Product comparison · 2 uninterruptible power supplies (upss)

Dahua Technology DH-PFM3355-2000L uninterruptible power supply (UPS) Double-conversion (Online) 2 kVA vs Vertiv Liebert S600D

Add a product
  • 25specifications compared
  • 18differ
  • 7identical
  • 42known for one product only

Key differences

The Vertiv Liebert S600D has 18 kVA more output power capacity than the Dahua Technology DH-PFM3355-2000L uninterruptible power supply (UPS) Double-conversion (Online) 2 kVA (20 kVA vs 2 kVA). The Vertiv Liebert S600D has 18,000 W more output power than the Dahua Technology DH-PFM3355-2000L uninterruptible power supply (UPS) Double-conversion (Online) 2 kVA (20000 W vs 2000 W). The Vertiv Liebert S600D has 290 V more input operation voltage (min) than the Dahua Technology DH-PFM3355-2000L uninterruptible power supply (UPS) Double-conversion (Online) 2 kVA (380 V vs 90 V). Output frequency: 50 Hz on the Dahua Technology DH-PFM3355-2000L uninterruptible power supply (UPS) Double-conversion (Online) 2 kVA, 40/70 Hz on the Vertiv Liebert S600D. Battery technology: Lead-Acid on the Dahua Technology DH-PFM3355-2000L uninterruptible power supply (UPS) Double-conversion (Online) 2 kVA, Sealed Lead Acid (VRLA) on the Vertiv Liebert S600D.

  • Output power capacity
    • DH-PFM3355-2000L uninterruptible power supply (UPS) Double-conversion (Online) 2 kVA:2 kVA
    • Liebert S600D:20 kVA
  • Output power
    • DH-PFM3355-2000L uninterruptible power supply (UPS) Double-conversion (Online) 2 kVA:2000 W
    • Liebert S600D:20000 W
  • Input operation voltage (min)
    • DH-PFM3355-2000L uninterruptible power supply (UPS) Double-conversion (Online) 2 kVA:90 V
    • Liebert S600D:380 V
  • Input operation voltage (max)
    • DH-PFM3355-2000L uninterruptible power supply (UPS) Double-conversion (Online) 2 kVA:300 V
    • Liebert S600D:415 V
  • Output operation voltage (max)
    • DH-PFM3355-2000L uninterruptible power supply (UPS) Double-conversion (Online) 2 kVA:230 V
    • Liebert S600D:240 V
  • Output frequency
    • DH-PFM3355-2000L uninterruptible power supply (UPS) Double-conversion (Online) 2 kVA:50 Hz
    • Liebert S600D:40/70 Hz
  • Input power factor
    • DH-PFM3355-2000L uninterruptible power supply (UPS) Double-conversion (Online) 2 kVA:0.9
    • Liebert S600D:0.99
  • Battery technology
    • DH-PFM3355-2000L uninterruptible power supply (UPS) Double-conversion (Online) 2 kVA:Lead-Acid
    • Liebert S600D:Sealed Lead Acid (VRLA)

Side by side

Differences highlightedShow differences only (on)
Comparison of DH-PFM3355-2000L, Liebert S600D
67 specifications
Features7 differ
Output power capacityDiffers2 kVA20 kVA
Output powerDiffers2000 W20000 W
Input operation voltage (min)Differs90 V380 V
Input operation voltage (max)Differs300 V415 V
Output operation voltage (max)Differs230 V240 V
Output frequencyDiffers50 Hz40/70 Hz
Maximum currentKnown for one12 AUnknown — not stated by the source
Response timeKnown for one4 msUnknown — not stated by the source
Input power factorDiffers0.90.99
Power protection featuresKnown for oneOverload, Overcharge, OverdischargeUnknown — not stated by the source
Audible alarm(s)Known for oneYesUnknown — not stated by the source
Audible alarm modesKnown for oneAlarm when on battery, Overload alarm, Low battery alarm, FaultUnknown — not stated by the source
Output operation voltage (min)Known for oneUnknown — not stated by the source220 V
Output frequency regulationKnown for oneUnknown — not stated by the source0.1 Hz
Automatic Voltage Regulation (AVR)Known for oneUnknown — not stated by the sourceYes
Number of input phasesKnown for oneUnknown — not stated by the source3
Number of output phasesKnown for oneUnknown — not stated by the source1
EfficiencyKnown for oneUnknown — not stated by the source91%
Efficiency (On-line mode)Known for oneUnknown — not stated by the source91%
Efficiency (ECO mode)Known for oneUnknown — not stated by the source94%
Power factorKnown for oneUnknown — not stated by the source0.9
Crest factorKnown for oneUnknown — not stated by the source3:1
ECO modeKnown for oneUnknown — not stated by the sourceYes
Emergency Power Off (EPO)Known for oneUnknown — not stated by the sourceYes
Output voltage Total Harmonic Distortion (THD)Known for oneUnknown — not stated by the source2%
Noise levelKnown for oneUnknown — not stated by the source65 dB
Ports & interfacesidentical
AC outlets quantityKnown for one3 AC outlet(s)Unknown — not stated by the source
USB 2.0 ports quantityKnown for one1Unknown — not stated by the source
USB port typeKnown for oneUSB Type-BUnknown — not stated by the source
RS-232 portsKnown for one1Unknown — not stated by the source
Ethernet LAN (RJ-45) portsKnown for one1Unknown — not stated by the source
Battery1 differ
Battery technologyDiffersLead-AcidSealed Lead Acid (VRLA)
Battery voltageKnown for one72 VUnknown — not stated by the source
Charging currentKnown for oneUnknown — not stated by the source13 A
Design2 differ
Form factorDiffersRackmountRackmount/Tower
Product colourDiffersBlack, GreyBlack
Housing materialKnown for oneMetal, PlasticUnknown — not stated by the source
Cable lengthKnown for one1.5 mUnknown — not stated by the source
LED indicatorsKnown for oneYesUnknown — not stated by the source
BacklightKnown for oneUnknown — not stated by the sourceYes
Backlight colourKnown for oneUnknown — not stated by the sourceBlue
International Protection (IP) codeKnown for oneUnknown — not stated by the sourceIP20
Operational conditions4 differ
Operating temperature (T-T)Differs0 - 40 °C0 - 50 °C
Storage temperature (T-T)Differs-15 - 55 °C-40 - 70 °C
Operating relative humidity (H-H)Differs0 - 90%0 - 95%
Storage relative humidity (H-H)Differs0 - 90%0 - 95%
Operating altitudeKnown for oneUnknown — not stated by the source0 - 3000 m
Non-operating altitudeKnown for oneUnknown — not stated by the source0 - 3000 m
Packaging contentidentical
Cables includedKnown for oneRS-232, Input power cableUnknown — not stated by the source
ManualKnown for oneYesUnknown — not stated by the source
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: 2021Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers482.6 mm335 mm
DepthDiffers429.2 mm650 mm
HeightDiffers88 mm1300 mm
WeightDiffers8.1 kg175 kg
Packaging dataidentical
Package widthKnown for one570 mmUnknown — not stated by the source
Package depthKnown for one540 mmUnknown — not stated by the source
Package heightKnown for one185 mmUnknown — not stated by the source
Package weightKnown for one10.8 kgUnknown — not stated by the source
Technical detailsidentical
Dispose of contents/container to (P501)Known for oneUnknown — not stated by the sourceAccording to local regulations

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.

More uninterruptible power supplies (upss) comparisons

All uninterruptible power supplies (upss) comparisons