The Square D Homeline circuit breakers are in a 1 in. wide format for 1-pole circuit breakers. They are designed to plug into Homeline load centers that are available from 4 to 42 circuits.
The Square D exclusive Qwik-Open® mechanism, with a trip reaction within 1/60th of a second, is standard on all 15 A and 20 A circuit breakers.
High magnetic trip circuit breakers are recommended for applications where high initial inrush current may occur.
Homeline Arc Fault Circuit Interrupters—Provide overload and short circuit protection, plus arc fault protection in accordance with UL 1699.

HOM-GFI circuit breakers provide 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 ground is 6 milliamperes or more.