3KC3 and 3KC6 transfer switching equipment3KC3 and 3KC6 transfer switching equipment
Inputs of 3KC3 transfer switching equipment
In addition to the already installed auxiliary switch to indicate switch position, the 3KC3 transfer switching equipment has inputs for power supply and control. The location of these inputs is shown below:

The inputs of the transfer switching equipment are used to supply power on the one hand (3KC3 only) and to enable remotely operated transfer switching on the other.
Designation |
Pin |
Meaning |
Explanation |
Properties |
Recommended cable cross-section |
---|---|---|---|---|---|
Power supply |
101, 102 |
- |
Power supply from source I |
220 V AC -20% (176 V AC) … 240 V AC +20% (288 V AC) 45 … 65 Hz |
0.5 … 2.5 mm² (solid) 0.5 … 1.5 mm² (stranded) |
201, 202 |
- |
Power supply from source II |
|||
Control inputs of motor operator |
313 |
0 |
Command for switch to position 0 (if closed with input 317) Allows the logic to be selected: continuous operation logic if always closed, otherwise impulse logic |
Do not supply power. Use only with floating contacts and supply via pin 317. |
|
314 |
II |
Command for switch to position II (if closed with input 317) |
|||
315 |
I |
Command for switch to position I (if closed with input 317) |
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317 |
C |
Control terminal for inputs 313 - 315 |
NOTICE
Do not connect the control inputs to an external power supply.
Avoid any pressure on the power supply and control inputs when connecting additional cables.