Electronically controlled dual-point single-point

I understand that by double points and single points, you mean the signals used for controlling the start and stop of devices, right? It means that if one point is used for activation and shutdown, it’s a single-point system; while if one point is used for activation and another for shutdown, it’s a two-point system, right? If that’s the case, choosing between single-point or dual-point depends on the application scenario of your device; it is mainly determined by the importance of the device. For high-voltage equipment with voltages above 6 KV, the switching control is typically carried out using two points. Such equipment is usually quite important and comes with numerous protection mechanisms; therefore, dual-point control is employed to ensure reliability. Additionally, most of this type of equipment has separate coils or relays, or other actuating devices for opening and closing the circuit, which is why two-point control is used. Single-point control is generally used for low-voltage equipment as well as less critical devices. However, two-point control is used for equipment with low pressure that is critical and in applications requiring high reliability. In general, this issue is considered from the perspectives of process reliability, equipment safety, equipment configuration costs, and overall factors.

I’m not sure though whether an important electrical device like an oil pump requires a dual-point connection