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Fluke 355 True RMS AC/DC Clamp Meter

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  • Measures AC/DC voltage, AC/DC current and resistance
  • True RMS capability for accurate AC readings
  • Inrush current measurement and low pass filter for VFD motor drive

rrp £626.00

now £499.00 (Ex. VAT) £598.80 (Inc. VAT)

rrp £626.00

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"The 58mm draw allows the Fluke 355 to measure several cables at once"

  • Description

    Fluke 355 True RMS AC/DC Clamp Meter

    The Fluke 355 True RMS AC/DC Clamp Meter is an adaptable clamp meter that can measure AC/DC current (0 to 2000A), true RMS AC current (0 to 1400A), true RMS AC voltage (0 to 600V), AC/DC voltage (0 to 1000V), and resistance (0 to 400kΩ). Further to these measurement capabilities, the instrument can assess Inrush current during start-up phases of motors and it features a low pass filter for filtering out anomalous readings when inspecting VFD (Variable frequency motor drives). The user also benefits from continuity testing with an audible buzzer.

    The large jaw of the Fluke 355 (58mm) allows it to measure thick cables and several cables at once whilst an option for auto-ranging automatically picks the best range and resolution for the parameter under scrutiny. However, the user can also adjust the range manually. Min/max and average recording is also available through the simple min/max push button.

    All readings are shown on the Fluke 355’s clear, backlit display and data hold allows the user to freeze results on screen. This instrument comes supplied with a soft carry case, test leads, probe tips, and crocodile clips whilst the portable design and simple dial interface mean it is straightforward to use. Simple bush buttons engage frequency mode, Inrush mode, low-pass filter mode and DC current zero. The 355 is rated as Cat IV to 600V and Cat III to 1000V under EN61010-2-032 and is also designed to withstand a 1m fall.

    Fluke part number: 355

    Key Features

    • True RMS AC current range: 0 to 1400A
    • AC/DC current range: 0 to 2000A
    • True RMS AC voltage range: 0 to 600V
    • AC/DC voltage range: 0 to 1000V
    • Resistance range: 0 to 400kΩ
    • Inrush current
    • Low pass filter for VFD motor drives
    • Continuity testing
    • 58mm clamp jaw
    • Auto ranging and manual ranging
    • Min/max/avg recording
    • Clear, backlit display
    • Cat IV 600V, Cat III 1000V
    • 100-hour battery life
    • Supplied with case, test leads, probe tips and crocodile clips
  • Specification

    AC/DC Current (10Hz to 100Hz)

    RangeResolutionAccuracy, ATrigger Level for InrushTrigger Level for Hz (Filter OFF)Trigger Level for Hz (Filter ON)
    40A 10mA 1.5% rdg + 15 digits 0.50A 2.50A 0.50A
    400A 100mA 1.5% rdg + 5 digits 5.0A 2.5A 2.5A
    1400A True RMS AC 1A 1.5% rdg + 5 digits 5A 8A 8A
    2000A 1A 1.5% rdg + 5 digits 5A 8A 8A

    AC/DC Current (100.1Hz to 1kHz)

    RangeResolutionAccuracy, A
    40A 10mA 3.5% rdg + 15 digits
    400A 100mA 3.5% rdg + 5 digits
    1400A True RMS AC 1A 3.5% rdg + 5 digits
    2000A 1A 3.5% rdg + 5 digits

    AC/DC Voltage (10Hz to 100Hz)

    RangeResolutionAccuracyTrigger Level for Hz (Filter OFF)Trigger Level for Hz (Filter ON)
    4V 1mV 1% rdg + 10 digits 0.050V 0.050V
    40V 10mV 1% rdg + 5 digits 0.25V 0.25V
    400V 100mV 1% rdg + 5 digits 6V 6V
    600V True RMS AC 1V 1% rdg + 5 digits 6V 6V
    1000V 1V 1% rdg + 5 digits N/A N/A

    AC/DC Voltage (100.1Hz to 1kHz)

    RangeResolutionAccuracy, A
    4V 1mV 3% rdg + 10 digits
    40V 10mV 3% rdg + 5 digits
    400V 100mV 3% rdg + 5 digits
    600V 1V 3% rdg + 5 digits

    Resistance Measurement

    RangeResolutionAccuracy, A
    400Ω 0.1Ω 1.5% rdg + 5 digits
    4kΩ 1.5% rdg + 5 digits
    40kΩ 10Ω 1.5% rdg + 5 digits
    400kΩ 100Ω 1.5% rdg + 5 digits

    Continuity Test

    • On at ≤30Ω
    • Off at ≥100Ω

    Frequency Measurement

    • Measurement range: 5.0Hz to 1kHz
    • Resolution: 0.1Hz (15Hz top 399.9) / 1Hz(400Hz to 1kHz)
    • Accuracy (5.0 Hz to 100 Hz): 0.2% + 2 counts
    • Accuracy (100.1 Hz to 1 kHz): 0.5% + 5 counts
    • Trigger level: Refer to current and voltage tables


    • Batteries: 6 x 1.5V
    • Test leads: Rated to 1000V
    • Weight: 0.814kg
    • Jaw size: 58mm
    • Dimensions (L x W x D): 300mm x 98mm x 52mm
    • Safety rating: IEC 61010-2032, 600 Cat IV, 1000V Cat III
  • Supplied Accessories

    • Fluke 355 True RMS AC/DC Clamp Meter
    • Instruction manual for Fluke 355 True RMS AC/DC Clamp Meter
    • 2 x test leads
    • 2 x probe tips
    • 2 x crocodile clips
    • Soft carry case with shoulder strap
    • 6 x AA batteries
    • Manufacturer's calibration certificate
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