MOC Capacitor Duty Contactors are specially designed for capacitor switching applications. As capacitor switching is associated with high inrush current, the contactors are provided with damping resistors which limit the value of inrush current to a safe value. The contactors are used in APFC panels for switching power capacitors depending upon the amount of reactive power compensation required.

MOC range of capacitor switching contactors has a patented mechanism that disconnects the early make auxiliary contacts after the main contacts are closed. This eliminates the possibility of auxiliary contacts carrying and breaking the currents during braking operations. This enhances the product switching performance and improves the product life