Megger ICLAMP 1000 A AC Current Clamp 1001-012

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  • CAT IV 600 V Current Measurement to 1000 A AC
  • Versatile current probe compatible with a large amount of instruments
  • Excellent accuracy at 0.3% error at full range

rrp £290.00

now £269.00 (Ex. VAT) £322.80 (Inc. VAT)

rrp £290.00


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"Heavy Duty Current clamp offering excellent accuracy for power quality applications"

  • Description

    Megger ICLAMP 1000 A AC Current Clamp

    The ICLAMP is a current Clamp which has been designed to measure AC current up to 1000 Amps with a 1000:1 step down ratio.

    The clamp has a heavy duty construction which offers excellent accuracy of 0.3% error at full range and a small phase shift 0.7 at full range. This level of accuracy allows the instrument to be used for metering power, energy, and power quality applications.

    Megger have considered high performance by fitting the instrument with magnetic cores made from high-permeability Ni-Fe alloy.

    As a safety precaution Megger have introduced protected output terminals. These terminals are protected with a voltage limiting circuit ensuring a safe-to-touch voltage under all rated conditions.

    The ICLAMP meets the current international standard IEC 61010 rated to CAT IV 600V. The ICLAMP features large 52mm jaws ideal for larger cables onsite.


    The ICLAMP is known as a non contact current sensing clamp which makes it ideal for the use on applications with the following instruments.

    • Digital multimeters
    • Stakeless testing
    • Clamp enabled earth testers
    • Motor testers
    • Oscilloscopes
    • Power quality analysers
    • Attached Rod Technique (ART)
    • Data loggers

    The ICLAMP is versatile enough to be connected to an ammeter measuring up to 1 Amps. A current of 1000 Amps will result in the ammeter reading 1 Amps (1000: step down voltage).

    The ICLAMP is commonly paired with Megger DET3TC, DET4TC and DET4TCR earth testers along with the Megger MFT1730 and 1735 Multifunction Testers.

  • Specification

    • Step-down current ratio  1000:1
    • Sensitivity 1 mA/A

    Amplitude and phase accuracy of the output signal

    Primary Current * Accuracy of output signal Phase shift of output signal
    1 mA - 100 mA ≤1% + 5μA not specified
    0.1 A - 1 A ≤1% + 5μA ≤0.7°
    1 A - 10 A ≤1% + 5μA ≤0.7°
    10 A - 100 A ≤0.5% ≤0.7°
    100 A – 1000 A ≤0.3% ≤0.7°

    * Unless otherwise specified, reference conditions are: 22 ±3°C, 50% humidity, sinusoidal current at 50/60 Hz, no DC offset, centred conductor, external magnetic field <40 A/m, load impedance (burden) ≤1 Ω.

    Maximum continuous current

    • 1000 A at ≤500 Hz
    • 100 A at >500 Hz

    Frequency bandwidth

    • 15 Hz – 10 kHz

    Crest factor

    • ≥6 for current up to 2000 A peak (300 A rms)

    Influence of crest factor

    • ≤1% for CF≤4

    Nominal load impedance

    • ≤1 Ω (burden resistance)

    Maximum output voltage

    • ≤28 V peak (electronic limiter)

    Influence of frequency

    • 30 Hz – 5 kHz ≤0.25%

    Influence of conductor position in the jaws

    • ≤0.3% of amplitude

    Load influence up to 5Ω

    • Ω amplitude within specification up to 900 A
    • ≤0.25% of amplitude above 900 A
    • ≤0.1° on phase

    Influence of DC offset

    • ≤2% up to 20 A DC

    Working voltage

    • ≤600 V rms

    Operating temperature

    • -20 °C to +50 °C, <85% RH
    • -4 F to +122 F, <85% RH
    • (excluding ice or dirt in the jaws)

    Storage temperature

    • -40 °C to +70 °C, <85% RH
    • -40 F to +158 F, <85% RH

    Influence of temperature

    • ≤0.1% on amplitude phase within specification

    Influence of humidity

    • amplitude and phase within  specification (excludes ice or dirt on the jaws)

    Max. conductor diameter

    • 52 mm

    Casing protection

    • IP40 with jaws closed

    Operating altitude

    • 2000 m

    Output terminals

    • 4 mm shrouded sockets

    Electrical safety

    • IEC 61010-1:2010 + IEC 61010-2- 030:2010 + IEC61010-2-032:2002


    • IEC61326-1


    • CAT IV 600 V Pollution degree 2


    • 700g


    • 45 mm x 110 mm x 218 mm
  • Supplied Accessories

    • Megger ICLAMP 1000 A AC Current Clamp
    • IN05039 Test Lead
    • DET3TX/DET4TX ICLAMP Ferrite
    • ICLAMP Lead 6220-807
    • ICLAMP Carry Bag
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  • Delivery Information

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    • Saturday Pre-Noon Delivery (on select products only) at £14.50*
    • Sunday Pre-Noon Delivery (on select products only) at £14.50*

    *UK mainland only

    NOTE! For next working day or Saturday/Sunday delivery options the order MUST be placed no later than 3pm on the working day before delivery is required. After 3pm, please arrange with our staff before selecting a priority delivery service. Priority services are available to UK mainland residents only (this might exclude certain areas in the north of Scotland).

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