Grounding wire
Single-phase
two-wire circuit
Single-phase three-wire circuit
Three-phase three-wire circuit
CAUTION
• Excessive current applied to CT may cause overheating and damage to
the instrument.
Do not apply any input current exceeding the measurable range to the
instrument.
• This is a precision instrument. Handle with paying attention not to apply
excessive force such as big impact or vibration.
• Open and close the clamp part gently.
• A "click" sound will be made after the Power button is turned on. This
sound is normal because it is the operating sound of the range switching
relay.
5-2 Leakage current measurement
(1)
Grounding wire
Clamp the grounding wire in the same way as the load current
measurement.
(2)
Electrical circuits other than the grounding wire
The operation for measurement is the same as the measurement of
grounding wire current. However, for single-phase two-wire system leakage
current measurement, clamp them together. Also, for single-phase three-
wire and three-phase three-wire system leakage current measurements,
clamp three wires together.
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Summary of Contents for MCL-800D+
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