Fluke 393 FC CAT III / 1500 V TRMS Clamp Meter
The Fluke 393 FC is a true-RMS clamp meter built for technicians working in high-voltage DC environments such as solar arrays, wind power systems, electric railways and data centre battery banks. It measures up to 1500 V DC, 1000 V AC and up to 999.9 A DC or AC through the clamp jaw, with a thin jaw profile that reaches cables in crowded combiner boxes.
Brand and standards
Fluke is one of the most trusted names in electrical test and measurement, and Powerpoint Engineering is an authorised Fluke distributor in Ireland. The 393 FC is rated CAT III 1500 V, and its supplied test leads are also rated to CAT III 1500 V DC, so the whole measurement chain is cleared for the same duty. An audible polarity indicator helps prevent accidental miswires, while visual continuity shows a bright green light in the display for fast checks in dark or noisy surroundings.
Applications
The 393 FC is suited to renewable energy and DC-heavy installations where current and voltage measurement is part of routine commissioning and maintenance:
- Solar array commissioning, fault-finding and combiner box inspection
- Wind power and electric railway maintenance
- Battery bank checks on uninterruptible power supplies in data centres
- Outdoor work where the IP54 rating protects against dust and water
- DC power surveys, with readings shown in kVA
Specifications
|
Specification |
Fluke 393 FC |
|
Measurement type |
True RMS |
|
DC voltage |
Up to 1500 V DC |
|
AC voltage |
Up to 1000 V AC |
|
AC/DC current (jaw) |
Up to 999.9 A |
|
Safety rating |
CAT III 1500 V |
|
Ingress protection |
IP54 |
|
Connectivity |
Fluke Connect software (logging and reporting) |
Key features
- Thin jaw for access to cables in tightly packed combiner boxes
- DC power measurement with readings displayed in kVA
- Audible polarity indicator to help prevent accidental miswires
- Visual continuity with a bright green display indication
- Logging and reporting of results via Fluke Connect software
FAQs
Is the Fluke 393 FC rated for high-voltage DC solar work?
Yes. The 393 FC measures up to 1500 V DC and is rated CAT III 1500 V, and the supplied test leads carry the same CAT III 1500 V DC rating. That makes it suited to solar arrays, wind power systems and other high-voltage DC installations where the whole measurement chain needs to match the duty.
Can I use it outdoors on a solar site?
Yes. The 393 FC is IP54 rated, so it stands up to dust and water and suits outdoor work on solar arrays and wind power systems. The bright green visual continuity also helps in low-light conditions.
Can Powerpoint Engineering calibrate my Fluke 393 FC?
Yes. Our in-house calibration and repair laboratory services Fluke clamp meters and issues traceable certificates. Speak to our calibration team to book a slot that fits your maintenance schedule.
To compare models, view our full range of current clamps and accessories, or talk to our team about calibration and training for your instruments.



