PremiumTower™ S2 400V Benefit Sustainability Models

PremiumTower™ S2 400V

Sustainable resilience at its best

PREMIUMTOWER S2 400V

PremiumTower™ S2 400V the Swiss-made three-phase online double-conversion uninterruptible power supply (UPS), sets a new benchmark in reliable and eco-responsible power protection for small and medium server rooms, communications rooms, IT networks, and mission-critical applications.

Designed for businesses of all sizes, PremiumTower™ S2 400V has a power range from 10 to 80 kW. Integrated internal batteries (10 to 80 kW) minimise space requirements, eliminate the need for external battery frames, and simplify installation—ensuring cost efficiency without sacrificing performance.

With its three independent power converters, PremiumTower™ S2 400V guarantees continuity of power even in the event of a component failure, minimising the risk of downtime and data loss. Its class-leading efficiency of up to 97.1% in double conversion (VFI) delivers maximum energy savings, reduces heat dissipation, and lowers total cost of ownership—making it a truly sustainable power solution.

Industry-leading efficiency: 97.1%

Increased nominal rating (kW = KVA)

15+ years life on replaceable components

Smart-predictive fans

Backfeed protection (standard)

500% higher charging current than typical standalone UPS

Up to 80kW with internal batteries

PREMIUMTOWER S2 400V

Benefits and features

  • UPS supports dual or single AC input feeds to increase power availability further
  • Wide compatibility with different battery technologies, including Lead-acid, Lithium, NiCd, Gel, Flywheels, and more
  • Flexible number of battery blocks (18 to 50), allowing system designers to optimise cost versus autonomy time
  • Short-circuit capability of up to 3 times nominal current (3 x In) for fast protection clearing
  • Continuous operation during unexpected load demands of up to 120% of UPS nominal capacity
  • Up to 97.1% efficiency in VFI with optimised performance at partial loads
  • Lateral full access for service and maintenance
  • Reduced repair time and costs with direct component access and plug-and-play boards
  • Smart-predictive fans with closed-loop control detect wear and alert operators at the right time for replacement
  • Integrated autonomy of up to 240 battery blocks (10 to 80 kW) to reduce footprint
  • Matching battery cabinets available for extended runtimes
  • Flexible DC range for optimised system design
  • Up to 5 times more charging current than a typical standalone UPS, eliminating the need for external chargers
  • Compact footprint: only 0.28 m²for 10/20/30/40 kW with 120 internal batteries or for 60/80kW with external batteries and only 0.44 m² from 10 to 80 kW systems with up to 240 internal batteries
  • Unity power factor (kVA = kW), eliminating the need for system oversizing
  • No replaceable components for 15+ years, reducing waste and lifecycle costs

PREMIUMTOWER S2 400V

Autonomy times

PremiumTower™ S2 400V features a powerful DC converter and industry-leading charging capability, ensuring rapid battery recharge. This makes it ideal for applications requiring extended autonomy and maximum availability.

Refer to the brochure for a comprehensive overview of autonomy times.

PREMIUMTOWER S2 400V

Available models

PremiumTower models - comprehensive options

PremiumTower S2 400V is available in power ratings ranging from 10 to 80 kW, with flexible internal battery configurations and matching external cabinets that adapt to the specific needs of each installation. Refer to the brochure for a comprehensive overview of available models.
Download brochure