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Product comparison · 2 uninterruptible power supplies (upss)

CyberPower ST625U uninterruptible power supply (UPS) Standby (Offline) 0.625 kVA vs Vertiv Liebert PSI5-1500RT120 uninterruptible power supply (UPS) Line-Interactive 1.5 kVA

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  • 35specifications compared
  • 27differ
  • 8identical
  • 33known for one product only

Key differences

  • UPS topology
    • Standby (Offline)
    • Line-Interactive
  • Output power capacity
    • 0.625 kVA
    • 1.5 kVA
  • Output power
    • 360 W
    • 1350 W
  • Waveform
    • Pseudo sine
    • Pure sine
  • Input operation voltage (min)
    • 96 V
    • 75 V
  • Input operation voltage (max)
    • 140 V
    • 146 V
  • Input frequency
    • 47/63 Hz
    • 55/65 Hz
  • Output operation voltage (min)
    • 120 V
    • 100 V

Side by side

Differences highlightedShow differences only
68 specifications
A

CyberPower

ST625U uninterruptible power supply (UPS) Standby (Offline) 0.625 kVA

Model ST625U

View product
B

Vertiv

Liebert PSI5-1500RT120 uninterruptible power supply (UPS) Line-Interactive 1.5 kVA

Model PSI5-1500RT120

View product
Features11 differ
UPS topologyDiffersStandby (Offline)Line-Interactive
Output power capacityDiffers0.625 kVA1.5 kVA
Output powerDiffers360 W1350 W
WaveformDiffersPseudo sinePure sine
Input operation voltage (min)Differs96 V75 V
Input operation voltage (max)Differs140 V146 V
Input frequencyDiffers47/63 Hz55/65 Hz
Output operation voltage (min)Differs120 V100 V
Output operation voltage (max)Differs120 V125 V
Output frequencyDiffers50/60 Hz57/63 Hz
Automatic Voltage Regulation (AVR)Known for oneYes
Surge energy ratingDiffers890 J1372 J
Response timeKnown for one6 ms
Number of input phasesKnown for one1
Number of output phasesKnown for one1
EfficiencyKnown for one96%
Emergency Power Off (EPO)Known for oneYes
Noise levelKnown for one55 dB
Surge protectionYesYes
Transfer time (Line Mode to Battery Mode)Known for one8 ms
EMI/RFI noise filteringKnown for oneYes
Power protection featuresKnown for oneOverload
Audible alarm(s)Known for oneYes
Audible alarm modesKnown for oneAlarm when on battery, Fault, Low battery alarm, Overload alarm
Socket circuit breakerKnown for oneYes
Ports & interfaces4 differ
AC outlet typesNEMA 5-15RNEMA 5-15R
Power plugDiffersNEMA 5-15PNEMA 5-15
AC outlets quantityDiffers8 AC outlet(s)6 AC outlet(s)
USB portYesYes
USB 2.0 ports quantityDiffers21
USB port typeDiffersUSB Type-AUSB Type-B
Ethernet LAN (RJ-45) portsKnown for one2
Cabling technologyKnown for one10/100Base-T
Emergency Power Off (EPO) connectorKnown for oneYes
Battery3 differ
Battery technologySealed Lead Acid (VRLA)Sealed Lead Acid (VRLA)
Typical backup time at full loadDiffers2 min4 min
Typical backup time at half loadDiffers9 min12 min
Battery recharge timeDiffers8 h4 h
Battery capacityKnown for one5.5 Ah
Battery voltageKnown for one12 V
Number of batteries supportedKnown for one1
Design2 differ
Form factorDiffersCompactRackmount/Tower
Product colourBlackBlack
Rack capacityKnown for one2U
Cable lengthDiffers1.5 m3 m
Display typeKnown for oneLCD
LED indicatorsKnown for onePower
Operational conditions2 differ
Operating temperature (T-T)0 - 40 °C0 - 40 °C
Storage temperature (T-T)Differs-15 - 45 °C-15 - 50 °C
Operating relative humidity (H-H)Differs0 - 95%20 - 90%
Storage relative humidity (H-H)Known for one20 - 90%
Operating altitude0 - 3000 m0 - 3000 m
Non-operating altitudeKnown for one0 - 15000 m
Packaging contentidentical
Rack mount kitKnown for oneYes
ManualYesYes
Cables includedKnown for oneUSB cable
Safety regulation & standards1 differ
SafetyDiffersUL1778, cUL, FCC DOC B, CECUL 1778, c-UL-us
Certificatesidentical
CertificationKnown for oneFCC, UL 497 B, ISTA
Compliance certificatesKnown for oneRoHS
Weight & dimensions4 differ
WidthDiffers248 mm438 mm
DepthDiffers81 mm510 mm
HeightDiffers147 mm88 mm
WeightDiffers2.27 kg19.3 kg
Packaging dataidentical
Package widthKnown for one258 mm
Package depthKnown for one672 mm
Package heightKnown for one550 mm
Package weightKnown for one23.5 kg
Sustainabilityidentical
Sustainability certificatesKnown for oneENERGY STAR

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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