Product comparison · 2 uninterruptible power supplies (upss)

Ewent EW3940 uninterruptible power supply (UPS) Line-Interactive 0.65 kVA vs Ewent EW3943 uninterruptible power supply (UPS) 1.2 kVA

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  • 13specifications compared
  • 8differ
  • 5identical
  • 18known for one product only

Key differences

  • Output power capacity
    • EW3940 uninterruptible power supply (UPS) Line-Interactive 0.65 kVA:0.65 kVA
    • EW3943 uninterruptible power supply (UPS) 1.2 kVA:1.2 kVA
  • Output power
    • EW3940 uninterruptible power supply (UPS) Line-Interactive 0.65 kVA:390 W
    • EW3943 uninterruptible power supply (UPS) 1.2 kVA:600 W
  • LED indicators
    • EW3940 uninterruptible power supply (UPS) Line-Interactive 0.65 kVA:Status
    • EW3943 uninterruptible power supply (UPS) 1.2 kVA:Yes
  • Width
    • EW3940 uninterruptible power supply (UPS) Line-Interactive 0.65 kVA:185 mm
    • EW3943 uninterruptible power supply (UPS) 1.2 kVA:125 mm
  • Depth
    • EW3940 uninterruptible power supply (UPS) Line-Interactive 0.65 kVA:275 mm
    • EW3943 uninterruptible power supply (UPS) 1.2 kVA:400 mm
  • Height
    • EW3940 uninterruptible power supply (UPS) Line-Interactive 0.65 kVA:95 mm
    • EW3943 uninterruptible power supply (UPS) 1.2 kVA:220 mm
  • Weight
    • EW3940 uninterruptible power supply (UPS) Line-Interactive 0.65 kVA:4.5 kg
    • EW3943 uninterruptible power supply (UPS) 1.2 kVA:9.7 kg

Side by side

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Comparison of EW3940, EW3943
31 specifications
Features3 differ
Output power capacityDiffers0.65 kVA1.2 kVA
Output powerDiffers390 W600 W
WaveformKnown for oneUnknown — not stated by the sourceSine
Input operation voltage (min)Known for oneUnknown — not stated by the source110 V
Input operation voltage (max)Known for oneUnknown — not stated by the source240 V
Input frequencyKnown for oneUnknown — not stated by the source50/60 Hz
Output operation voltage (min)Known for oneUnknown — not stated by the source110 V
Output operation voltage (max)Known for oneUnknown — not stated by the source240 V
Automatic Voltage Regulation (AVR)YesYes
EfficiencyKnown for oneUnknown — not stated by the source80%
Power protection featuresDiffersBattery discharge, Overcharge, Short circuitOver voltage, Short circuit, Under voltage
Audible alarm(s)YesYes
UPS topologyKnown for oneLine-InteractiveUnknown — not stated by the source
Ports & interfacesidentical
AC outlet typesKnown for oneUnknown — not stated by the sourceC13 coupler
AC outlets quantity4 AC outlet(s)4 AC outlet(s)
Batteryidentical
Battery technologyKnown for oneUnknown — not stated by the sourceSealed Lead Acid (VRLA)
Battery capacity7 Ah7 Ah
Number of batteries supportedKnown for oneUnknown — not stated by the source2
Battery voltageKnown for one12 VUnknown — not stated by the source
Typical backup time at full loadKnown for one20 minUnknown — not stated by the source
Design1 differ
Form factorKnown for oneUnknown — not stated by the sourceTower
Product colourBlackBlack
LED indicatorsDiffersStatusYes
Operational conditionsidentical
Operating temperature (T-T)Known for oneUnknown — not stated by the source0 - 40 °C
Operating relative humidity (H-H)Known for oneUnknown — not stated by the source10 - 90%
Weight & dimensions4 differ
WidthDiffers185 mm125 mm
DepthDiffers275 mm400 mm
HeightDiffers95 mm220 mm
WeightDiffers4.5 kg9.7 kg
Other featuresidentical
Nominal input voltageKnown for oneUnknown — not stated by the source230 V
Nominal output voltageKnown for oneUnknown — not stated by the source230 V

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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