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Chauvin Arnoux F405 Clamp Meter

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The Chauvin Arnoux F405 Clamp Meter is the ideal tool for electricians, they are simple to use and offer all the necessary functions in a single, compact solution. Suited to medium and high-power work, the F405 provides maximum safety whatever the measurement condition and type of installation.

Users can be sure of working in total safety and in compliance with the applicable standards with the 1000 V Cat IV safety rating. The instruments’ IP54 protection safeguards them against dust, in particular, thus guaranteeing that safety is maintained over time.

The clamp benefits from a fast 12-bit TRMS digital acquisition system offering high measurement accuracy. Thanks to their large bandwidth and high crest factor, these clamps provide accurate measurements whatever the type of signal. The F405 has been designed ergonomically for one-handed use, even when wearing protective gloves and the ‘1 key, 1 function’ concept makes it even simpler to use.

The innovative TrueInRush function makes it easy to analyse both the inrush of a single motor and the inrush of a set of machines in operation. The clamp automatically determines the type of signal and the level of current in the installation and then adapts the algorithm and measurement to capture the expected current.


  • Current: 2000 A AC/ 3000
  • Voltage: 1000 V AC/DC
  • Clamping diameter: 60mm
  • Large, 10,000-count display
  • Automatic AC/DC detection
  • Min, Max, Peak
  • Relative and differential measurements
  • Power Values
  • THD & Harmonics
  • TRMS version of Min and Max
  • Peak + and Peak –
  • Phase Rotation