What occurs when a normally open limit switch is activated?

When a normally open limit switch is activated, it completes the circuit, allowing current to flow. This change causes the corresponding output to turn on. Normally open switches are designed to stay in the open state until a specific physical action or condition occurs, such as the presence of an object. When activated, the contact closes, enabling the operation of the output device or system connected to the switch.

In practical applications, this behavior is useful for initiating actions such as starting a motor, opening a valve, or triggering alarms, depending on the specific setup of the system. Understanding how normally open switches function is crucial for designing and troubleshooting control systems effectively.