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Product comparison · 2 uninterruptible power supplies (upss)

CyberPower Online S Series OLS2K2ERT2UH uninterruptible power supply (UPS) Double-conversion (Online) 2.2 kVA vs Dahua Technology DH-PFM3355-1000L uninterruptible power supply (UPS) Double-conversion (Online) 1 kVA

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  • 29specifications compared
  • 20differ
  • 9identical
  • 40known for one product only

Key differences

The CyberPower Online S Series OLS2K2ERT2UH uninterruptible power supply (UPS) Double-conversion (Online) 2.2 kVA has 1.2 kVA more output power capacity than the Dahua Technology DH-PFM3355-1000L uninterruptible power supply (UPS) Double-conversion (Online) 1 kVA (2.2 kVA vs 1 kVA). The CyberPower Online S Series OLS2K2ERT2UH uninterruptible power supply (UPS) Double-conversion (Online) 2.2 kVA has 1,300 W more output power than the Dahua Technology DH-PFM3355-1000L uninterruptible power supply (UPS) Double-conversion (Online) 1 kVA (2200 W vs 900 W). The CyberPower Online S Series OLS2K2ERT2UH uninterruptible power supply (UPS) Double-conversion (Online) 2.2 kVA has 20 V more input operation voltage (min) than the Dahua Technology DH-PFM3355-1000L uninterruptible power supply (UPS) Double-conversion (Online) 1 kVA (110 V vs 90 V). Output frequency: 50/60 Hz on the CyberPower Online S Series OLS2K2ERT2UH uninterruptible power supply (UPS) Double-conversion (Online) 2.2 kVA, 50 Hz on the Dahua Technology DH-PFM3355-1000L uninterruptible power supply (UPS) Double-conversion (Online) 1 kVA. Power protection features: Overload on the CyberPower Online S Series OLS2K2ERT2UH uninterruptible power supply (UPS) Double-conversion (Online) 2.2 kVA, Overload, Overcharge, Overdischarge on the Dahua Technology DH-PFM3355-1000L uninterruptible power supply (UPS) Double-conversion (Online) 1 kVA.

  • Output power capacity
    • 2.2 kVA
    • 1 kVA
  • Output power
    • 2200 W
    • 900 W
  • Input operation voltage (min)
    • 110 V
    • 90 V
  • Output operation voltage (max)
    • 240 V
    • 230 V
  • Output frequency
    • 50/60 Hz
    • 50 Hz
  • Maximum current
    • 10.39 A
    • 12 A
  • Input power factor
    • 0.99
    • 0.9
  • AC outlets quantity
    • 6 AC outlet(s)
    • 3 AC outlet(s)

Side by side

Differences highlightedShow differences only
69 specifications
A

CyberPower

Online S Series OLS2K2ERT2UH uninterruptible power supply (UPS) Double-conversion (Online) 2.2 kVA

Model OLS2K2ERT2UH

View product
B

Dahua Technology

DH-PFM3355-1000L uninterruptible power supply (UPS) Double-conversion (Online) 1 kVA

Model DH-PFM3355-1000L

View product
Features9 differ
UPS topologyDouble-conversion (Online)Double-conversion (Online)
Output power capacityDiffers2.2 kVA1 kVA
Output powerDiffers2200 W900 W
WaveformPure sinePure sine
Input operation voltage (min)Differs110 V90 V
Input operation voltage (max)300 V300 V
Input frequency50/60 Hz50/60 Hz
Output operation voltage (min)Known for one200 V
Output operation voltage (max)Differs240 V230 V
Output frequencyDiffers50/60 Hz50 Hz
Maximum currentDiffers10.39 A12 A
Surge energy ratingKnown for one1065 J
Heat dissipationKnown for one564 BTU/h
Number of input phasesKnown for one1
Efficiency (ECO mode)Known for one98%
Power factorKnown for one1
Input power factorDiffers0.990.9
ECO modeKnown for oneYes
EMI/RFI noise filteringKnown for oneYes
Surge protectionKnown for oneYes
Power protection featuresDiffersOverloadOverload, Overcharge, Overdischarge
Audible alarm(s)YesYes
Audible alarm modesDiffersAlarm when on battery, Low battery alarm, Overload alarm, Battery replacement, FaultAlarm when on battery, Overload alarm, Low battery alarm, Fault
Response timeKnown for one4 ms
Output power factorKnown for one0.9
Ports & interfaces1 differ
AC outlet typesKnown for oneC13 coupler
AC outlets quantityDiffers6 AC outlet(s)3 AC outlet(s)
USB portKnown for oneYes
Serial interfaceKnown for oneYes
Serial interface typeKnown for oneRS-232
RS-232 ports11
Emergency Power Off (EPO) connectorKnown for oneYes
USB 2.0 ports quantityKnown for one1
USB port typeKnown for oneUSB Type-B
Ethernet LAN (RJ-45) portsKnown for one1
Batteryidentical
Battery voltage72 V72 V
Typical backup time at full loadKnown for one4 min
Typical backup time at half loadKnown for one12 min
Battery recharge timeKnown for one4 h
Charging currentKnown for one8 A
Hot-swap batteryKnown for oneYes
Replacement battery cartridgeKnown for oneRBP0161
Battery technologyKnown for oneLead-Acid
Design3 differ
Form factorDiffersRackmount/TowerRackmount
Product colourDiffersBlackBlack, Grey
Housing materialDiffersMetalMetal, Plastic
Cable length1.5 m1.5 m
Control typeKnown for oneButtons
Display typeLCDLCD
Cooling typeKnown for oneActive
LED indicatorsKnown for oneYes
Operational conditions4 differ
Operating temperature (T-T)Differs0 - 50 °C0 - 40 °C
Storage temperature (T-T)Differs-20 - 50 °C-15 - 55 °C
Operating relative humidity (H-H)Differs20 - 90%0 - 90%
Storage relative humidity (H-H)Differs10 - 90%0 - 90%
Operating altitudeKnown for one0 - 1500 m
Non-operating altitudeKnown for one0 - 1500 m
Weight & dimensions3 differ
WidthDiffers540 mm482.6 mm
DepthDiffers730 mm429.2 mm
HeightDiffers230 mm88 mm
WeightKnown for one7.4 kg
Packaging contentidentical
Rack mount kitKnown for oneYes
Cables includedKnown for oneRS-232, Input power cable
ManualKnown for oneYes
Certificatesidentical
CertificationKnown for oneCE LVD: EN IEC 62040-1: 2019+A11: 2021; CE EMC: EN IEC 62040-2: 2018; EN 62040-2: 2006; EN IEC 61000-3-2: 2019+A2: 2024; EN 61000-3-3: 2013+A2: 2021
Packaging dataidentical
Package widthKnown for one570 mm
Package depthKnown for one540 mm
Package heightKnown for one185 mm
Package weightKnown for one10.2 kg

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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