After a pre-defined delay with an off-delay relay, what occurs?

After a pre-defined delay with an off-delay relay, what occurs?

• A. Contacts return to the starting position
• B. Contacts change state
• C. Power is cut off
• D. Light indicator turns off

Answer: (B)

After a pre-defined delay with an off-delay relay, contacts change state. An off-delay relay is designed to keep its contacts in an activated state for a specified period after the control signal is removed. Once the control signal ends, the relay does not immediately return to its original state; instead, it maintains that energized state for the duration of the delay. After this delay period has elapsed, the contacts then change state, thus completing the relay's function. This delay is particularly useful in applications where processes need a secure shutdown phase or a gradual winding down after the removal of power, ensuring that operations conclude safely and orderly.

After a pre-defined delay with an off-delay relay, contacts change state. An off-delay relay is designed to keep its contacts in an activated state for a specified period after the control signal is removed. Once the control signal ends, the relay does not immediately return to its original state; instead, it maintains that energized state for the duration of the delay. After this delay period has elapsed, the contacts then change state, thus completing the relay's function. This delay is particularly useful in applications where processes need a secure shutdown phase or a gradual winding down after the removal of power, ensuring that operations conclude safely and orderly.