The FSA20S... is service-friendly

The FSA20S has a pointed contact pin that can penetrate thin to moderately thick oxide layers on the busbars. As a result, the contact pin is subject to a degree of wear and must be replaced from time to time. (Can be replaced by the customer). In order to replace the contact pin, the FSA clamp must be completely disconnected from the power supply. Grasp the head of the contact pin and pull out with a slight twisting movement. Push in new contact pin.