After the initiating contact is closed, when does a one-shot relay change state?

A one-shot relay is designed to change its output state after a specific time duration has elapsed once the initiating contact is closed. When the initiating contact closes, the one-shot relay begins a predetermined time period (T). It remains in its new state—activated or energized—during this time and then reverts back to its original state after the time period ends.

This behavior ensures that the relay effectively creates a timed pulse or signal, which can be crucial in various applications requiring a delay or timing mechanism. Hence, the change in state occurs after the completion of the specified time duration, reinforcing the function of one-shot relays in control and automation processes.