Description
The Weg star-delta bus bars for CWB contactors provide an easy means of building a star-delta motor starter for 3-phase electric motors. These re specialized starters used to reduce the start-up in-rush currents on electric motors. A star-delta starter consists of 3 contactors working together to provide the appropriate switching so that the motor starts in a lower-current 'Y' mode, and then switches to 'Delta' mode once full speed is reached.
Star-Delta starters should not be used when the motor is controlled by a soft-start or VFD drive.
Contactor Model Combinations for the EC-SD1
- CWB9/CWB9/CWB9
- CWB12/CWB12/CWB9
- CWB18/CWB18/CWB12
- CWB25/CWB25/CWB18
- CWB32/CWB32/CWB18
- CWB38/CWB38/CWB25
Documentation
