Schneider Electric QOB320SWN U Circuit Breaker

The Schneider Electric Square D QOB320SWN bolt-on, three-pole miniature circuit breaker is rated for 20 A at 120/240 VAC with a 10 kA interrupting capacity, designed for use in QOB panels that require neutral switching. The SWN suffix denotes switch-neutral operation, meaning the device both interrupts the hot conductors and switches the neutral in multiwire circuits. This thermal-magnetic breaker uses bolt-on mounting rather than plug-in installation and includes a Visi-Trip visual trip indicator to confirm when the breaker has tripped. Typical applications include commercial lighting, HVAC, and general-purpose branch circuits in 3-pole, 120/240 V installations where a 20 A rating and 10 kAIC are appropriate. As a member of the Square D/QO family lineage, the QOB320SWN shares construction and compatibility expectations with other QOB bolt-on breakers. Sources: Schneider Electric official product page for QOB320SWN; QOB320SWN datasheet; Schneider Electric marketplace listing; distributor listings.