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ACM100 User's Manual
Step 7: Install the third Voltage Sense cable as follows:
a. Connect the white wire from one end of the second Voltage Sense cable to pin 6
(V
) on the ACM100.
CNeutral
b. Connect the white wire from the other end of the second Voltage Sense cable to the
neutral wire of the AC source being monitored.
c. Connect the black wire from one end of the second Voltage Sense cable to pin 3
(V
) on the ACM100
CLine
d. Connect the black wire from the other end of the second Voltage Sense cable to a
fuse appropriately sized for the black wire (18 gauge wire minimum and 3 amp fuse
or less).
e. Connect the other end of the fuse to the AC source hot wire (the fuse should be placed
within 6 inches of the connection to the hot wire).
2.4.2.4 Three-Phase Delta (Phase A, B, C) Connection
Please refer to Figure 6 for connecting the ACM100 to a three phase delta system.
Line (Phase C)
Line (Phase B)
Line (Phase A)
Use the following instructions when you are connecting the ACM100 to a three-phase delta
circuit connected via three hot wires. You will need to install three current transducers and three
user-supplied voltage sense cables. The ACM100 comes with a single current transducer so
you will need to purchase two optional current transducers (please refer to Section 1.3) for
monitoring this type of system.
Step 1: De-energize the AC Source.
Page 10
"Floating"
Neutral
1 2
3
4
Figure 6 – Three-Phase Delta Connection Diagram
Current
Transducer
Current
Transducer
Current
Transducer
5
6 7
8 9 10 11 12
+
Max
380 Volts
50-60Hz
-
ACM100 Screw Terminals
Revision 1.3
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