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Fluke 374 FC True-rms AC/DC Clamp Meter

The Fluke 374 FC offers advanced troubleshooting performance and is now part of the Fluke Connect® family of wireless test tools.

  • The Fluke 374 FC is part of the Fluke Connect family of wireless test tools.  Now you can:

    • Trend measurements and pinpoint intermittent faults by connecting your meter to your phone via Fluke Connect® Measurements app
    • Transmit results wirelessly via Fluke Connect® Measurements app
    • Create and send reports right from the field
    • Stay safely away from the arc flash zone through Bluetooth connectivity to Apple and Android devices

    The Fluke 374 FC is the direct replacement for the Fluke 374 Clamp Meter.

    • Connect your meter to your smartphone with Fluke Connect Measurements
    • Read measurements on your phone at a safe distance, wearing less PPE while your meter takes all the risks
    • Record results directly to your phone and the Cloud
    • Create and share reports from the field via email, or converse in real-time with ShareLive™ video calls
    • Compatible with iFlex flexible current probe; use to expand the measurement range to 2500 A ac; provides access to large conductors in tight spaces
    • Compatible with TPAK magnetic hanging strap
    • Proprietary inrush measurement technology to filter out noise and capture motor starting current exactly as the circuit protection sees it
    • CAT IV 600 V, CAT III 1000 V safety rating
    • Three-year warranty
    • Soft carrying case

    Measurement Capability

    • 600 A ac and dc current measurement
    • 2500 A ac current measurement with (optional) iFlex flexible current probe
    • 1000 V ac and dc voltage measurement
    • True-rms voltage and current for accurate measurements on non-linear signals
    • Resistance measurement to 6000 Ω with continuity detection
    • Min, max, average, and inrush recording to capture variations automatically
    • 1000 μF capacitance measurement
  • General Specifications
    AC Current via Jaw
    Range 600.0 A
    Resolution  0.1 A
    Accuracy  2% ±5 digits (10 Hz to 100 Hz)
    2.5% ±5 digits (100-500 Hz)
    Crest Factor (50 Hz/60 Hz) 2.5 @ 600 A
    Add 2% for C.F. >2
    AC Current via Flexible Current Probe
    Range 2500 A
    Resolution 0.1 A (≤ 600 A)
    1 A (≤ 2500 A)
    Accuracy 3% ±5 digits (5 – 500 Hz)
    Crest Factor (50/60Hz) 2.5 at 1400 A
    1.42 at 2500 A
    Add 2% for C.F. > 2
    Position Sensitivity
    Flexible current probe
      i2500-10 Flex i2500-18 Flex
    Distance from Optimum 0.5 in (12.7 mm) 1.4 in (35.6 mm)
    Error ±0.5 % ±0.5 %
    Distance from Optimum 0.8 in (20.3 mm) 2.0 in (50.8 mm)
    Error ±1.0 % ±1.0 %
    Distance from Optimum 1.4 in (35.6 mm) 2.5 in (63.5 mm)
    Error ±2.0 % ±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 600.0 A
    Resolution 0.1 A
    Accuracy 2% ±5 digits
    AC Voltage
    Range 1000 V
    Resolution 0.1 V (≤600.0 V)
    1 V (≤1000 V)
    Accuracy 1.5% ±5 digits (20 Hz to 500 Hz)
    DC Voltage
    Range 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
    Range 6000 Ω
    Resolution 0.1 Ω (≤600 Ω)
    1 Ω (≤6000 Ω)
    Accuracy 1% ±5 digits
    Range 1000 μF
    Resolution 0.1 μF (≤ 100 μF)
    1 μ F (≤ 1000 μF)
    Accuracy 1% ±4 digits
    Mechanical Specifications
    Maximum voltage between any terminal and earth ground 1000 V
    Batteries 2 AA, NEDA 15A, IEC LR6
    Operating temperature -10 °C to +50 °C
    Storage temperature -40 °C to +60 °C
    Operating humidity -
    non-condensing (< 10°C)
    ≤90% RH (at 10 °C to 30 °C)
    ≤75% RH (at 30 °C to 40 °C)
    ≤45% RH (at 40 °C to 50 °C)
    Operating altitude 3000 m
    Storage altitude 12,000 m
    Size (L x W x H) 249 x 85 x 45 mm
    Weight 395 g
    Jaw opening 34 mm
    Flexible current probe diameter 7.5 mm
    Flexible current probe cable length
    (head to electronics connector)
    1.8 m
    Safety IEC 61010-1, Pollution Degree 2
    IEC 61010-2-032: CAT III 1000 V / CAT IV 600 V
    IEC 61010-2-033:CAT III 1000 V / CAT IV 600 V
    IP rating IEC 60529: IP30, non-operating
    Radio Frequency Certification FCC ID T68-FBLE IC:6627A-FBLE
    Electromagnetic Compatibility (EMC)
    International IEC 61326-1: Portable, Electromagnetic Environment, IEC 61326-2-2
    CISPR 11: Group 1, Class A
    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 A: Equipment is suitable for use in all establishments other than domestic and those directly connected to a low-voltage power supply network that supplies buildings used for domestic purpose. There may be potential difficulties in ensuring electromagnetic compatibility in other environments due to conducted and radiated disturbances. 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 Broadcasting & Communication 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.
    Temperature coefficients Add 0.1 x specified accuracy for each degree C above 28 °C or below 18 °C
    • Models
      Model Name Description  
      Fluke 374 FC Fluke 374 FC True-rms AC/DC Clamp Meter


      • Soft carrying case
      • TL75 test leads
      • Two AA Alkaline batteries
      • Coated instruction card
      • Safety information sheet