Fluke i310s Current Probe

Model: I310S

AC/DC Clamp. Features a range of 30A and 300A AC & 45A and 450A DC.

Add In House NIST Traceable Calibration to your I310S

1 to 2 Weeks

$404.99 USD

was $449.99


  • Current Ranges: 30 A and 300 A ACrms or ±45 A and 450 A DC
  • Measuring Ranges: ±45 A and 450 A
  • Output Sensitivity: 10 mV/A (40 A) to 1 mV/A (400 A)
  • Resolution: ±50 mA (40 A) to ±100 mA (400 A)
  • Load Impedance: > 10 k Ohms and 100 pF
  • Frequency Range (small signal): DC to 20 kHz (- 3 dB)
  • Phase Shift below 1 kHz, < 2 degrees
  • Temperature Coefficient: ±0.1% of reading / ±C
  • Power Supply: 9 V Alkaline

The Fluke i310s Current Probe is based on Hall Effect technology for use in measurement of both DC and AC current.
The Fluke i310s Current Probe may be used in conjunction with oscilloscopes and other suitable recording instruments for accurate non-intrusive current measurement.
Using advanced Hall Effect technology, the Clamp can accurately measure currents up to 450 A peak over the frequency range of dc to 20 kHz. These features make it a powerful tool for use in inverters, switch mode power supplies, industrial controllers, automotive diagnostics, and other applications requiring current measurements and/or waveform analysis.
Electrical Characteristics
Current Ranges

30 A and 300 A ACRMS or ±45 A and 450 A DC

±45 A and 450 A
Inrush Current

Output Sensitivity

10 mV/A (30 A)

1 mV/A (300 A)
Accuracy (at +25°C)
(30A range) ±1% of reading ±50 mA
(300A range) ±1% of reading ±300 mA
Bandwidth to meet accuracy specification

1 kHz
Phase Shift below 1 kHz

< 2 degrees

±50 mA (30 A)

±100 mA (300 A)
Load Impedance

> 10 k Ohms and ≤100 pF
Conductor Position Sensitivity

±1.5% relative to centre reading
Frequency Range
(small signal) DC to 20 kHz (- 3 dB)
Temperature Coefficient

±0.1% of reading / °C
Power Supply

9 V Alkaline, MN1604/PP3
Battery Life

30 Hours, low battery indicator
Working Voltage (see Safety Standards section)

300 V ACRMS or DC

General Characteristics
Maximum Conductor Size

19 mm diameter
Output Connection

Safety BNC connector

Supplied with safety 4mm adaptor
Output Zero

Manual adjust via thumbwheel
Cable Length

2 metres
Operating Temperature Range

-10 to +50 °C
Storage Temperature Range (with battery removed)

-20 to +85 °C
Operating Humidity

15% to 85% (non-condensing)

250 g

Safety Standards
BS EN 61010-1

BS EN 61010-2-032

BS EN 61010-031

300 VRMS, Category III, Pollution Degree 2


Use of the probe on un-insulated conductors is limited to 300 V ACRMS or DC and frequencies below 1 kHz.
EMC Standards
BS EN 61236 1998 +A1, A2, & A3
Click here for complete specifications on the Fluke I310S

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