What is the maximum rated output allowed for a Class 1 power-limited circuit?

The maximum rated output for a Class 1 power-limited circuit is defined as not more than 30 volts and 1000 volt-amperes. Class 1 circuits are designed to carry low voltage with a limited output, which is crucial to ensure safety and minimize the risk of electric shock or fire in fire alarm systems. The specified maximum voltage of 30V is intended to reduce the hazards associated with higher voltages, while the limit of 1000 volt-amperes indicates a higher capacity for power delivery compared to other classes, enabling the circuit to power devices such as relays and sensors effectively without exceeding safety thresholds.

This characteristic allows the circuit to be safely installed and operated in environments where fire alarm components must perform reliably without the risk of overloading. Understanding these limits is essential for proper installation and compliance with safety standards.