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4.4
Line contactors
When selecting the line contactor, the values indicated in the technical data apply. Dimension
the cables and conductors to be connected in strict compliance with local installation
regulations.
NOTICE
Damage to the drive electronics when switching the line contactor under load
When switching the line contactor (type according to the recommended selection) under load,
then the contacts will be subject to premature wear. This can cause the contactor to
malfunction, with subsequent damage to the drive electronics.
• Use a leading switch-off auxiliary contact or use a Voltage Sensing Module (VSM10).
• If this is not possible, then avoid switching the line contactor under load.
Note
You must connect a surge suppression device (e.g. free-wheeling diode or varistor) to the
contactor coil to limit switching overvoltages.
Take into account the switching capacity of the digital output used to control the line contactor.
Booksize power units
Equipment Manual, 01/2022, 6SL3097-6AC30-0BP0
Line connection and line-side power components
4.4 Line contactors
43
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