ABB Contactors For Capacitor Switching, 3-Pole UA Series

UA contactors can be used for the switching of capacitor banks whose inrush current peaks are less than or equal to 100 times nominal rms current.
The capacitors must be discharged (maximum residual voltage at terminals ≤ 50 V) before being re-energized when the contactors are making.
These contactors are of the block type design with:
• 3 main poles and 1 built-in auxiliary contact
• control circuit: AC operated
• add-on auxiliary contact blocks for front or side mounting and a wide range of accessories.