What should self-limited power supplies be labeled with?

Self-limited power supplies are designed to automatically limit their output current to a pre-defined maximum level to protect both themselves and any connected circuits. Therefore, labeling these power supplies with the maximum current output available is essential for safety and proper usage. It allows users to understand the capabilities of the power supply, ensures that they do not exceed the current limit, which could otherwise result in overheating or damage to both the power supply and the connected devices.

While other labels such as voltage and purpose, manufacturer details, or circuit protection requirements might provide helpful information, they do not convey the critical aspect of current limitation inherent to self-limiting power supplies. Knowing the maximum current output is vital for ensuring system safety and reliability, making it the most important label in this context.