A double-pole breaker is a 240-volt circuit breaker that occupies two slots in an electrical panel, designed to protect high-demand appliances (e.g., HVAC, ovens, dryers) by switching off both hot wires simultaneously during a fault. These breakers (rated 20-60A) enhance safety by eliminating "phantom voltage," making them essential for 240V, or 120/240V circuits.
Key Features & Uses
- Capacity: Typically 20–60 Amps, used for 240V circuits.
- Application: Required for high-power appliances: central AC, heat pumps, electric water heaters, ranges, and dryers.
- Safety: They connect to two hot wires; if one trips, the linked mechanism forces the other to trip, cutting all power to the appliance.
- Appearance: They look like two single-pole breakers connected together with a single common trip handle.