Fig. 5 example 1, 2 and 3 windings – Crompton Controls M10 User Manual
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Selecting the current transformer
Emotron AB 01-2550-01r3
Fig. 4
Example CTM 025 with 2 windings for a 12 A motor
Fig. 5
Example 1, 2 and 3 windings.
NOTE: Normally the appropriate Current Transformer (CTM XXX) will have
been ordered and shipped with the Emotron M10. Check that this is the
case; contact the supplier if in doubt.
CAUTION: Terminals 1 and 2 (S1, S2) carry live voltage.
NOTE: The current transformer connection and orientation are not polarity
sensitive, but must be connected to the same phase that is being referenced
for terminal 9 of the Emotron M10.
L1
L2
L3
1
2
S1 S2
M
3
M10
2 windings
CTM025
P2
1
2
P2
5:1
5:2
5:3