Owner's Manual

MCC1010 and MVC1010
1000 A AC CURRENT CLAMP
MCC1010 and MVC1010
1000 A AC Current Clamp
DESCRIPTION
The current probe is designed for measurements of AC
currents up to 1000 A with a 1000:1 step-down ratio.
The probe offers excellent accuracy (0.3% error at full range)
and small phase shift (0.7° at full range) so it can be used for
metering of power, energy and power quality applications.
Such high performance is achieved because the magnetic
cores are made from high-permeability FeNi alloy.
The rated terminating resistance (burden) of 1 Ω must be
provided by the instrument connecting to MCC1010 and
MVC1010. The output terminals are protected with a voltage
limiting circuit ensuring a safe-to-touch voltage under all rated
conditions.
MCC1010 and MVC1010 are rated to CATIV 600 V, according
the international standard IEC 61010.
APPLICATIONS
The MCC1010 and MVC1010 are non contact current sensing
clamps which is simple to use and has application with the
following instruments:
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Power quality analysers
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Oscilloscopes
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Motor testers
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Clamp enabled earth testers
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Attached Rod Technique (ART)
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Stakeless testing
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Data loggers
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Digital multimeters
CLAMP USAGE
The MCC1010 and MVC1010 are intended to clamp around a
single phase of the asset to be tested and not phase + neutral
because this would yield an incorrect result as a consequence
of current flowing in opposite directions. Keep the clamps
separate wherever possible, to improve quality of multiphase
current measurements.
An ammeter measuring up to 1 A can be connected directly to
the MCC1010 or MVC1010. A current of 1000 A will result in
the ammeter reading 1 A (1000:1 step down ratio).
The MCC1010 and MVC1010 generates 1 mV output signal
across 1 Ω burden resistance for every 1 A of primary current,
so if using a multimeter, one with a mV AC range is required.
Dedicated earth tester instruments like Megger’s DET range,
DET3TC, DET4TC and DET4TCR will need to ensure the input
resistance and measurement circuitry are appropriate for the
1 mV – 1 V input range and a primary current limit of 20 A.
If using a TRMS multimeter the voltage reading will be TRMS
because of the accuracy and crest factor performance of the
MCC1010 and MVC1010 clamps.
Both clamps must be used when completing resistance
measurements. The MCC1010, induces a current through
a conductor. The MVC1010, measures the voltage drop
across the conductor. This way, non-contact resistance
measurements can be undertaken using the MCC1010 and
the MVC1010 clamps.

CAT IV 600 V current measurement to
1000 A AC
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1 mA/1 A sensitivity with rated burden
of 1 Ω
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Large jaws for cables up to 52 mm
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Overvoltage protection of the output
terminals
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Suitable for leakage currents