Fluke 345 Clampmeter, Max Current 1.4kA ac, 2kA dc CAT IV 600 V

  • RS stock no. 252-214
  • Mfr. Part No. Fluke 345
  • Manufacturer Fluke
Technical data sheets
Legislation and Compliance
Not Applicable
COO (Country of Origin): CN
Product Details

Fluke 345 Power Quality Clamp Meter

The Fluke 345 measures a wide range of electrical parameters for troubleshooting power disturbances in single- and three phase electrical loads. With a bright colour display to see waveforms and trends, a low-pass filter to remove high frequency noise, and a high EMC immunity design, the Fluke 345 is ideal for measurements on switching loads such as variable speed drives, electronic lighting and UPS systems.

Clamp-on measurement of ac current up to 1400A rms and dc current up to 2000A without breaking the circuit
Low pass filter ensures the clamp meter is accurate in noisy environments even with distorted waveforms present on electronic loads
Identify intermittent faults by logging any power quality parameter for minutes, or over a month, including harmonics
Direct measurement of dc ripple (%) for battery and dc systems
Analyse and log harmonics digitally or graphically
Inrush current measurement to capture and analyse nuisance tripping, from 3 to 300 seconds
Large backlit colour display of waveforms (scope function) and trends
Balanced 3-phase power measurement capability
Power Log software supplied to view graphs and generate reports on a PC
USB interface
Harmonic analysis: Analyse, display and log harmonics up to the 30th harmonic (40th harmonic for 15Hz to 22Hz)
Verify batteries: Direct measurement of dc ripple (%) for battery and dc systems
EN61010 safety rating: 600V CAT IV / 1000V CAT III rated for use at the service entrance

Supplied with

Test Leads, Power Log software on CD-ROM, USB lead, batteries(fitted), mains adaptor, carry case & instructions.

Fluke Power Quality Clamp Meter

The Fluke power quality clamp meter is the ideal meter for commissioning and troubleshooting modern electrical loads. With a bright colour display to analyse the harmonic spectrum, a low-pass filter to remove high-frequency noise, and a high EMC immunity design, the Fluke 345 is ideal for measurements on switching loads such as variable frequency drives, electronic lighting and UPS systems. Additionally, the Hall Effect measurement system makes the measurement of DC possible without the need to break the circuit, and the internal memory enables long-term logging for analysis of trends or intermittent problems. Clamp-on measurement of AC up to 1400A RMS and DC up to 2000A without breaking the circuit. This meter contains test leads, power log software on CD-ROM, USB lead, batteries (fitted), mains adaptor, carry case and instructions.

Features and Benefits

Voltage measurement is 825V AC/DC
Minimum, maximum, average and inrush recording to capture variations automatically
Logs any power quality parameter, including harmonics for minutes or for over a month to help identify intermittent faults
The low-pass filter to smooth out noisy loads and stabilize readings
Verifies batteries with direct measurement of DC ripple (%) for battery and DC systems
Analyses and logs harmonics digitally or graphically
Downloads logged data via USB with Power Log application software making it easy to view trends and screenshots, analyse and create reports
Powers the instrument without using the battery when performing extended logging sessions
Provides built-in three-phase power measurement capability for balanced loads
USB interface
Display HOLD
Operating temperature ranges between 0°C and 50°C


Set up and troubleshoot variable frequency drives and UPS systems
Harmonics measurement
Inrush capture
Load studies


IEC/EN 61326-1:1997 class B
IEC/EN 61326-1:1997
CAT IV 600V safety rating

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Between September 1, 2020 and December 15, 2020 customer who purchase a Fluke product (inc. Fluke Networks) have the opportunity to claim a free product through the Fluke website with the original proof of purchase, invoice, or receipt. The product can be claimed by visiting the Fluke website -
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There are six levels of free tools to claim. They are separated based on the value of the qualifying purchase, starting at as little as only €100. For each level there is a fixed range of products to claim, based on the value of the original purchase.

Attribute Value
Absolute Maximum AC Current Measurement 1.4kA ac
Absolute Maximum DC Current Measurement 2kA dc
Absolute Maximum AC Voltage Measurement 825V ac
Absolute Maximum DC Voltage Measurement 825V dc
Connectivity USB
Model Number 345
AC Current Measurement Resolution 10mA
DC Current Measurement Resolution 10mA
Best DC Current Accuracy ±(1.5% rdg + 5dgts)
Clamp Meter Type Power Clamp Meter
Best AC Current Accuracy ±(1.5% rdg + 5dgts)
Best AC Voltage Accuracy ±(1% rdg + 5dgts)
Best DC Voltage Accuracy ±(1% rdg + 5dgts)
Dimensions 300 x 98 x 52mm
Width 98mm
Length 300mm
Display Type LCD
Safety Category CAT IV 600 V
Battery Type AA
Safety Category Voltage 600V
Safety Category Level CAT IV
Weight 820g
Battery Life 10 (Backlight On) h, 12 (Backlight Off) h
AC Voltage Measurement Resolution 1mV
Height 52mm
Minimum Operating Temperature 0°C
True RMS Yes
Jaw Capacity Busbars 58mm
Maximum Conductor Size 58mm
Functions Measured AC Current, AC Voltage, DC Current, DC Voltage, Frequency, Harmonics, Kilowatt Hour, Power, Power Factor, VAR, Voltage
DC Voltage Measurement Resolution 1mV
Maximum Operating Temperature +50°C
Power Source Battery
Temporarily out of stock - back order for despatch when stock is available
Price (Excl VAT) Each
R 47,000.00
(exc. VAT)
R 54,050.00
(inc. VAT)
Per unit
1 +
R 47,000.00