Hioki PW3360-20 - Chapter 4 Changing Settings

3.6 Connecting Clamp Sensors to Lines to be Measured
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3
Chapter 3 Connecting to Lines to be Measured
3
Leakage Current Measurement
single-phase/2-wire: Place the clamp around two wires.
single-phase/3-wire: Place the clamp around three wires.
3-phase/3-wire: Place the clamp around three wires.
3-phase/4-wire: Place the clamp around four wires.
Grounding wire: Place the clamp around one wire.
Current direction arrow in
the direction as shown.
Example
Load
Device
Current Flow 
Direction
B-type grounding wire