What is the status of contacts on a potential relay when not energized?

The status of contacts on a potential relay when not energized is typically classified as normally closed. This means that in a non-energized state, the contacts form a complete circuit, allowing current to flow through it.

When the potential relay receives power (is energized), the contacts change state to open, interrupting the flow of current. This design is often utilized in refrigeration systems to ensure that electric components receive proper voltage levels and to protect against faults.

Understanding the functionality of the relay is crucial for professionals in refrigeration, as it plays a significant role in the operation and safety of the overall system. Knowing that the contacts are normally closed when de-energized helps technicians quickly diagnose issues in the electrical circuit and ensures proper troubleshooting methods are applied when working on refrigeration equipment.