The Canadian Electrical code requires Arc Fault Circuit Interrupters (AFCIs) in all branch circuits that supply outlets in bedrooms for new residential construction. They are also suggested for other living areas of the home to increase protection and add peace-of-mind. This Federal Pioneer arc fault circuit breaker detects unintended arc faults, overloads and short circuits. It measures 3" x 2" x 4.5" and requires 2 spaces in the loadcentre.