According to the NFPA, the breaker supplying power to an alarm system should not exceed what amperage?

The correct answer, which indicates that the breaker supplying power to an alarm system should not exceed 20 Amps, aligns with the specifications outlined by the National Fire Protection Association (NFPA). This maximum amperage is important for the safety and proper functioning of alarm systems, as exceeding it could lead to overheating and potential failure of the system. Alarm systems typically use lower power requirements, and a 20 Amp circuit ensures that they receive adequate power without risking damage or creating hazardous conditions from overcurrent. Thus, adhering to this guideline helps maintain operational integrity and enhances the reliability of fire and safety alarms in a professional installation setting.