Description
A Normally Closed (NC) switch is a type of electrical switch that, in its default state, maintains continuity between its terminals. When the switch is not actuated or pressed, the circuit remains closed, allowing current to flow through. However, when the switch is activated or pressed, it opens the circuit, interrupting the flow of current. NC switches are commonly used in various applications such as safety circuits, alarm systems, and control circuits, where a default closed state is desired and circuit interruption indicates an abnormal condition or trigger event.