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Fluke 376 FC Review: 1000 A, a Flexible Probe and Readings From Outside the Arc Zone

Two things separate this clamp from a basic one: a flexible probe that goes where a jaw cannot, and the ability to leave the meter connected and read it from a safe distance.

By the Akermin Editorial Team · 4 min read

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Fluke 376 FC Review: 1000 A, a Flexible Probe and Readings From Outside the Arc Zone

Fluke · Fluke - FLUKE-376 FC 376 FC 1000A Ac/Dc TRMS Wireless Clamp W/Iflex

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Price and availability are shown on Amazon and can change at any time.

Verdict

The Fluke 376 FC is a working industrial clamp rather than a general purpose one. The listing states 1000 A AC and DC True RMS measurement, an iFlex flexible probe, logging and trending to pinpoint intermittent faults, and Bluetooth transmission so measurements can be taken outside the arc flash zone. The combination of a flexible probe and remote reading is what earns the money: together they let you measure things a rigid jaw cannot reach, in situations where you should not be standing.

Documented Specifications

Item Manufacturer listing
Current 1000 A AC and DC, True RMS
Flexible probe iFlex supplied
Logging Log and trend measurements, pinpoint intermittent faults
Wireless Bluetooth to Apple or Android devices, Fluke Connect app
Safety workflow Capture measurements outside the arc flash zone

The listing bullets do not state the safety category rating, jaw opening or accuracy. Confirm the category rating against the equipment you work on before use.

The Flexible Probe Solves the Access Problem

A rigid clamp jaw has two limits: how wide it opens and how much room it needs around the conductor. Real installations defeat both routinely. A service entrance conductor is too large. A busbar is the wrong shape. A bundle in a crowded enclosure has no space for a jaw to swing. In each case the measurement simply cannot be taken, and the usual outcome is a guess or a shutdown.

A flexible probe wraps around the conductor like a strap and is thin enough to thread into congested spaces. It also handles awkward geometry: you can loop it around a group of conductors to read the sum, or a single conductor inside a bundle you cannot separate. For anyone working on service equipment or larger motors, this is the feature that changes what is possible.

Remote Reading Is a Safety Feature, Not a Convenience

The arc flash boundary is the distance within which an arc event could cause a serious burn. Working inside it requires appropriate protective equipment and, more importantly, a reason to be there. A meter that can be clamped in place and read from outside that boundary removes the reason for many measurements.

The workflow is straightforward: install the probe with the equipment safely isolated where possible, restore, close the enclosure, step back, and read the measurement on a phone. The listing describes exactly this, and it also means a second person is not needed to read the display while someone else holds the meter.

Logging on a Clamp

Current is often the parameter that reveals an intermittent problem: a motor drawing more than it should at a particular point in its cycle, a heater that comes on unexpectedly, a supply that sags when a large load starts. Recording current over hours turns those from suspicions into evidence. Because the clamp is non-invasive, a logging clamp can be left in place on a live system in a way that a lead-based meter cannot.

DC Matters Here Too

At 1000 A AC and DC, this clamp covers battery banks, solar strings and DC drives as well as conventional distribution. Remember to zero the DC function before measuring: Hall effect sensors drift with temperature and position, and an uncorrected offset appears as a constant error in every reading. Doing it takes a second and is the most common source of wrong DC current readings.

Strengths

  • 1000 A AC and DC covers almost anything short of large industrial services.
  • iFlex reaches conductors a rigid jaw cannot.
  • Logging and trending for intermittent faults.
  • Bluetooth reading supports measuring from outside the arc flash boundary.

Limitations

  • Expensive compared with a basic residential clamp.
  • No safety category rating in the listing bullets.
  • The app adds a dependency where a plain display would not.
  • Larger and heavier than a pocket clamp, which matters on a ladder.

How It Compares

The 374 FC and 377 FC sit below it at 600 A, with the 377 FC adding FieldSense voltage measurement through the jaw. For residential work at 400 A without wireless, the Fluke 323 and 325 are far cheaper. The Klein CL390 covers AC and DC at 400 A with a wider function list. Our ranking is in the clamp meter roundup.

How We Research

All figures come from the manufacturer listing and Fluke’s published documentation. We did not run laboratory tests and publish no measurements of our own.

Fluke - FLUKE-376 FC 376 FC 1000A Ac/Dc TRMS Wireless Clamp W/Iflex

Fluke - FLUKE-376 FC 376 FC 1000A Ac/Dc TRMS Wireless

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FLUKE-374 FC 600A Ac/Dc TRMS Wireless Clamp

FLUKE-374 FC 600A Ac/Dc TRMS Wireless Clamp

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Fluke 377FC AC/DC TRMS Non-Contact Voltage Wireless Clamp w/iFlex

Fluke 377FC AC/DC TRMS Non-Contact Voltage Wireless Clamp w/iFlex

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Products shown because their documented specifications fit this guide. Price and availability are on Amazon and can change.

Frequently Asked Questions

What is iFlex?

A flexible current probe that wraps around a conductor instead of clamping it. It reaches busbars, cable bundles and conductors too large or awkward for a rigid jaw, and slides into crowded enclosures where a jaw will not fit.

What does reading outside the arc flash zone mean?

The listing states measurements can be captured outside the arc flash zone using Bluetooth to a phone or tablet. You clamp the meter, close up, step back beyond the boundary and read the value on your device.

Does it log?

The listing states logging and trending of measurements to pinpoint intermittent faults, and transmission of results through the Fluke Connect app.

Does it measure DC current?

Yes, the product name states 1000 A AC and DC True RMS, so it covers solar, battery and DC drive work as well as conventional AC installations.

Affiliate disclosure: Akermin earns a commission from qualifying Amazon purchases made through links on this page. Our editorial picks are based on documented specifications and owner feedback, not commissions.