Square D™ is the industry leader in circuit protection with a long-standing reputation for quality and reliability. Square D™ offers Homeline™ a wide range of circuit breakers to meet all National electric code requirements and provide superior electrical safety, including: dual Function, 1 and 2-pole combination Arc-Fault circuit interrupters (CAFIs) and Arc-D-Tect CAFI circuit Breakers. Homeline™ load centers accept Plug-On Neutral, pigtail, full-size and tandem circuit breakers on every space.