The output power supply for a low-voltage lighting system must be rated at a maximum of what under load conditions?

The correct answer indicates that the output power supply for a low-voltage lighting system should be rated at a maximum of 25 amperes under load conditions. This rating is crucial because it reflects the maximum current that the system can safely handle while providing power to connected devices.

In low-voltage lighting systems, ensuring proper amperage is essential for maintaining safety and preventing the risk of overheating or electrical fires. A 25-ampere rating strikes a balance between sufficient power delivery for typical low-voltage applications and ensuring that the system components remain within safe operating limits. This rating helps protect both the equipment and the users from potential overload scenarios.

Understanding these limits is vital for installers and technicians working with low-voltage systems, as exceeding the specified amperage could lead to equipment failure or pose safety hazards. Therefore, adhering to the recommended power supply ratings ensures reliable function and longevity of the lighting system.