A 14-AWG conductor should be connected to which type of fuse or breaker?

A 14-AWG conductor is typically rated for a maximum of 15 amps. This rating aligns with the National Electrical Code (NEC), which specifies that a 14-gauge wire should be protected by a 15-amp circuit breaker or fuse.

Using a 15-amp breaker ensures that the wire is adequately protected from overheating, which can occur if the current exceeds the wire’s capacity. If a circuit were to carry more than 15 amps, the risk of the conductor overheating increases, potentially leading to insulation failure and electrical fires.

While the option for a 10-amp breaker might seem safe, it would not be suitable for providing the circuit’s full capability. The 20-amp breaker, although it would allow for more current, exceeds the safe operating limit for a 14-AWG conductor, presenting a potential fire hazard. The 30-amp breaker is significantly above the rating and would offer no protection against overload for a 14-gauge wire, further exacerbating the risk.

Therefore, connecting a 14-AWG conductor to a 15-amp breaker is the optimal choice to ensure both safety and compliance with electrical standards.