Toggle Switches are one of the most important elements of an electrical circuit and performs an important function which if fails will cause the entire circuit to break down. This is allowing the current to pass through or not. If the toggle switches are set to on position, then it allows current to pass through. This is made of a simple mechanism that allows the make up of this switch to be comprising of twin arms that are connected together by way of a single pivot joint or an elbow which creates a sort of snapping action that allows the current to either pass or stop from passing by making the circuit incomplete. In terms of physics, the concept of toggle switches are concerned with devices which include mechanisms to either cur off or allow power to pass through into the circuit thereby making the electronic circuitry functional.
They function like gates where they either are open or close. It is from there that the concept of toggle in this kind of switch comes in. If you are talking about the connections, then such switches can be either simply connected to one device or even connected in a series to operate several devices together. All this can be done with comparative ease and operating a toggle switch, as we all know is really easy. A normal light switch is one easy example of the toggle switch and it is probably the simplest way in which the engineering of them can be explained. So when the gate of toggle switches open, then the current is allowed to pass through and when the gate is closed, then the current does not pass and the circuit is made incomplete. The ratings of the switches are dependant upon the maximum power that can pass through the switch when in a closed position.