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
- 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.
- 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
- 15 Hz – 10 kHz
- ≥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
- ≤600 V rms
- -20 °C to +50 °C, <85% RH
- -4 F to +122 F, <85% RH
- (excluding ice or dirt in the jaws)
- -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
- IP40 with jaws closed
- 2000 m
- 4 mm shrouded sockets
- IEC 61010-1:2010 + IEC 61010-2- 030:2010 + IEC61010-2-032:2002
- CAT IV 600 V Pollution degree 2
- 45 mm x 110 mm x 218 mm
- 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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