single-pole circuit breaker

<p><span style="color:rgb(10,10,10);font-family:'Google Sans', Arial, sans-serif;">A single-pole breaker is </span>a 120-volt, 15–20 amp circuit breaker that controls and protects one hot wire<span style="color:rgb(10,10,10);font-family:'Google Sans', Arial, sans-serif;">, making it the standard choice for lighting, wall outlets, and small appliances. Typically 1-inch wide, these breakers occupy one slot in a residential service panel and trip to cut power during overloads or short circuits.</span></p>