Sentinel Tower STW

Double Conversion Single Phase Uninterruptible Power Supply

Sentinel Tower is the ideal solution for protecting mission-critical systems such as safety devices, telecommunications equipment but also IT systems to ensure maximum power reliability.The series includes 5-6 kVA single/single phase and 8-10 kVA single/three-phase input single-phase output models with on-line double conversion technology (VFI):the load is powered continuously by the inverter which supplies a sinusoidal voltage, filtered and stabilised in terms of form and frequency.

In terms of technology and performance, Sentinel Tower is one of the best UPS available on the market today: three level inventer to achieve 95% efficiency, output power factor 1 to increase in efficiency of system and devices and reduce power system losses. Selectable Economy Mode and Smart Active Mode functions; new custom diagnostics LCD display, RS232 and USB interfaces with Powershield3 software, ESD input, interface slot with optional boards.

High UPS reliability

  • Total microprocessor and DSP control
  • Interruption-free static and manual bypass
  • Specifications guaranteed up to 40°C (the components are designed to work at high temperatures and thus are subject to less stress at normal temperatures)

Parallelable

Parallel configuration of 3 units for (2+1) redundant or power parallel system. The UPS continues to operate in parallel even if the connection cable is interrupted (Closed Loop).

High-quality output voltage

  • Even with non-linear loads (IT loads with a crest factor of up to 3:1)
  • High short circuit current on bypass
  • High overload capacity: 150% by inverter (even with mains failure)
  • Filtered, stabilised and reliable voltage (double conversion on-line technology – VFI compliant with EN62040-3), with filters for the suppression of atmospheric disturbances
  • Power factor correction: UPS input power factor close to 1 and sinusoidal current uptake

High battery reliability

  • Automatic and manual battery test
  • Proper battery care is critical to ensuring correct UPS operation in emergency conditions. The Riello UPS battery care system consists of a series of features and capabilities to optimise battery management and obtain the best performance and operating life possible
  • Unlimited extendible runtime using matching Battery Boxes
  • The batteries do not cut in during mains failures of <20 ms (high hold up time) or when the input supply is between 184 V to 276 V

Advanced Communications

  • Compatible with Riello Connect remote monitoring
  • Advanced multi-platform communications for all operating systems and network environments: PowerShield3 monitoring and shutdown software for Windows operating systems 10, 8, 7, Hyper-V, 2012,2008, and previous versions, Mac OS X, Linux, VMWare ESXi, Citrix XenServer and other Unix operating systems
  • RS232 serial and USB ports
  • Plug and play function
  • Slot for installation of communications boards

Series Table

Model Nominal Power (VA) Nominal Voltage  Voltage Tolerance Dimensions (WxDxH)(mm)
STW 5000 5000 220-230-240 Vac 230 Vac ± 20% 250 x 698 x 500
STW 6000 6000 220-230-240 Vac 230 Vac ± 20% 250 x 698 x 500
STW 6000 ER 6000 220-230-240 Vac 230 Vac ± 20% 250 x 698 x 500
STW 8000 8000 380 – 400 – 415 Vac (3W+N+PE)
220 – 230 – 240 Vac (1W+N+PE)
400 Vac ± 20% / 230 Vac ± 20% 250 x 698 x 500
STW 10000 10000 380 – 400 – 415 Vac (3W+N+PE)
220 – 230 – 240 Vac (1W+N+PE)
400 Vac ± 20% / 230 Vac ± 20% 250 x 698 x 500
STW 10000 ER 10000 380 – 400 – 415 Vac (3W+N+PE)
220 – 230 – 240 Vac (1W+N+PE)
400 Vac ± 20% / 230 Vac ± 20% 250 x 698 x 500

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