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Chauvin Arnoux CA6418

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The CA6418 earth / ground clamp can be used for quick testing of earth loops, whatever their type. The CA6418 features an oblong head instead of the conventional round one which allows it to be able to test on all types of earth cables, bars and straps. It also allows the product to be used at an angle when clamping around earth spikes in restricted spaces. The clamping capacity allows measurements on 30 mm x 40 mm and 20 mm x 55 mm rectangular bars and cables 32 mm in diameter.

The CA6418 is supplied with a carry case, 4 x 1.5 V batteries, wrist strap, CD-Rom containing the user manual, quick start-up guide, multi-language safety datasheet and manufacturers verification certificate. 

Product Features

  • Calibration options
  • Document downloads

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The CA6418 clamp simultaneously displays the earth-loop resistance and the leakage current. Due to ergonomic innovations such as the OLED display providing visibility over an angle of 180 degrees, in all lighting conditions, it is particularly easy to use. The automatic "pre-HOLD" function when the clamp is opened and the automatic calibration of the jaw gap at power-up ensure optimized processing of the measurements provided by the CA6418 clamp.

Th main features are summarised below, for full details please see the data sheet.

  • Loop resistance measurement from 0.01 to 1,200 Ω
  • Current measurement from 0.5 mA to 20 A
  • Alarms available in Ω and A
  • Time / date-stamped storage of 300 measurements
  • Automatic hold of the display when the clamp is opened
  • Automatic calibration of the jaw gap
  • Recalibration possible without returning to factory


For full technical details, please see the data sheet.

Display      OLED 152 segments – Active area 48 mm x 39 mm

Storage      300 time / date-stamped measurements

Power supply      4 x 1.5 V LR6 AA alkaline batteries or 4 x NiMH batteries

Battery life      2400 x 30 s measurements

Calibration      Automatic at start-up

IEC 61010      100 V CAT IV , 150 V CAT III

Ingress protection      IP 40

Dimensions      300 mm x 106 mm x 56 mm

Weight      1.2 kg approx. including batteries



Chauvin Arnoux CA6418 earth ground clamp data sheet

  • Technical Document
  • PDF file
  • 1 MB

Chauvin Arnoux CA6418 earth ground clamp user manual

  • Technical Document
  • PDF file
  • 4 MB
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