family happens from the front, so the aisle in front of the frame is a service requirement rather than a preference. Check the clearance against the door swing and the aisle width before the room layout is fixed; a frame you cannot open in place becomes a frame you must shut down to service.
Where it fits, and where it does not
Fits a room between 30 and 600 kW whose load is expected to grow in steps, or where N+1 redundancy is required at a sensible cost. Does not fit a fixed, fully known load where a monolithic unit is cheaper, and does not fit above 600 kW.
What we need in order to quote it
- Load in kW today and at the end of the refresh cycle
- Redundancy level: N or N+1
- Runtime target and battery technology
- Frame footprint available and floor loading limit
- Whether the site can accept module-level service access at the front
Request a Quote
Tell us the load in kW, the runtime you want and the delivery country. A priced quote comes back within 48 hours, usually with a second option so the trade-off is visible.
