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Yellow Fluke i30 clamp current probe with 19 mm jaw and banana plugs

Fluke

Fluke i30 AC/DC Clamp Current Probe 30mA-20A

SKU CH-394N-DBQ2X

AC/DC current probe measures 30 mA to 20 A AC and 30 mA to 30 A DC with 100 mV/A output and ±1 % accuracy

  • TypeElectronic
  • Measures AC from 30 mA to 20 A with 20 kHz bandwidth
  • Measures DC from 30 mA to 30 A for low-current circuits
  • 7 in (19 mm) jaw fits conductors up to 3/4 in
  • 100 mV/A output connects via banana plugs to DMMs
  • CAT III 300 V safety rating with ±1 % accuracy

Target users

The Fluke i30 is an AC/DC clamp current probe built for electricians and technicians who need to measure current without breaking a circuit. It connects to a digital multimeter via banana plugs and covers a range from 30 mA up to 20 A AC or 30 A DC.

Build and connections

The probe accepts conductors up to 0.7 in or 19 mm in its jaws, making it suitable for standard cables and small bus bars. A 100 mV per amp output feeds the meter directly, and the CAT III 300 V safety rating covers typical distribution panels and fixed wiring.

Thermals noise and power

The clamp operates passively, drawing no power of its own and producing no audible noise during measurement. Accuracy is specified at ±1 % of reading ±2 mA across a 20 kHz AC bandwidth, so the accessory adds negligible thermal load to the multimeter in normal use.

Highlights

  • Measures AC from 30 mA to 20 A with 20 kHz bandwidth
  • Measures DC from 30 mA to 30 A for low-current circuits
  • 7 in (19 mm) jaw fits conductors up to 3/4 in
  • 100 mV/A output connects via banana plugs to DMMs
  • CAT III 300 V safety rating with ±1 % accuracy

Specifications

BrandFLUKE
TypeElectronic

Questions about this item

What does the 100 mV/A output scale mean for the measurement range?

The probe delivers 100 mV per amp, so a 20 A AC or 30 A DC current produces a 2 V or 3 V signal that a standard DMM voltage range can read directly.

Will the 0.7 in jaw fit a 3/4 in insulated cable?

The jaw opens to 0.7 in (19 mm) and the spec lists a maximum conductor size of 3/4 in, so typical 3/4 in cable insulation fits inside the clamp.

How do I connect the banana plugs to my multimeter without reversing polarity?

Plug the red banana into the DMM voltage-positive terminal and the black banana into the common terminal; reversing them inverts the reading but causes no damage.

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