TAVRIDA ELECTRIC VCB Series, User Manual

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Table 12 - CM terminal arrangement
X1 X3
Terminal No. Connection Terminal No. Connection
1 Power supply input (+) 1 Actuator coil output
2 Power supply input (-) 2 Actuator coil output
3 Relay output 1 NC
4 Relay output 1 Com
5 Relay output 1 NO
6 Relay output 2 NC
7 Relay output 2 Com
8 Relay output 2 NO
9 Relay output 3 NC
10 Relay output 3 Com
11 Relay output 3 NO
12 Close input
13 Close input
14 Trip input
15 Trip input
CM relay functionality:

Relay 1 -
“ISM main contact position” relay;

Relay 2 -
“Ready” relay;

Relay 3 -
“Malfunction of Loss of auxiliary supply” relay.
Relay “ISM main contact position“ keeps its state after CM power supply disconnection.
USB port of CM is not used under service conditions (only for CM programming during production).
Installation of the CM
The installation of the CM is carried out according to the panel design either on the draw out unit or in the low
voltage compartment of the switchboard. It must be separated from the high voltage compartment.
1. CM holders
2. Slots for CM mounting (by M4 screws)
Figure 143
Provisions for CM_16 installation