This post Difference Between 1-Pole and 2-Pole Breakers – NEC & IEC appeared first on ELECTRICAL TECHNOLOGY. Difference Between Single-Pole and Double-Pole Breakers – Wiring and Applications in IEC (230V) and NEC (120V/240V) Circuits If you look inside a household main panel or consumer unit, you will notice two common types of breakers e.g. single-pole and double-pole. While both serve the same fundamental purpose i.e. protecting people from electric shock and equipment … Visit the Dif...