Application: power supply to Generator Changeover, Auto/Manual Changeover, Standby/Remote Changeover and other special application circuits, mainly used in Distribution Panels, UPS ets.

Rotary switches are used to cooperate two different circuits with different number of inputs and outputs, rotary switches without jumpers (potential free contacts) are used to connect two different circuits from two different sources with two different operating voltages or any other incompatible lines. All contacts by default are “Break Before Make” (BBM) type to avoid overlapping of different circuits. However, for overlapping changeover contacts, BBM types are offered against specific requirements.