Othonos 39, 17343
Agios Dimitrios Athens
09:00 - 17:00

Sentinel Rack (1500-3000 VA)

Sentinel Rack (SER) (1500-3000 VA)

Compactness and total protection for rack systems

The Sentinel Rack is a rack-mounted version of the popular Sentinel Pro range of online uninterruptible power supplies.
Advanced double conversion technology provides the highest levels of reliability and protection for critical servers, data processing IT systems, and telecoms networks. Available in 1500 VA and 3000 VA versions, both products sit at just 380mm deep, making them the ideal choice to upgrade power in server rooms housing 600mm deep legacy racks.
For applications requiring several hours’ autonomy, the SER 3000 ER is fitted with a 6A battery charger and additional battery packs for extra runtime. These plug and play UPS systems are designed to fit standard 19 inch cabinet racks and incorporate a Cold Start feature that enables them to power up even if there isn’t a mains supply. Choose from a wide range of operating modes (i.e. Online, Eco, Smart Active, Standby Off, Frequency Converter) to boost performance and improve energy efficiency.



Technical Specifications

Product Brochure

Main features:

  • Filtered, stabilised and reliable voltage: double conversion on-line technology (VFI compliant with IEC 62040-3) with filters for the suppression of atmospheric disturbances.
  • High overload capability (up to 150%)
  • Programmable Auto-restart when mains is restored
  • Battery start-up (Cold Start)
  • Power factor correction (UPS input power factor, close to 1)
  • Wide input voltage tolerance range (from 140 V to 276 V) without battery intervention.
  • Runtime extendable up to several hours
  • Fully configurable using UPS Tools configuration software
  • Highly reliable batteries (automatic and manually-activated battery test)
  • High level of UPS reliability (total microprocessor control)
  • Low impact on the mains (sinusoidal take up).


  • Multi-platform communication for all operating systems and network environments: PowerShield3 supervision and shutdown software for Windows operating systems 10, 8, 7, Hyper-V, 2016, 2012, and previous versions, Mac OS X, Linux, VMWare ESXi, Citrix XenServer and other Unix operating systems
  • UPS Tools configuration and customisation software supplied as standard
  • RS232 serial port and opto-isolated contacts
  • USB port
  • Slot for communications boards.

Minimum permitted Voltage

POWER 1500 VA/1350W 3000 VA/2700 W


Dual Input No Yes
Nominal Voltage 220-230-240 VAC
Voltage range without battery intervention 140 VAC < Vin < 276 VAC @50% load / 184 VAC < Vin < 276 VAC @ 100% load
Voltage Tolerance 230 VAC ±20%
Minimum permitted Voltage 300 VAC
Nominal Frequency 50/60 Hz  ± 5Hz
Frequency Range 50 Hz ± 5% / 60 Hz ± 5%
Power Factor > 0,99
Current distortion ≤7%


Voltage Tolerance 180 – 264 VAC
Frequency Tolerance from ±1.5Hz to ±5Hz configurable
Overload Times 125% for 5 seconds, 150% for 1 second


Voltage distortion with linear load / with non-linear load < 2% / < 4%
Frequency Selectable 50 Hz or 60 Hz or self-learning
Static variation ± 1%
Dynamic variation ≤ 5% σε 20 msec.
Waveform Sinusoidal
Current crest factor 3:1
Effivienvy ECO and Smart Active Modes  98%


Type VRLA AGM maintenance-free lead based
Recharge Time 2-4 hours


Net Weight (kg) 18 14 (without batteries)
Gross weight (kg) 19 15
Dimensions WxDxH (mm) 450 x 380 x 87 (2U)
Packge Dimensions WxDxH (mm) 540 x 490 x 190
Protection against overvoltage 300 joules
Protections Overcurrent – short circuit – overcoltage – undervoltage – temprature = excessive low batteryν
Communications USB / DB9 with RS232 and contacts / Slot for communications interface
Input plugs 1 x IEC 320 C14 1 x IEC 320 C20
Output Sockets 8 x IEC 320 C13 8 x IEC 320 C13 + 1 x IEC 320 C19
Standards Safety: EN 62040-1 and Directive 2014/35/EU; EMC: EN 620040-2 and Directives 2014/30/EU
Operating Temperature/strong> 0 °C / +40 °C
Relative Humidity < 95% non-condensing
Colour Black
Noise level at 1 m (ECO mode) < 40 dBA
Standard equipment provided Power cable, IEC-IEC cable, USB cable, safety manual, quick start guide









Download the pdf here