What is the maximum allowed power for a power-limited Class 1 source?

The maximum allowed power for a power-limited Class 1 source is defined as 30V and 1000VA. This specification is crucial for ensuring safety in electrical installations involving low voltage communication systems.

In a power-limited Class 1 circuit, the voltage does not exceed 30 volts, which is designed to minimize the risk of electrical shock and enhance consumer safety. The limit of 1000 VA indicates the maximum apparent power that can be delivered by the source without exceeding the safety standards set by regulations.

This classification and its associated limits are especially relevant for installations where multiple devices are powered by the same source; adhering to these restrictions reduces the potential hazard and maintains compliance with the National Electrical Code (NEC) and other relevant guidelines. Understanding these specifications is important for contractors working in the low voltage communication systems field, as they directly relate to system design, equipment selection, and overall project safety considerations.