Square D QO230 Plug-On Circuit Breaker

Square D QO230 is a 2‑pole, 30 A plug‑on circuit breaker for 120/240 V AC circuits with a 10 kA interrupting rating, part of the QO family designed for quick snap‑in installation in compatible panels. This QO plug‑on device provides overcurrent protection for two‑pole branch circuits and is intended for use in QO load centers, NQ panelboards, OEM mounting bases, and Speed‑D switchboards, making it a common choice for residential and light commercial installations needing reliable 2‑pole protection at 120/240 V. With its 30 A rating and 10 kA interruption capacity, the QO230 offers robust short‑circuit protection tailored to circuits that require two‑pole coverage.