Square D QOT230230 Circuit Breaker

Square D QOT230230 Circuit Breaker is a four-pole quad breaker in Schneider Electric's Square D QOT family, delivering four 30 A protection poles for 240 V service in a single device. It is designed for panels that accept QOT-style quad breakers, providing a compact solution when multiple branch circuits or feeders must be protected within the same enclosure. Each of the four poles is rated at 30 A, enabling independent protection across four 120/240 V circuits in a quad configuration. The QOT230230 part number identifies this 4-pole, 30 A, 240 V unit and is commonly encountered in older Square D installations; some retailer listings refer to this configuration as "old style" QOT with a metal hook, which can influence mounting compatibility. Before replacing a breaker, confirm that your panel accepts QOT quad breakers and that the terminations and bus connectors match the model.