Arizona Contractor License - Low Voltage Communication Systems (CR-67) Practice Exam 2025: Your All-in-One Guide to Exam Success!

The maximum nominal output voltage for non-power limited fire alarm circuits is 600 volts. This voltage limit is established to ensure safety and reliability in fire alarm systems. Non-power limited circuits can handle higher voltages because they are not restricted to low power levels, which allows them to transmit signals over longer distances without significant degradation.

Maintaining a maximum output of 600 volts is crucial as it aligns with industry standards and codes, which are designed to protect personnel and equipment in emergency situations. Limiting the output to this voltage helps mitigate risks such as electrical shock or fire hazard while still allowing the fire alarm system to function effectively.

Understanding the voltage limitations for different types of circuits, especially within safety-critical systems like fire alarms, emphasizes the importance of adhering to the established guidelines to ensure safe installation and operation.