The Square D Homeline 50 amps Ground Fault 2-Pole Circuit Breakers are designed for overload and short-circuit protection, combined with Class A ground fault protection. Class A denotes a ground fault circuit interrupter that will trip when a fault current to the ground is six mA or more. This double pole breaker is compatible with Homeline load centers and CSED devices. The ANSI-certified and UL-listed unit is rated for 120/240 VAC and 10,000 AIR. Homeline electric circuit breakers are built with the same Square D brand quality you have come to expect at a price that makes them the best value in their Class. Designed exclusively for the residential market, Homeline products offer everything you need to distribute electricity throughout your home.