Determining the correct circuit breaker for an electric motor involves considering the motor’s full-load current (FLA), along with factors like voltage, phase (single or three), and service factor. Online tools and established electrical codes provide guidance to ensure proper circuit protection. For example, a 1 horsepower, single-phase motor operating at 120 volts might require a 15-amp breaker, but variations exist based on specific motor characteristics.
Accurate circuit protection is crucial for preventing motor damage from overloads and short circuits. Properly sized breakers safeguard the motor windings from overheating, extend the motor’s lifespan, and prevent potential fire hazards. Historically, determining appropriate protection relied on manual calculations and codebooks; however, digital tools have simplified the process, improving accuracy and accessibility.
