52 Connect Devices WAGO-I/O-SYSTEM 750
750-493 3-Phase Power Measurement Module
Manual
Version 1.2.0
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7.3 Current Measurement
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7.3.1 Current Measurement on a Motor
For measuring the currents of a 3 phase electrical motor connect it with the CAGE
CLAMPS
®
IL1, IL2, IL3 and IN via current transformers.
Connect CAGE CLAMP
®
N to earth, if not connected to the neutral wire!
If you do not connect the CAGE CLAMP
®
N with the neutral wire of the supply
network (e.g. using the module for pure current measurement) you must connect
N to earth PE to avoid hazardous voltages in the event of faults!
Figure 13: Current Measurement on a Motor