Sale!

Fluke 378 FC (Fluke Connect) Clamp Meter 1000A 1000V AC/DC, Max Current 2.5kA AC CAT III 1000 V, CAT IV 600 V 

Fluke

Original price was: £563.00.Current price is: £445.00. / £534.00 incl VAT

⚡ A voltage and current clamp with a Power Quality indicator, FieldSense technology, and an iFlex probe
⚡ Fluke Connect enables communication with a smartphone/ tablet with the Fluke Connect App installed
⚡ Monitor log and trend data via the Fluke Connect App
⚡ View readings and results and calculate Phase Rotation via the Fluke Connect App
⚡ FieldSense technology facilitates voltage and current measurement without making contact with live conductors
⚡ THREE YEAR FLUKE WARRANTY

In stock (can be backordered)

Price Pledge

Add Calibration on your Clamp Meter.

Description


Spring 2025 Deals and Offers

Fluke 378 FC Clamp Meter 1000A 1000V AC/DC, Max Current 2.5kA AC CAT III 1000 V, CAT IV 600 V

Product Details:

Loaded with technology! – FieldSense, Fluke Connect & Power Quality Indicator

The first of its kind non-contact voltage clamp meters, powered by revolutionary FieldSense technology from Fluke. The dual display shows voltage and current readings simultaneously as both measurements are taken via the clamp jaw. Visual Continuity also provides a bright green screen for easy detection of continuity in noisy work areas.

The Fluke 378FC Non-Contact Voltage True-rms AC/DC Clamp Meter (with iFlex) is the more advanced version of the 377FC, the main difference is that this model includes a unique Power Quality Indicator function that senses power quality issues automatically and will indicate whether equipment or power line is faulty.

When making FieldSense measurements, the 378 FC will detect and display power quality issues relating to current, voltage, power factor or any combination of the three. Now you can quickly determine if an upstream supply problem exists or if there is a downstream equipment problem, allowing you to take corrective action quickly.

The iFlex flexible current probe allows you to measure AC current as high as 2500A, its design means you can assess large conductors in difficult to reach spaces with ease.

No more hand-written notes or complicated maths

  • Complete 3-phase voltage and current tests in 3 easy steps
  • Full set of phase-to-ground and phase-to-phase values calculated
  • Displayed on your smartphone and saved to the cloud via Fluke Connect software
  • Phase rotation calculated and shown on the Fluke Connect software

Record, analyse, share results with Fluke Connect® software

Communicate with a smartphone/ tablet with the Fluke Connect App downloaded. Via this app, users can view and save measurements, monitor, log and trend data, and calculate parameters such as Phase Rotation. Fluke Connect and the Fluke Connect App are particularly useful when attempting to identify intermittent faults.

The Fluke Connect (FC) capability allows you to:

  • Save measurements to your phone and the Fluke Cloud, for comparison of readings over time
  • remotely log, trend and monitor measurements to pinpoint intermittent faults
  • Gather data as the basis for a preventive maintenance program

See it in action!

Fluke 378FC True-RMS Non-Contact AC/DC Clamp Meter Key Features

  • A voltage and current clamp with a Power Quality indicator, FieldSense technology, and an iFlex probe
  • Fluke Connect enables communication with a smartphone/ tablet with the Fluke Connect App installed
  • Monitor log and trend data via the Fluke Connect App
  • View readings and results and calculate Phase Rotation via the Fluke Connect App
  • FieldSense technology facilitates voltage and current measurement without making contact with live conductors
  • Backlit display
  • The display will turn green when a stable FieldSense measurement is reached
  • Performs three-phase voltage and current tests in three quick and easy steps
  • iFlex Probe enables measurement of very high currents up to 2500A
  • iFlex Probe provides access to large conductors in tight spaces
  • Calculates a full set of phase-to-ground and phase-to-phase values
  • Visual Continuity indicator: the display turns green while the continuity beeper sounds
  • Power Quality Indicator: detects power quality issues allowing the user to determine whether the fault is in the equipment or the power line
  • Supplied with a TPAK Magnetic Hanging Kit
  • Includes a Carry Case with the capacity to hold the Fluke 378, iFlex Probe, test leads, and black grounding clip
  • Ergonomic and easy-to-use voltage and current clamp meter with an eclectic selection of features

What’s Included?

  • 378 FC Non-Contact Voltage True-rms Clamp Meter
  • iFlex flexible current probe (18 inches; 48 cm)
  • TL224 silicone insulated test leads
  • TP175 adjustable length test probes
  • AC285 grounding clip (black, quantity one)
  • TPAK magnetic hanging kit, with 9 inch (23 cm) hanging strap
  • Premium Carrying case
  • Quick reference guide
  • Three Year Fluke Warranty

Fluke 378FC Non-Contact Voltage True-rms AC/DC Clamp Meters with iFlex Technical Specifications

General specifications
General Maximum Voltage between any Terminal and Earth Ground 1000 V
Battery Type 2 AA IEC LR6 alkaline
Life 200 hour
Display Dual readout
Automatic Power Off 20 minutes
Electrical
AC Current: Jaw
Range 999.9 A
Resolution 0.1 A
Accuracy 2 % ±5 digits (10 Hz to 100 Hz)
2.5 % ±5 digits (100 Hz to 500 Hz)
Crest Factor (50/60 Hz) 3 @ 500 A
2.5 @ 600 A
1.42 @ 1000 A
Add 2 % for C.F. >2
AC Current: Flexible Current Probe
Range 2500 A
Resolution 1 A (≤2500 A) 0.1 A (≤999.9 A)
Accuracy 3 % ±5 digits (5 Hz to 500 Hz)
Crest Factor (50/60Hz) 3.0 at 1100 A
2.5 at 1400 A
1.42 at 2500 A
Add 2 % for C.F. >2
Position Sensitivity
Clamp Distance from Optimum i2500-10 Flex i2500-18 Flex Error
A 0.5 in (12.7 mm) 1.4 in (35.6 mm) ± 0.5 %
B 0.8 in (20.3 mm) 2.0 in (50.8 mm) ± 1.0 %
C 1.4 in (35.6 mm) 2.5 in (63.5 mm) ± 2.0 %
Measurement uncertainty assumes centralized primary conductor at optimum position, no external electrical or magnetic field, and within operating temperature range.
DC Current
Range 999.9 A
Resolution 0.1 A
Accuracy 2 % ±5 digits1
[1]When using the ZERO function to compensate for offsets
AC Voltage: Field Sense
Range 1000 V
Resolution 1 V (≤1000V)
Accuracy ≤4/0 AWG 3 % ±5 digits (45 Hz to 66 Hz)
≥4/0 AWG 5 % ±5 digits (45 Hz to 66 Hz)
Position wire as close as possible to jaw opening (see illustration)

Clamp Diagram

AC Voltage: Test Leads
Range 600.0 V 1000 V
Resolution 0.1 V (≤600.0 V)
1 V (≤1000 V)
Accuracy 1 % ±5 digits (20 Hz to 500 Hz)
DC Voltage
Range 600.0 V
1000 V
Resolution 0.1 V (≤600.0 V)
1 V (≤1000 V)
Accuracy 1 % ±5 digits
mV dc
Range 500.0 mV
Resolution 0.1 mV
Accuracy 1 % ±5 digits
Amps Frequency: Jaw
Range 5.0 Hz to 500.0 Hz
Resolution 0.1 Hz
Accuracy 0.5 % ±5 digits
Trigger Level 5 Hz to 10 Hz, ≥10 A
10 Hz to 100 Hz, ≥ 5 A
100 Hz to 500 Hz, ≥ 10 A
Amps Frequency: Flexible Current Probe
Range 5.0 Hz to 500.0 Hz
Resolution 0.1 Hz
Accuracy 0.5 % ±5 digits
Trigger Level 5 Hz to 20 Hz, ≥25 A
20 Hz to 100 Hz, ≥20 A
100 Hz to 500 Hz,≥25 A
Resistance
Range 60.00 kΩ
6000 Ω
600.0 Ω
Resolution 0.1 Ω (≤600.0 Ω)
1 Ω (≤6000 Ω)
10 Ω (≤60.00 kΩ)
Accuracy 1 % ±5 digits
Capacitance
Range 1000 μF
Resolution 0.1 μF (≤100.0 μF)
1 μF (≤1000 μF)
Accuracy 1 % ±4 digits
Mechanical
Size (L x W x H) 274 mm x 86 mm x 47 mm
Weight (with Batteries) 463 g
Jaw Opening 34 mm
Flexible Current Probe Diameter 7.5 mm
Flexible Current Probe Cable Length (head to electronics connector) 1.8 m
Rogowski Coil Length 450 mm
Environmental
Operating Temperature -10 °C to 50 °C
Storage Temperature -40 °C to 60 °C
Operating Humidity (without condensation) Non condensing (<10 °C)
≤90 % RH (10 °C to 30 °C)
≤75 % RH (30 °C to 40 °C)
≤45 % RH (40 °C to 50 °C)
Temperature Coefficients Add 0.1 x specified accuracy for each degree C >28 °C or <18 °C
Ingress Protection IEC 60529: IP30 (jaw closed)
Operating Altitude 2000 m
Storage Altitude 12 000 m
Electromagnetic Compatibility (EMC)
International IEC 61326-1: Portable Electromagnetic Environment
IEC 61326-2-2, CISPR 11: Group 1, Class B
Group 1: Equipment has intentionally generated and/or uses conductively-coupled radio frequency energy that is necessary for the internal function of the equipment itself.
Class B: Equipment is suitable for use in domestic establishments and in establishments directly connected to a low voltage power supply network which supplies buildings used for domestic purposes.
Emissions that exceed the levels required by CISPR 11 can occur when the equipment is connected to a test object.
Korea (KCC) Class A equipment (Industrial Broadcast & Communications Equipment)
Class A: Equipment meets requirements for industrial electromagnetic wave equipment and the seller or user should take notice of it. This equipment is intended for use in business environments and not to be used in homes.
USA (FCC) 47 CFR 15 subpart B. This product is considered an exempt device per clause 15.103.
Safety
General IEC 61010-1: Pollution degree 2
Measurement IEC 61010-2-032: CAT III 1000 V / CAT IV 600 V
IEC 61010-2-033: CAT III 1000 V / CAT IV 600 V
Current Clamp for Leakage Current Measurements IEC 61557-13: Class 2, ≤30 A/m
Wireless Radio
Radio Frequency Certification FCC ID: T68-FBLE IC:6627A-FBLE
Frequency Range 2405 MHz to 2480 MHz
Output Power <100 mW
Radio Frequency Data Radio Frequency Data For Class A Devices
SIMPLIFIED EU DECLARATION OF CONFORMITY
Hereby, Fluke declares that the radio equipment contained in this Product is in compliance with Directive 2014/53/EU. The full text of the EU declaration is available at the following internet address: https://dam-assets.fluke.com/s3fs-public/FLK_RED_1aeng0900.pdf.

What’s Included?

  • 378 FC Non-Contact Voltage True-rms Clamp Meter
  • iFlex flexible current probe (18 inches; 48 cm)
  • TL224 silicone insulated test leads
  • TP175 adjustable length test probes
  • AC285 grounding clip (black, quantity one)
  • TPAK magnetic hanging kit, with 9 inch (23 cm) hanging strap
  • Premium Carrying case
  • Quick reference guide
  • Three Year Fluke Warranty

🚚 Testersmans Shipping Policy

Free Mainland GB Delivery Over £150

We offer free delivery on most mainland Great Britain orders over £150 (ex VAT).
This applies across England, Wales, and most of Scotland, excluding certain remote or offshore postcodes.

If your order total falls just short of £150, or you’re a returning customer, feel free to contact us — we may be able to offer a discount code or delivery workaround.
📞 01945 738112 | ✉️ sales@testermans.co.uk


📦 UK Delivery Options

We work with both Royal Mail and DHL to offer reliable and flexible delivery across the UK:

  • Royal Mail – Best suited for lighter parcels and for customers in remote regions, including the Highlands, Islands, and Northern Ireland.
  • DHL – Ideal for most mainland UK orders, providing fast, tracked delivery and excellent reliability for time-sensitive shipments.

Our checkout system automatically displays the available delivery services for your postcode and order weight, ensuring you always see the most suitable options.

Note: Heavy, bulky, or freight-only orders will be charged separately.
Our website is designed for quick, transactional purchases rather than bulk or palletised orders.
Please contact us in advance for a tailored freight quotation if your order falls into this category.


⏱ Dispatch & Delivery Timing

We aim to dispatch all in-stock orders promptly, but delivery depends on both when you order and which service you select.

  • UK orders: placed by 2:00 PM Monday–Friday are usually dispatched the same day.
  • International orders: placed by 2:00 PM Monday–Thursday are usually dispatched the same day.

Orders placed after these times are processed the next working day. This means delivery may occur the following day or later, depending on the courier and service selected.

Once dispatched, your chosen delivery service determines how quickly your parcel arrives:

  • Standard services We use Royal Mail Tracked 24 or DHL Parcel as our ‘Standard’ services. They are not guaranteed to arrive next working day.
  • Premium services (e.g. Royal Mail Special Delivery or DHL by Noon) offer guaranteed delivery windows.

If your order is time-sensitive, we strongly recommend choosing a guaranteed service or contacting us before ordering to confirm availability.

Please note: For logistical reasons, we may occasionally adjust the delivery method selected at checkout. For example, smaller items may be better suited to letterbox-friendly packaging or may be at greater risk of delay or loss via certain services. We actively monitor courier and postal service disruptions—including strikes and delays—and may modify shipping arrangements to help ensure timely and secure delivery.


📅 Busy Periods & Delays

We always aim to dispatch promptly, but delivery times may be affected by:

  • Seasonal demand (e.g. Christmas, bank holidays, or industry shutdowns)
  • Courier network delays outside our control
  • Supplier lead times or calibration requirements for certain equipment

If your delivery is time-critical, please contact us before ordering so we can confirm stock and courier availability.


🌍 International Shipping

We ship worldwide using UPS Express Saver® and other trusted global courier partners. All international shipments are tracked and generally dispatched Monday to Thursday to ensure smooth customs clearance and transit.

Estimated delivery times:

  • Europe: 1–2 working days
  • North America: 2–3 working days
  • Asia-Pacific & Rest of World: 3–5 working days

Delivery times vary depending on location, customs clearance, and local courier performance.


💰 Taxes, Customs & Import Duties

International customers are responsible for any applicable taxes, customs charges, or import duties.
These are not included in our product or shipping prices.

Your courier will typically provide a secure payment link for any import charges once your parcel reaches customs.
If import fees are refused and the parcel is returned, we will issue a refund minus all incurred shipping and return costs.


📍 Using Your Own Courier

If you would prefer to arrange collection via your own courier (UK or international), please contact us before placing your order to coordinate collection from our Wisbech warehouse.


📝 Important Notes

  • Please ensure your delivery address and contact number are correct at checkout.
  • Undelivered parcels may be returned to us after a short holding period.
  • Redelivery or return fees may apply, even if your order originally qualified for free delivery.
  • By placing an order, you confirm your understanding and acceptance of this policy.