Vertiv UPS Systems Australia

Line-interactive Liebert models (PSA, PSI) use automatic voltage regulation to correct brownouts and surges without touching the battery, switching to battery within about 2–4 ms during an outage, ideal for servers, network racks and most business IT. Online double-conversion models (GXT5, ITA2, and three-phase APM, EXS and NXC) run the load permanently through the inverter, so transfer time is effectively zero and the output is a fully regenerated pure sine wave. Online is the right choice for mission-critical, medical or sensitive loads, poor-quality mains, and where extended runtime matters.

For most small-to-mid server rooms, a Liebert PSI (line-interactive, up to 3kVA) or the online Liebert GXT5 (500VA–10kVA) gives reliable rack or tower protection with pure sine-wave output, the GXT5's rack/tower-convertible chassis and zero transfer time make it the popular choice for critical racks. For larger rooms and data centres needing redundancy and scalability, step up to the modular Liebert APM or three-phase EXS and NXC. The right pick depends on total load (watts/VA), runtime, redundancy and rack space, our team sizes it for you, free.

Add up the nameplate wattage of every device the UPS will protect and multiply by about 1.25, sizing to roughly 80% of the UPS's rated capacity, to leave headroom for growth. Many current Liebert models, including GXT5 6–10kVA, have a unity power factor, so the VA rating equals the watt rating and you get more usable power per unit. Then decide how long the load must run on battery, which determines battery capacity and whether external battery cabinets are needed. Undersizing risks overload and oversizing wastes budget, so it's worth a professional load assessment. Contact us for free sizing advice.

Most Vertiv Liebert UPS batteries last around 3–5 years depending on model, operating temperature and load. Batteries are replaceable, hot-swappable on the GXT5 and many other models, and replacing them at end of life costs far less than replacing the whole UPS. UPS Solutions supplies genuine Vertiv and Liebert batteries and external battery cabinets, and can carry out replacement on-site.

Yes. We support current and legacy Vertiv and Liebert systems, including the PSI, GXT5, APM, EXS and NXC, plus discontinued platforms such as the Liebert GXT, NX, NXL and Hipulse. We supply replacement batteries and spare parts, advise on lifecycle and end-of-life timing, and plan migration or upgrade paths to current models where it makes sense, including trade-in options.

Yes. UPS Solutions is an Australian-owned critical-power specialist with teams across Sydney, Melbourne, Brisbane, Perth, Adelaide, Canberra, Gold Coast, Sunshine Coast, Hobart and Darwin. We provide nationwide supply, installation, commissioning, preventive maintenance, repairs and 24/7 emergency support for Vertiv Liebert UPS systems. Call 1300 555 992 or get in touch.