ABB 1SBL371022R5100 UA63 3-Pole Contactor

Description

• The ABB 1SBL371022R5100 UA63 contactor is designed for capacitor switching applications. It is suitable for switching capacitor banks with inrush current peaks that do not exceed 100 times the nominal root mean square (rms) current. Capacitor banks are commonly used for power factor correction and improving the efficiency of electrical systems.

• The contactor's permissible power ratings depend on the operational voltage and the ambient temperature near the contactor. It is capable of safely handling the switching of capacitors under these specified conditions. Additionally, the contactor has a maximum peak current (denoted as "Î") that it can accept, ensuring safe and reliable switching of capacitor banks.

• A critical safety requirement for capacitor switching is that the capacitors must be fully discharged, with a maximum residual voltage at the terminals not exceeding 50 V, before re-energizing when the contactors are in the closed (making) position. This precaution is essential to prevent electrical hazards and to ensure the longevity of the contactor.