Square D Q08MB-1RB is a 100-amp combination load center panel built with a built‑in main breaker to serve as the primary disconnect and distribution point for branch circuits. As a combination load center, it consolidates the service disconnect and the interior panel in a single enclosure, simplifying installation for residential or light commercial applications. The Q08MB-1RB designation identifies this specific main-breaker configuration within Square D’s lineup, offering a centralized, code-compliant solution for safely distributing power to downstream circuits.
