Fluke | 434-II

Single & three-phase energimeter, 4 U/I inputs, RMS AC+DC, 6kA max., S class

Reference : FLU434-II
Serie : 43x series II
Purchase Order Reference : FLUKE-434-II (4116638)
Brand : Fluke
Energimètre monophasé et triphasé.
Conformité IEC 61000-4-30: Classe S.
4 entrées tension et courant (mesure 3 phases + neutre).
1000V AC+DC.
6000A AC+DC (avec pinces iflex i430).
Pour chaque défaut, évalue le surcoût du énergétique et économique.
Capture les transitoires (activation gratuite après achat).
Autonomie: 7 heures.
Mémoire sur Carte SD 8Go (fournie).
Fournis avec 4 pinces de courant AC flexibles i430-flex (6kA AC).
Autres configurations: nous consulter.
Expédié sous 2 semaines
Quick quote for this product
Quick quote for this product

Fluke 434 Series II Energy Analyzer

Calculate energy loss in your local currency

The Fluke 434 II Energy Analyzer is the ideal tool for energy logging. Utilizing the new Energy Loss Calculator function. the 434 II measures the fiscal cost of energy wasted due to poor power quality. This energy monetization capability allows you to identify the most energy-wasteful areas of your facility so you can determine potential energy saving solutions. Add basic power quality measurements to the package and you’re got yourself one powerful troubleshooting tool.



  • Energy monetization – calculate the fiscal cost of energy waste due to poor power quality
  • Energy assessment – quantify the before and after installation improvements in energy consumption to justify energy saving devices
  • Frontline troubleshooting – quickly diagnose problems on-screen to get your operation back online
  • Predictive maintenance – detect and prevent power quality issues before they cause downtime
  • Long-term analysis – uncover hard-to-find or intermittent issues
  • Load studies – verify electrical system capacity before adding loads



  • Energy loss calculator: Classic active and reactive power measurements. unbalance and harmonic power. are quantified to pinpoint the fiscal costs of energy losses.
  • Troubleshoot real-time: Analyze the trends using the cursors and zoom tools.
  • Highest safety rating in the industry: 600 V CAT IV/1000 V CAT III rated for use at the service entrance.
  • Measure all three phases and neutral: With included four flexible current probes with enhanced thin flex design to fit into the tightest places.
  • Automatic Trending: Every measurement is always automatically recorded. without any set-up.
  • System-Monitor: Ten power quality parameters on one screen according to EN50160 power quality standard.
  • Logger function: Configure for any test condition with memory for up to 600 parameters at user defined intervals.
  • View graphs and generate reports: With included analysis software.
  • Battery life: Seven hours operating time per charge on Li-ion battery pack.

Power inverter efficiency
Power inverters take DC current and transform it into AC current. or vice versa. Solar generation systems usually include an inverter that takes the DC energy from the solar cells and converts it to useful AC power. Inverters can lose performance over time and need to be checked. By comparing the input power with the output power you can determine the system efficiency. The 430 series II can measure the efficiency of such inverters by simultaneously measuring the DC and AC power of a system to determine how much power is lost in the conversion process.


Unified Power Measurement
Fluke’s patented Unified Power Measurement system (UPM) provides the most comprehensive view of power available. measure:

  • Parameters of Classical Power (Steinmetz 1897) and IEEE 1459-2000 Power
  • Detailed Loss Analysis
  • Unbalance Analysis

These UPM calculations are used to quantify the fiscal cost of energy loss caused by power quality issues. The calculations are computed. along with other facility-specific information. by an Energy Loss Calculator that ultimately determines how much money a facility loses due to wasted energy.


AutoTrend - Quickly see the trend 
Unique AutoTrend gives you fast insight into changes over time. Every displayed reading is automatically and continuously recorded without having to set up threshold levels or having to manually start the process. You can quickly view trends in voltage. current. frequency. power. harmonics or flicker on all three phases plus neutral.

SystemMonitor - Check performance against EN50160 with ease
With a single push of a button. the unique System-Monitor gives you an overview of power system performance. and checks the compliance of incoming power to EN50160 limits or to your own custom specifications. The overview is shown on a single screen. with color-coded bars clearly indicating which parameters fall outside the limits.




Product specifications

  Model Measurement range Resolution Accuracy
Vrms (ac+dc) 434-II1 V to 1000 V phase to neutral0.1 V± 0.5% of nominal voltage**** 
Vpk  1 Vpk to 1400 Vpk1 V5% of nominal voltage
Voltage Crest Factor (CF)  1.0 > 2.80.01± 5 %
Vrms½ 434-II1 V to 1000 V phase to neutral0.1 V± 1% of nominal voltage 
Vfund 434-II1 V to 1000 V phase to neutral0.1 V± 0.5% of nominal voltage
Amps (accuracy excluding clamp accuracy)
Amps (ac +dc) i430-Flex 1x 5 A to 6000 A1 A± 0.5% ± 5 counts
i430-Flex 10x0.5 A to 600 A0.1 A± 0.5% ± 5 counts
1mV/A 1x5 A to 2000 A1A± 0.5% ± 5 counts
1mV/A 10x0.5 A A to 200 A (ac only)0.1 A± 0.5% ± 5 counts
Apk i430-Flex 8400 Apk 1 Arms± 5 %
1mV/A5500 Apk1 Arms± 5 %
A Crest Factor (CF)  1 to 100.01± 5 %
Amps½ i430-Flex 1x 5 A to 6000 A 1 A ± 1% ± 10 counts 
i430-Flex 10x0.5 A to 600 A0.1 A ± 1% ± 10 counts
1mV/A 1x  5 A to 2000 A 1A ± 1% ± 10 counts
1mV/A 10x0.5 A A to 200 A (ac only)0.1 A± 1% ± 10 counts
Afund i430-Flex 1x 5 A to 6000 A1 A± 0.5% ± 5 counts 
i430-Flex 10x 0.5 A to 600 A0.1 A± 0.5% ± 5 counts
1mV/A 1x 5 A to 2000 A1A± 0.5% ± 5 counts
1mV/A 10x 0.5 A A to 200 A (ac only)0.1 A± 0.5% ± 5 counts
Hz Fluke 434 @ 50 Hz nominal 

42.50 Hz to 57.50 Hz

0.01 Hz± 0.01 Hz
Fluke 434 @ 60 Hz nominal51.00 Hz to 69.00 Hz0.01 Hz± 0.01 Hz
Watts (VA. var) i430-Flex max 6000 MW0.1 W to 1 MW± 1% ± 10 counts
1 mV/Amax 2000 MW0.1 W to 1 MW± 1% ± 10 counts
Power factor (Cos j/DPF)  0 to 10.001± 0.1% @ nominal load conditions
kWh (kVAh. kvarh) i430-Flex 10xDepends on clamp scaling and V nominal± 1% ± 10 counts
Energy loss i430-Flex 10xDepends on clamp scaling and V nominal± 1% ± 10 counts Excluding line resistance accuracy
Harmonic order (n)  DC. 1 to 50 Grouping: Harmonic groups according to IEC 61000-4-7
Inter-harmonic order (n)  OFF. 1 to 50 Grouping: Harmonic and Interharmonic subgroups according to IEC 61000-4-7
Volts %f0.0 % to 100 %0.1 %± 0.1% ± n x 0.1 %
%r0.0 % to 100 %0.1 %± 0.1% ± n x 0.4 %
Absolute0.0 to 1000 V0.1 V± 5% *
THD0.0 % to 100 %0.1 %± 2.5 %
Amps %f0.0 % to 100 %0.1 %± 0.1% ± n x 0.1%
%r0.0 % to 100 %0.1 %± 0.1% ± n x 0.4 %
Absolute0.0 to 600 A0.1 A± 5% ± 5 counts
THD0.0 % to 100 %0.1 %± 2.5 %
Watts %f or %r 0.0 % to 100 %0.1 %± n x 2%
AbsoluteDepends on clamp scaling and V nominal ± 5% ± n x 2 % ± 10 counts
THD0.0 % to 100 %  0.1 %± 5 %
Phase Angle  -360° to +0°± n x 1°
Plt. Pst. Pst(1min) Pinst 0.00 to 20.000.01± 5 %
Volts%0.0 % to 20.0 %0.1 %± 0.1 %
Amps%0.0 % to 20.0 %0.1%± 1 %
Mains signaling
Threshold levels Threshold. limits and signaling duration is programable for two signaling frequencies
Signaling frequency 60 Hz to 3000 Hz0.1 Hz 
Relative V% 0 % to 100 %0.10 %± 0.4 %
Absolute V3s (3 second avg.) 0.0 V to 1000 V0.1 V± 5 % of nominal voltage

General specifications

CaseDesign Rugged. shock proof with integrated protective holster Drip and dust proof IP51 according to IEC60529 when used in tilt stand position Shock and vibration Shock 30 g. vibration: 3 g sinusoid. random 0.03 g 2 /Hz according to MIL-PRF-28800F Class 2
DisplayBrightness: 200 cd/m 2 typ. using power adapter. 90 cd/m 2 typical using battery power Size: 127 mm x 88 mm (153 mm/6.0 in diagonal) LCD Resolution: 320 x 240 pixels Contrast and brightness: user-adjustable. temperature compensated
Memory8GB SD card (SDHC compliant. FAT32 formatted) standard. upto 32GB optionally Screen save and multiple data memories for storing data including recordings (dependent on memory size)
Real-time clockTime and date stamp for Trend mode. Transient display. System Monitor and event capture


Operating temperature0 °C ~ +40 °C; +40 °C ~ +50 °C excl. battery
Storage temperature-20 °C ~ +60 °C
Humidity +10 °C ~ +30 °C: 95% RH non-condensing
+30 °C ~ +40 °C: 75% RH non-condensing
+40 °C ~ +50 °C: 45% RH non-condensing
Maximum operating altitudeUp to 2.000 m (6666 ft) for CAT IV 600 V. CAT III 1000 V
Up to 3.000 m (10.000 ft) for CAT III 600 V. CAT II 1000 V
Maximum storage altitude 12 km (40.000 ft)
Electro-Magnetic-Compatibility (EMC)EN 61326 (2005-12) for emission and immunity
Interfacesmini-USB-B. Isolated USB port for PC connectivity SD card slot accessible behind instrument battery
WarrantyThree years (parts and labor) on main instrument. one year on accessories

* ± 5 % if ≥ 1 % of nominal voltage ± 0.05 % of nominal voltage if < 1% of nominal voltage
** 50Hz/60Hz nominal frequency according to IEC 61000-4-30
*** 400Hz measurements are not supported for Flicker. Mains Signaling and Monitor Mode.
****for nominal voltage 50 V to 500 V





Product Details
41-Standard Manufacturer Warranty 3 YEARS
759-type of instrument Hand-held (with recording)
760-Instrument class (IEC 61000-4-30) S class
214-Max effective power (W) 6 MW
624-Current inputs 4
84-Nature of the network Single-phase | Three-phase | Balanced three-phase
85-Power/energy type Active power (W) | Reactive power (VAR) | Apparent power (VA) | Active energy (Wh) | Reactive energy (VARh) | Apparent energy (VAh)
87-AC/DC Max voltage (V) 1kV AC/DC
88-AC/DC Max current (A) 6 kA AC (With i430-flex clamps)
86-Measurement functions Harmonics, THD | Flicker | Unbalance | Dips/swells of voltage | Transcient capture | Frequency | Inrush | Voltage | Current | Power Factor (Cos Phi)
25-Autonomy 7 hour
119-Safety Level CAT I | CAT II | CAT III | CAT IV
120-Safety Overvoltage CAT III 1000V / CAT IV 600V
36-Additional Characteristics S class compliance
132-Package includes 4 sondes de courant flexibles 6kA, adaptateur seceur, jeu de cordons de mesure & pinces crocodiles, sacoche de transport, logiciel PC, câble USB, manuel d'utilisation
35-Dimension (HxWxD) (mm) 265x190x70 mm
13-Net Weight 2 kg
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