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Product comparison · 2 uninterruptible power supplies (upss)

FSP Eufo 1.1k vs FSP ST 850

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  • 38specifications compared
  • 16differ
  • 22identical
  • 28known for one product only

Key differences

  • Output power capacity
    • 1.1 kVA
    • 0.85 kVA
  • Output power
    • 990 W
    • 510 W
  • Input operation voltage (min)
    • 162 V
    • 81 V
  • Input operation voltage (max)
    • 290 V
    • 270 V
  • Output operation voltage (min)
    • 208 V
    • 110 V
  • Output voltage regulation
    • 1.5%
    • 5%
  • Noise level
    • 45 dB
    • 40 dB
  • AC outlet types
    • C13 coupler
    • Type F

Side by side

Differences highlightedShow differences only
66 specifications
A

FSP

Eufo 1.1kView product
B

FSP

ST 850View product
Features7 differ
UPS topologyLine-InteractiveLine-Interactive
Output power capacityDiffers1.1 kVA0.85 kVA
Output powerDiffers990 W510 W
WaveformSineSine
Input operation voltage (min)Differs162 V81 V
Input operation voltage (max)Differs290 V270 V
Input frequency50/60 Hz50/60 Hz
Output operation voltage (min)Differs208 V110 V
Output operation voltage (max)240 V240 V
Output frequency50/60 Hz50/60 Hz
Output voltage regulationDiffers1.5%5%
Automatic Voltage Regulation (AVR)Known for oneYes
Response timeKnown for one6 ms
Efficiency (ECO mode)Known for one97%
Efficiency (Battery mode)Known for one90%
Efficiency (Line Mode)Known for one95%
Power factorKnown for one0.99
Crest factorKnown for one3:1
Emergency Power Off (EPO)Known for oneYes
Total Harmonic Distortion (THD) (linear load)Known for one2%
Total Harmonic Distortion (THD) (non-linear load)Known for one5%
Noise levelDiffers45 dB40 dB
Audible alarm(s)YesYes
Audible alarm modesAlarm when on battery, Fault, Low battery alarm, Overload alarmAlarm when on battery, Fault, Low battery alarm, Overload alarm
Detachable power cordKnown for oneYes
Power source typeACAC
Power protection featuresKnown for oneBattery discharge, Overcharge, Overload
Ports & interfaces2 differ
AC outlet typesDiffersC13 couplerType F
Power plugKnown for oneC14 coupler
AC outlets quantityDiffers8 AC outlet(s)4 AC outlet(s)
USB portYesYes
USB 2.0 ports quantity11
USB port typeUSB Type-BUSB Type-B
Serial interfaceKnown for oneYes
Serial interface typeKnown for oneRS-232
RS-232 portsKnown for one1
Emergency Power Off (EPO) connectorKnown for oneYes
SmartSlotKnown for oneYes
Ethernet LAN (RJ-45) portsKnown for one2
Battery2 differ
Battery capacity9 Ah9 Ah
Battery voltage12 V12 V
Number of battery cellsDiffers21
Battery recharge timeDiffers4 h6.8 h
Battery recharge time(90%)Known for one4 h
Charging currentKnown for one1.5 A
Hot-swap batteryYesYes
Design1 differ
Form factorDiffersRackmount/TowerTower
Product colourBlackBlack
Rack capacityKnown for one2U
Cooling typeActiveActive
Built-in fanYesYes
Control typeButtonsButtons
Display typeLCDLCD
LED indicatorsKnown for oneYes
Operational conditionsidentical
Operating temperature (T-T)0 - 40 °C0 - 40 °C
Operating relative humidity (H-H)0 - 90%0 - 90%
Packaging contentidentical
Batteries includedYesYes
Rack mount kitKnown for oneYes
Cables includedKnown for oneInput power cable, USB cable
Weight & dimensions4 differ
WidthDiffers438 mm99 mm
DepthDiffers410 mm288 mm
HeightDiffers88 mm280 mm
WeightDiffers13.4 kg7.6 kg
Packaging dataidentical
Software CDKnown for oneYes
Other featuresidentical
Number of phasesKnown for one1
Packaging contentKnown for oneUPS, user manual, software CD, EU cable, USB cable, tower stands, mounting ears & screws

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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