ABB MegaFlex: Modular UPS for High-Density Data Centers

ABB MegaFlex is one of the most recent three-phase modular UPS platforms on the market. Launched in 2020, it is designed for high-power data centers — Megawatt scale — where density per rack and operational efficiency weigh more than the provider’s brand. In the Mexican market, where ABB has a strong historical presence in electrical distribution, MegaFlex has become a competitive option for large-scale projects.

To understand where MegaFlex fits in the global UPS portfolio, it is useful to review its technical specifications, its scalability model, and its TCO proposal against consolidated alternatives such as Schneider Galaxy VX, Vertiv Liebert EXL S1, or Eaton 9395M in parallel configurations.

Architecture and specifications

ABB MegaFlex is offered in two main models designed for large-scale data centers: MegaFlex DPA 1000 (1 MW / 1000 kW per cabinet) and MegaFlex DPA 1500 (1.5 MW / 1500 kW per cabinet). The platform uses hot-swappable 250 kW power modules, which allows scaling capacity without interrupting operation and facilitates on-site maintenance.

In terms of efficiency, MegaFlex reaches 97.5% in double conversion mode and up to 99% in ECO mode, according to data published by ABB. The unit complies with IEC 62040-3, the international reference standard for UPS, and is designed to operate in data center environments with temperatures up to 40°C without degradation.

Another relevant specification is the output power factor: MegaFlex offers 1.0 (real power equal to apparent power), which makes it competitive for modern IT loads where the power factor approaches unity. This means that a 1000 kVA MegaFlex actually delivers 1000 kW of usable power, not the 900 kW typical of a UPS with a 0.9 factor

When ABB MegaFlex is suitable

The decision between MegaFlex and other similar platforms depends on five variables:

1. IT load density: MegaFlex is designed for high-density data centers. In sites with 5-10 kW per rack, there are more economical alternatives.
2. Future scalability: if growth from 1 MW to 2-3 MW is expected in 3-5 years, the modularity of MegaFlex with 250 kW interchangeable modules is a clear advantage.
3. Power factor of the loads: for loads with PF close to 1.0 (modern servers, GPUs), MegaFlex makes better use of its nominal capacity.
4. Integration with existing ABB infrastructure: if the data center already uses Tmax XT panels, Emax 2 switches, or ABB substations, MegaFlex integrates naturally with that ecosystem.
5. 24/7 operation with high energy cost: the 97.5% efficiency in double conversion reduces losses and, in the Mexican market with DAC tariffs, translates into measurable savings over 3-5 years.

Comparison with direct competition

MegaFlex competes head-to-head with:

1. Schneider Galaxy VX (1000-1500 kVA, modular, eConversion 99%): Schneider wins in software and ecosystem; ABB wins in mechanical robustness and power factor.
2. Vertiv Liebert EXL S1 (1000-1200 kVA, modular, double conversion 97%): Vertiv has better integration with its own PDU and cooling ecosystem; ABB has better energy efficiency and modules with higher unit capacity.
3. Eaton 9395M in parallel configurations (300-1200 kVA per unit, up to MW in parallel): Eaton has more time on the market and a wider installed base at high scale; ABB MegaFlex is more recent and with unity power factor.

La decisión final depende del ecosistema del cliente y del perfil del integrador. En proyectos donde ya hay ABB Tmax/Emax, MegaFlex es la elección natural; en proyectos donde Schneider domina el ecosistema de software, Galaxy VX sigue siendo la opción preferida.

Service and support in Mexico

ABB operates in Mexico through ABB Mexico, headquartered in CDMX and service centers in Monterrey and Guadalajara. For UPS, support is coordinated with the network of certified integrator partners. The brand has strengthened its presence in the data center segment in recent years, although it does not yet reach the service coverage of Schneider or Vertiv.

For projects where the response SLA is critical, it is advisable to verify in advance the availability of certified technicians in the data center’s city. ABB has invested in training and certification, but the installed base of MegaFlex in Mexico is still limited compared to Galaxy VX or 9395X.

What ABB MegaFlex does not solve

MegaFlex is an excellent UPS, but it is not a complete ecosystem. It does not include rack PDUs, cooling, or DCIM software. If the project requires integration with those components, they must be purchased separately or a provider that offers the complete portfolio (Schneider or Vertiv) must be chosen.

For data centers that prioritize operational simplicity and a single provider, MegaFlex may not be the optimal option. For projects where the UPS is the critical piece and the other components are already defined, MegaFlex is a solid and competitive alternative.

Conclusion

ABB MegaFlex is a compelling platform for data centers that are already in the ABB ecosystem and plan to grow from 1 MW to several MW in the next 3-5 years. Its real modularity, its 97.5% efficiency in double conversion, and its unity power factor put it on the same level as Schneider Galaxy VX and Vertiv Liebert EXL S1.

Before choosing MegaFlex, it is advisable to validate three things with the manufacturer or with a certified integrator: real availability of critical spare parts in Mexico, SLA response capacity for your location, and compatibility with your current electrical architecture. It is not a UPS to improvise with.

Are you evaluating a three-phase modular UPS for a data center in Mexico? Speak with a Noxtel advisor for a no-obligation sizing. We help you compare MegaFlex with Schneider Galaxy VX, Vertiv EXL S1, and Eaton 9395M according to your load, growth profile, and required SLA.

Sources

[1] ABB — MegaFlex product page: https://new.abb.com/ups/megaflex

[2] ABB — MegaFlex datasheet (PDF): https://search.abb.com/library/Download.aspx?DocumentID=9AKK107992A8879&LanguageCode=en&DocumentPartId=&Action=Launch

[3] IEC 62040-3 — Uninterruptible power systems: https://webstore.iec.ch/publication/5973

[4] Wikipedia — ABB: https://en.wikipedia.org/wiki/ABB