Professional Tool Reviews for Pros


Fluke 393 FC CAT III 1500V True-RMS Clamp Meter

Fluke 393 FC CAT III 1500V clamp meter

With measuring 1500V DC solar panel installations, electricians have come across a new question: Most current AC/DC clamp meters carry a safety rating of CATIII 1000V. Can you use these tools to measure a 1500 V DC solar panel installation? The answer has some caveats. Fortunately, Fluke plans to bypass the problem with the Fluke 393 FC CAT III 1500V True-RMS Clamp Meter.


The Fluke 393 FC CAT III 1500 V True-RMS clamp meter does something very new and necessary. It’s the world’s first test tool with a CAT III 1500 V rating. That means it can safely test solar installations operating at 1500 volts DC under a variety of conditions. It goes way beyond something like the Fluke T6-1000 clamp meter.


1500V solar panel testing

Other Great Fluke 393 FC CAT 3 1500V Clamp Meter Features

The Fluke 393 offers a thin jaw for easy access to cables in crowded combiner boxes. You get the expected Fluke build quality and an IP54 rating to protect against the elements. The tool provides DC power measurement (kVA), audio polarity, and visual continuity features. It also records test results to your smartphone (and uploads them to the cloud) using Fluke Connect software.

Why It Matters

Admittedly, we don’t do a ton of solar panel installations personally, but we see them going up all around us. You may wonder why a product like the Fluke 393 FC makes any difference. These larger “solar farms” use higher voltage lines. Many electricians use AC/DC clamp meters that carry a safety category of CATIII 1000V. Since the solar panel installation isn’t categorized into any particular category due to its floating voltage, you can use these CAT III 1000V clamp meters to measure 1500V DC between the terminals without any issues.

The problem arises if and when the power conditioner is connected and grounded. Then, the solar panel installation falls under the CATIII and CATIV category. At that point, you need to take care to use the proper products (like the Fluke 393 FC) when taking measurements during the installation process.

Unfortunately, we’re still waiting on pricing and availability for the Fluke 393 FC clamp meter, but we’ll update this page when that info becomes available.

Related articles

DeWalt Laser Distance Measurers Compared

DeWalt has several models of laser distance measures. With a variety of features that support a range of leveling and layout applications, DeWalt Laser Distance Measures deliver a variety of accuracies and convenience to the jobsite. Ranging from 30-foot to over 330-foot working ranges, these LDMs all retail for less than $100 and some feature […]

Ryobi Whole Stud Detector Review

You probably know a guy that tests the limits of well-worn jokes by holding a stud finder to himself and saying, “beep!” Maybe you are that guy…or maybe I am that guy. The Ryobi Whole Stud Detector won’t cut down on the bad (Dad) jokes, but it could help you quickly locate studs behind drywall. […]

Klein Advanced Circuit Tracer Kit

Trace Wires Confidently With Klein’s Advanced Circuit Tracer Kit In the electrical field, there’s less room for error than in other trades. A key part of that is knowing exactly where wires and circuits are hidden behind walls and underground. The Klein Tools Advanced Circuit Tracer Kit aims to take the guesswork out of locating […]

Subscribe
Notify of
guest
0 Comments
Inline Feedbacks
View all comments
0
Would love your thoughts, please comment.x
()
x