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PA4400A Three Phase AC Power Analyzer with optional 4th channel

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PA4400A 3 Phase Power Analyzer from Lexcom

The PA4400A series offers single phase, two wattmeter and three phase power analysis, with full power meter and watt meter capability.  Three phase power analyzers / watt meters are a necessity when several ac power measurements need to be recorded during testing – from one set of input connections.  Three phase watt meters are important when accurate watts measurement is necessary for certification and traceability. In addition to power measurement (watts), energy, reactive power (VAr), apparent power (VA), voltage rms, current rms, power factor and harmonics, can all be viewed with ease. All Lexcom power meters / wattmeters simply connect between the ac supply and the load, various current transformer and shunt options allow measurement with any level of current amplitude. Typical three phase watt meter applications include appliance testing like generators, electric stoves, heating, air conditioning, pumps, fans, electronic lighting and motor controllers.  All our power meters are equipped with safety terminals (4mm/banana) along with optional “breakout” boxes and clamp probes for fast and safe measurement.

  • DC-500kHz Bandwidth
  • 1440Vpk + 125Apk direct measurements (DC coupled)
  • 4 Fully isolated and independently ranged input channels
  • Up to 10 readings per second
  • Torque/Speed input (option)
  • PWM Filter for motor drives
  • Flexible wiring configurations 3Ø4w+Torque, 3Ø4w+1Ø, 3Ø3w+3Ø3w etc.
  • Harmonics to the 80th
  • IEEE-488 and RS232 interfaces
  • Integrator function with WHRS, AHRS and elapsed time
  • 10 setup memories for storing individual configurations
  • Efficiency & energy measurements
  • 10 Chart recorder outputs (option)
  • Inrush current measurement
  • Printout graphics or lists

Download-PA4400A-Datasheet   Download-PA4400A-supplies-loads

Multiple Parameter Display
View results on all four channels plus neutral and Sum. Choose between individual channels or all results on one page. Scaling factors may be applied to give correct readouts when using VT and CT. One key access to most display functions.
PA4400A2 Waveforms + Chart Recorder Functions
View volts, amps and watts waveforms for each channel. Use datacapture to store and analyse transient events. A chart recorder function graphs a selected parameter over time.
Harmonic Analysis
Harmonic analyser allows user to view harmonic lists or bar graphs for all four channels. Amps and volts THD is calculated from the harmonic series

    Measurement Function


Measurement Bandwidth Range DC, 0.2Hz to 500kHz
Volts Display Resolution 4 3/4 digit
Measurement Range 700mVrms to 1000Vrms (1440Vpk)
(200mVrms with display blanking off)
Vpeak Ranges 1440, 720, 220, 110, 33.0, 16.0, 5.0, 2.5
Max input volts 1440Vpk Overload 3000Vrms for 1 second
Accuracy 0.1% Reading +0.1% Range +10mV
DC 0.5% Reading +0.5% Range +10mV
Common mode 90dB
Input impedance 1Mohm 12pF
Current Display Resolution 4 3/4 digit
Measurement Range 0.01Arms to 20Arms (125Apk)
Ext Shunt 1mVpk to 4Vpk
Apeak Ranges 125, 62.5, 22.0, 11.0, 3.50, 1.80, 0.6, 0.3
Max input amps 20Arms continuous 125Apk
Accuracy 0.1% Reading +0.1% range +2mA
DC 0.5% Reading +0.5% Range +10mA
Common mode 90dB
Input impedance 0.02Ohm
Power Accuracy 0.1% Reading +0.1% range +2mW
VA Accuracy 0.1% Reading +0.1% range +2mVA
VAR Accuracy 0.1% Reading +0.1% range +2mVAR

General Specifications

Interfaces Standard Printer (Centronics)
Optional IEEE-488, RS232, Chart Recorder x 10
Environment Operating Temperature 0°C to +50°C
Storage Temperature -40°C to +60°C
Humidity 10% to 90% RH non-condensing
Dielectric Strength Inputs to case 4kV AC 50/60Hz for 1 minute
AC line input to case 2kV AC 50/60Hz for 1 minute
Power AC line input voltage 90V to 264V
AC line input frequency 45Hz to 450Hz
AC line input fuse 20mm 1AT
Power consumption 25W/40VA
Mechanical Weight 9.0kg
Dimensions (W x H x D) 430mm x 144mm x 420mm

Options and description

PA4400A-3 Three Phase Power Analyser – 3 Channel
PA4400A-4 Three Phase Power Analyser – 4 Channel
PA4400A-3-B With Blank Front Panel
PA4400A-4-B With Blank Front Panel
Option 68 Interface Board (use with Option 68A, 68B, 68C)
Option 68A RS232 
Option 68B IEEE-488
Option 03 500A PA Series Current Transducer 100:1
Option 04 1000A PA Series Current Transducer 1000:1
Option 22 PA4400A Rack Mounting Kit
Option 25 HV 40kVpk 2000:1 Probe
Option 29 PA4400A-3 Test Lead Set
Option 29A PA4400A-4 Test Lead Set
Option 43 PA4400A-3 UKAS Certificate
Option 44 3000A Clamp Current Transformer
Option 46 PA Series 1mA to 500mA non inductive shunt
Option 49 1250A/125A:1A (1500A max) 0.2% CT
Option 50 PA4400A-4 Torque/RPM Input
Option 51 Hall Effect sensor 50A Current CT
Option 52 Hall Effect sensor 100A Current CT
Option 53 Hall Effect sensor 200A Current CT
Option 54 Hall Effect sensor 300A Current CT
Option 55 Hall Effect sensor 500A Current CT
Option 56 Hall Effect sensor 1000A Current CT
Option 57 Wiring/Housing for LEM’s (PSU not inc.)
Option 58A 1A PSU for Hall Effect Transducers (cased)
Option 63 AVLab 44 for PC



All products are CE marked and have IEC, EN or UL approvals.

Download-PA4400A-Datasheet   Download-PA4400A-supplies-loads