Extech PQ3350-3
3-Phase Power and Harmonics Analyzer
with 3000A 18" flexible current clamp probes

  • Datalogging of single and 3-phase/3-wire or 3-phase/4-wire systems (up to 52,428 single phase readings or 17,476 3-phase readings)
  • Flexible clamp probes can be used for wrapping around bus bars and wire bundles
  • Large backlighting LCD displays up to 35 parameters in one screen
  • Clamp-on True RMS power measurements with on-screen Harmonics display
  • Simultaneous display of Harmonics and Waveform
  • Display of Waveform with Peak Values (1024 samples/period)
  • Analysis of Total Harmonic Distortion (THD-F)
  • Maximum Demand (MDkW, MW, kVA, MVA) with programmable period
  • Adjustable CT ratio (1 to 600) and VT ratio (1 to 3000)
  • Graphic Phase diagram with 3-Phase system parameters
  • 3-phase Voltage or Current Unbalanced Ratio (VUR, VIR) and Unbalanced Factor (d0%, d2%)
  • Calculated Unbalanced Current through Neutral Line (In)
  • Capture 28 Transient events (including Dip, Swell and Outage) with programmable threshold (%)
  • Optically isolated USB interface with software to download Waveforms, Power Parameters and Harmonics
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Extech PQ3350-3 Shown

Product Information
Datasheet 517 KB PDF
Manual 1.1 MB PDF
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The Extech PQ3350-3 3-Phase Power and Harmonics Analyzers includes datalogging of single and 3-phase/3-wire or 3-phase/4-wire systems plus datalogs to 52,428 single phase readings or 17,476 3-phase readings

Specification PQ3350-3
Function Range Basic Accuracy
ACV (True rms) 600V ±(0.5%rdg+5d)
AC Current 3000A ±(0.5%rdg+5d)
Active Power (kW) 9.999MW ±(1%rdg+8d)
Apparent Power (kVA) 9999kVA VA=Vrms x Arms
Reactive Power (kVAR) 9999kVAR VAR= sqr (VA2-W2)
Power Factor 0.0 to +1.00 ±(1.5%°rdg±8d)
Frequency 45-65Hz 0.1Hz
Phase -180.0°~ 0°~ +180.0° ±1°
Harmonics 1 to 99 ±2%
Crest Factor 1.00 to 99.99 ±(5%+30d)
Peak AC Voltage accuracy ±(5%rdg+30d)
Peak AC Current accuracy ±(5%rdg+30d)
Active Power Energy (kWh) 0mWh to 999,999kWh
Reactive Power Energy (kVARh) 0.0kVARh to 1000MWh
Datalogging 52428 records (single phase)/17476 records (3 phase)
Dimensions/Weight 10.1 x 6.1 x 2.3" (257 x 155 x 57mm)/ 2.5 lbs (1160g)
Ordering Information
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Included Accessories
  • 3 - 12" flexible current clamps
  • 4 - 4 volt. leads with alligator clips, plunger clips
  • 8 - AA batteries
  • 1 - Universal AC adaptor
  • 1 - Software
  • 1 - USB interface cable
  • 1 - Carrying Case
  • 1 - Manual
Optional Accessories
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*NOTE: Items ordered with optional NIST calibration will require
approximately 10 days to complete the certification.